WO2023094736A1 - Suspension minérale stabilisée par dispersion - Google Patents
Suspension minérale stabilisée par dispersion Download PDFInfo
- Publication number
- WO2023094736A1 WO2023094736A1 PCT/FR2022/000120 FR2022000120W WO2023094736A1 WO 2023094736 A1 WO2023094736 A1 WO 2023094736A1 FR 2022000120 W FR2022000120 W FR 2022000120W WO 2023094736 A1 WO2023094736 A1 WO 2023094736A1
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- WO
- WIPO (PCT)
- Prior art keywords
- compound
- sulfur
- chosen
- salt
- less
- Prior art date
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- 239000000725 suspension Substances 0.000 title claims abstract description 50
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 49
- 239000011707 mineral Substances 0.000 title claims abstract description 49
- 239000006185 dispersion Substances 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 32
- 238000002360 preparation method Methods 0.000 claims abstract description 31
- 150000002500 ions Chemical class 0.000 claims abstract description 24
- 239000007900 aqueous suspension Substances 0.000 claims abstract description 23
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 21
- 239000008199 coating composition Substances 0.000 claims abstract description 10
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 239000000945 filler Substances 0.000 claims abstract description 4
- 229920000642 polymer Polymers 0.000 claims description 74
- 150000001875 compounds Chemical class 0.000 claims description 70
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 43
- 239000011593 sulfur Substances 0.000 claims description 43
- 229910052717 sulfur Inorganic materials 0.000 claims description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 38
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 36
- 150000003839 salts Chemical class 0.000 claims description 36
- 239000002245 particle Substances 0.000 claims description 35
- 239000000178 monomer Substances 0.000 claims description 31
- DIORMHZUUKOISG-UHFFFAOYSA-N sulfoformic acid Chemical compound OC(=O)S(O)(=O)=O DIORMHZUUKOISG-UHFFFAOYSA-N 0.000 claims description 29
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 28
- 238000000227 grinding Methods 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 23
- 239000011574 phosphorus Substances 0.000 claims description 19
- 229910052698 phosphorus Inorganic materials 0.000 claims description 19
- 150000003464 sulfur compounds Chemical class 0.000 claims description 18
- 239000003999 initiator Substances 0.000 claims description 17
- 230000003647 oxidation Effects 0.000 claims description 17
- 238000007254 oxidation reaction Methods 0.000 claims description 17
- -1 phosphorus compound Chemical class 0.000 claims description 17
- 238000006116 polymerization reaction Methods 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 9
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000011734 sodium Substances 0.000 claims description 7
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 6
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims description 6
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 6
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 5
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 5
- 239000011976 maleic acid Substances 0.000 claims description 5
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 5
- 239000004289 sodium hydrogen sulphite Substances 0.000 claims description 5
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 5
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 4
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 claims description 4
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 4
- GNSFRPWPOGYVLO-UHFFFAOYSA-N 3-hydroxypropyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCO GNSFRPWPOGYVLO-UHFFFAOYSA-N 0.000 claims description 4
- QZPSOSOOLFHYRR-UHFFFAOYSA-N 3-hydroxypropyl prop-2-enoate Chemical compound OCCCOC(=O)C=C QZPSOSOOLFHYRR-UHFFFAOYSA-N 0.000 claims description 4
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims description 4
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 4
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 4
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 4
- 239000001023 inorganic pigment Substances 0.000 claims description 4
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 claims description 4
- 239000012860 organic pigment Substances 0.000 claims description 4
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims description 4
- 229940088417 precipitated calcium carbonate Drugs 0.000 claims description 4
- 239000006254 rheological additive Substances 0.000 claims description 4
- XHZPRMZZQOIPDS-UHFFFAOYSA-N 2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(C)(C)NC(=O)C=C XHZPRMZZQOIPDS-UHFFFAOYSA-N 0.000 claims description 3
- OURSFPZPOXNNKX-UHFFFAOYSA-N 3-sulfopropanoic acid Chemical compound OC(=O)CCS(O)(=O)=O OURSFPZPOXNNKX-UHFFFAOYSA-N 0.000 claims description 3
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- 239000010459 dolomite Substances 0.000 claims description 3
- 229910000514 dolomite Inorganic materials 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 3
- 239000001095 magnesium carbonate Substances 0.000 claims description 3
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 3
- 239000000454 talc Substances 0.000 claims description 3
- 229910052623 talc Inorganic materials 0.000 claims description 3
- 235000012222 talc Nutrition 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 235000010215 titanium dioxide Nutrition 0.000 claims description 3
- YJHZESNWLCHQIK-UHFFFAOYSA-N 2-methyl-3-sulfopropanoic acid Chemical compound OC(=O)C(C)CS(O)(=O)=O YJHZESNWLCHQIK-UHFFFAOYSA-N 0.000 claims description 2
- 229910017489 Cu I Inorganic materials 0.000 claims description 2
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical compound OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 claims description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium peroxydisulfate Substances [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 2
- VAZSKTXWXKYQJF-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)OOS([O-])=O VAZSKTXWXKYQJF-UHFFFAOYSA-N 0.000 claims description 2
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 2
- ZETCGWYACBNPIH-UHFFFAOYSA-N azane;sulfurous acid Chemical compound N.OS(O)=O ZETCGWYACBNPIH-UHFFFAOYSA-N 0.000 claims description 2
- LVGQIQHJMRUCRM-UHFFFAOYSA-L calcium bisulfite Chemical compound [Ca+2].OS([O-])=O.OS([O-])=O LVGQIQHJMRUCRM-UHFFFAOYSA-L 0.000 claims description 2
- 239000001175 calcium sulphate Substances 0.000 claims description 2
- 235000011132 calcium sulphate Nutrition 0.000 claims description 2
- 150000001879 copper Chemical class 0.000 claims description 2
- BDAGIHXWWSANSR-NJFSPNSNSA-N hydroxyformaldehyde Chemical compound O[14CH]=O BDAGIHXWWSANSR-NJFSPNSNSA-N 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 2
- 150000002505 iron Chemical class 0.000 claims description 2
- SUPUVLWGKPVHBQ-UHFFFAOYSA-M lithium sulfite Chemical compound [Li+].OS([O-])=O SUPUVLWGKPVHBQ-UHFFFAOYSA-M 0.000 claims description 2
- LPHFLPKXBKBHRW-UHFFFAOYSA-L magnesium;hydrogen sulfite Chemical compound [Mg+2].OS([O-])=O.OS([O-])=O LPHFLPKXBKBHRW-UHFFFAOYSA-L 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 150000002978 peroxides Chemical class 0.000 claims description 2
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims description 2
- DJEHXEMURTVAOE-UHFFFAOYSA-M potassium bisulfite Chemical compound [K+].OS([O-])=O DJEHXEMURTVAOE-UHFFFAOYSA-M 0.000 claims description 2
- 235000010259 potassium hydrogen sulphite Nutrition 0.000 claims description 2
- 239000004293 potassium hydrogen sulphite Substances 0.000 claims description 2
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 2
- 229910000018 strontium carbonate Inorganic materials 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- 229910052788 barium Inorganic materials 0.000 claims 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims 1
- 239000002270 dispersing agent Substances 0.000 abstract description 5
- 229920000058 polyacrylate Polymers 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 12
- 239000012764 mineral filler Substances 0.000 description 7
- 238000005481 NMR spectroscopy Methods 0.000 description 6
- 239000003643 water by type Substances 0.000 description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000004255 ion exchange chromatography Methods 0.000 description 4
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 150000003863 ammonium salts Chemical class 0.000 description 3
- 239000004815 dispersion polymer Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 238000011088 calibration curve Methods 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 229910003002 lithium salt Inorganic materials 0.000 description 2
- 159000000002 lithium salts Chemical class 0.000 description 2
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000001542 size-exclusion chromatography Methods 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 238000013112 stability test Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- HNSDLXPSAYFUHK-UHFFFAOYSA-N 1,4-bis(2-ethylhexyl) sulfosuccinate Chemical compound CCCCC(CC)COC(=O)CC(S(O)(=O)=O)C(=O)OCC(CC)CCCC HNSDLXPSAYFUHK-UHFFFAOYSA-N 0.000 description 1
- 238000012573 2D experiment Methods 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 241000549556 Nanos Species 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical class [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical group OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- AYJRCSIUFZENHW-DEQYMQKBSA-L barium(2+);oxomethanediolate Chemical compound [Ba+2].[O-][14C]([O-])=O AYJRCSIUFZENHW-DEQYMQKBSA-L 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002270 exclusion chromatography Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- XFHJDMUEHUHAJW-UHFFFAOYSA-N n-tert-butylprop-2-enamide Chemical compound CC(C)(C)NC(=O)C=C XFHJDMUEHUHAJW-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical compound O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical class OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 229920005996 polystyrene-poly(ethylene-butylene)-polystyrene Polymers 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical class [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 description 1
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/10—Treatment with macromolecular organic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
- C09C3/041—Grinding
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
- D21H17/74—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes of organic and inorganic material
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
Definitions
- the invention provides an aqueous suspension of a mineral material, for example calcium carbonate, which is prepared by means of an aqueous dispersion of (meth)acrylic polymer neutralized by means of a monovalent ion.
- a dispersing agent as well as the use of this mineral suspension for the preparation of a mass filler for the preparation of paper or for its use for the preparation of a coating color for paper or for the preparation of a coating composition.
- Methods for preparing a suspension of mineral matter are known.
- methods are known which use dispersing agents or grinding aid agents, in particular to control the rheology of the suspension during its preparation or its storage.
- Document WO 2007077484 describes the preparation, in the presence of a polyacrylate, of an aqueous suspension comprising ground calcium carbonate and precipitated calcium carbonate.
- Document WO 2008010055 describes the dispersion in water of a mineral material in the presence of a (meth)acrylic-maleic copolymer.
- the methods for dispersing or grinding mineral matter must be effective and make it possible to control the particle size of the particles obtained.
- the methods of grinding mineral matter must have a high efficiency in terms of grinding time for a particular particle size for a defined quantity of mineral matter. Indeed, for the preparation of a defined quantity of mineral particles of particular grain size, a reduced use time of the grinding installations allows an improvement in the overall yield of the grinding method.
- viscosity control of aqueous suspensions of dispersed or ground mineral matter particles is also essential. It is also important to be able to prepare aqueous suspensions of particles of mineral matter having a high dry extract. A high dry extract of these aqueous suspensions of particles of mineral matter makes it possible in particular to increase the productivity of the methods which use these suspensions.
- dispersing agents or grinding aid agents should be able to be prepared in the absence of compounds which may be considered harmful from an environmental point of view or in the absence of compounds whose use is restricted by regulatory provisions.
- preparation of these agents in the absence of a compound comprising phosphorus should be preferred, in particular the absence of phosphorus in oxidation state I, III or V.
- aqueous compositions of mineral filler are used to provide a mineral filler within the pulp comprising water and fibers of vegetable origin, in particular fibers of cellulosic material.
- the mineral filler is in the form of particles.
- the use of such mineral fillers makes it possible in particular to improve the physical properties of the paper, in particular to improve its optical properties, or else to reduce the relative quantity of cellulosic material with respect to the quantity of mineral filler. Improving the efficiency of papermaking methods is also enabled through the use of these mineral fillers.
- the formation of flocs of particles of mineral filler or of fibers disturbing the quality of the paper must also be limited. Improving the compatibility of the various compounds used during the preparation of the paper must also be sought.
- the invention provides an aqueous suspension S of mineral particles prepared by dispersing in water at least one mineral material M in the presence of an aqueous dispersion comprising: a) at least one a-sulfonated polymer P prepared in water and in the absence of phosphorus compound, by a polymerization reaction of at least one monomer A chosen from acrylic acid, methacrylic acid, a salt of acrylic acid, a salt of methacrylic acid and combinations thereof, in the presence of at least one initiator compound and at least one sulfur compound T comprising sulfur in oxidation state IV (sulfur IV or S IV), and totally or partially neutralized only by means of at least one monovalent ion, b) at least one compound B chosen from a sulpho-carboxylic acid, a sulpho-carboxylic acid salt and combinations thereof , present in a molar amount of less than 25% relative to the molar amount of sulfur IV.
- the particles of dispersed material M have a size of less than 50 ⁇ m or else a size ranging from 0.05 to 50 ⁇ m or else a size of less than 10 ⁇ m, preferably less than 5 ⁇ m or 2 ⁇ m, more preferably less than 1 ⁇ m or less than 0.5 ⁇ m.
- the material M is ground in water in the presence of the aqueous dispersion.
- the particles of ground material M then have a size of less than 50 ⁇ m or else a size ranging from 0.05 to 50 ⁇ m or else a size of less than 10 ⁇ m, preferably less than 5 ⁇ m or 2 ⁇ m, more preferably less than 1 ⁇ m or less than 0.5 ⁇ m.
- the suspension S has a Brookfield viscosity, measured after preparation and at 100 rpm and at 25° C., of less than 1000 mPa.s, preferably less than 800 mPa.s, more preferably less than 500 mPa.s or 400 mPa.s.
- the suspension S has a Brookfield viscosity, measured at 100 rpm at 25° C. after standing for 24 hours at 60° C. and stirring at 100 rpm, of less than 1000 mPa. s, preferably less than 800 mPa.s, more preferably less than 500 mPa.s or 400 mPa.s.
- the suspension S implements a single material M or two or three materials M. More preferably, the suspension S implements a single material M.
- the material M is synthetic or of natural origin.
- material M is chosen from alkaline earth metal carbonate, more preferably calcium carbonate (natural calcium carbonate or precipitated calcium carbonate), strontium carbonate, magnesium carbonate, barium carbonate, dolomite, kaolin, titanium dioxide, talc, lime, calcium sulphate, barium sulphate.
- material M is chosen from natural calcium carbonate, precipitated calcium carbonate, magnesium carbonate, dolomite, kaolin, titanium dioxide, talc, lime.
- the dry extract of the suspension S is greater than 60% by weight, preferably greater than 70% by weight or greater than 75% by weight. Also preferably according to the invention, the dry extract of the suspension S is between 60% by weight and 80% by weight, preferably between 70% by weight and 80% by weight or between 75% by weight and 80 % in weight.
- the dry extract of the suspension is measured by weighing a quantity of 100 g of suspension from which the water and the substances volatile at room temperature are separated, for example by heating.
- the suspension S is prepared in the presence of an aqueous dispersion which comprises the a-sulfonated polymer P.
- the polymer P is chosen from an a-co-polymer PI. disulfonated, P2 ⁇ -monosulfonated polymer and combinations thereof.
- the polymer P is implemented in an amount by dry weight ranging from 0.02% by weight to 5% by weight, preferably from 0.05% by weight to 2% by weight, more preferably from 0.1% by weight to 1.5% by weight relative to the quantity by dry weight of mineral matter M.
- the polymer P is prepared by means of the monomer A.
- the monomer A is chosen from acrylic acid, an acrylic acid salt and combinations thereof.
- monomer A can be combined with at least one other monomer chosen from vinyl acetate, methyl acrylate, ethyl acrylate, hydroxyethyl methacrylate, hydroxyethyl acrylate, hydroxypropyl methacrylate, hydroxypropyl acrylate, 2-acrylamido-2-methylpropane sulfonic acid (AMPS), maleic acid, maleic anhydride, itaconic acid and combinations thereof.
- AMPS 2-acrylamido-2-methylpropane sulfonic acid
- the monomer A is chosen from acrylic acid, an acid salt and their combinations, combined with at least one other monomer chosen from vinyl acetate, methyl acrylate, ethyl acrylate, hydroxy ethyl methacrylate, hydroxy ethyl acrylate , hydroxypropylmethacrylate, hydroxypropylacrylate, acid
- AMPS 2-acrylamido-2-methylpropane sulfonic
- maleic acid maleic anhydride
- maleic anhydride itaconic acid and combinations thereof.
- monomer A can be combined with another monomer which is different from maleic acid and maleic anhydride.
- the polymer P is prepared in the presence of at least one compound T comprising sulfur IV.
- compound T is chosen from lithium hydrogen sulphite, sodium hydrogen sulphite, potassium hydrogen sulphite, ammonium hydrogen sulphite, calcium di(hydrogen sulphite), magnesium di(hydrogen sulfite) and combinations thereof.
- the compound T is a mono-hydrogen sulphite. Sodium hydrogen sulphite or sodium bisulphite is very particularly preferred.
- the polymerization reaction is carried out at a temperature above 30°C and below 100°C, preferably below 90°C, more preferably below 80°C or 75°C.
- polymer A is prepared in the presence of at least one initiator compound.
- the initiator compound is chosen from a peroxide (for example hydrogen peroxide, hydroperoxide of /c/V-butyl), a persulfate (for example sodium persulfate, ammonium persulfate, potassium persulfate), their combinations and their combinations with a metal salt, preferably a metal salt chosen from an iron salt (for example Fe II or Fe III), a copper salt (for example Cu I or Cu II) and combinations thereof.
- the polymer P is partially or totally neutralized by means of a monovalent ion.
- the carboxylic groups of the polymer P can be partially neutralized at a rate of 70 to 97% molar, preferably at a rate of 90 to 95% molar.
- the polymer P is partially non-neutralized.
- the polymer P is totally neutralized.
- the monovalent ion is chosen from K + , Na + , Li + , NH 4 + and their combinations.
- the particularly preferred ion is Na + .
- the polymer P can be neutralized by means of at least one compound chosen from NaOH, KOH, LiOH and ammonium derivatives.
- the polymer P has a weight-average molecular mass Mw (measured by CES) of less than 20,000 g/mol, preferably less than 15,000 g/mol, less than 10,000 g/mol, more preferably less than 7000 g/mol or less than 6000 g/mol.
- the polymer P generally has a weight-average molecular mass Mw (measured by CES) greater than 1000 g/mol or greater than 1200 g/mol.
- the polymer P has a polydispersity index IP (measured by CES) of less than 4 or ranging from 1.2 to 4 or from 1.5 to 4; from 1.2 to 3 or from 1.5 to 3; from 1.2 to 2.5 or even from 1.5 to 2.5.
- IP polydispersity index
- the weight or molecular mass of the polymer P is determined by Steric Exclusion Chromatography (CES) or in English “Size Exclusion Chromatography” (SEC).
- CES Steric Exclusion Chromatography
- SEC Size Exclusion Chromatography
- a test portion of the polymer dispersion corresponding to 90 mg of dry matter is introduced into a 10 mL bottle.
- Mobile phase supplemented with 0.04% dimethylformamide (DMF), is added to a total mass of 10 g.
- the composition of this mobile phase is as follows: NaHCOs: 0.05 mol/L, NaNOs: 0.1 mol/L, triethanolamine: 0.02 mol/L, NaNi: 0.03% by weight.
- the CES chain is made up of a Waters 510 type isocratic pump, the flow rate of which is set at 0.8 mL/min, a Waters 717+ sample changer, an oven containing a Guard type precolumn Column Ultrahydrogel Waters 6 cm long and 40 mm inside diameter, followed by a linear column of Ultrahydrogel Waters type 30 cm long and 7.8 mm inside diameter. Detection is ensured by means of a differential refractometer of the RI Waters 410 type. The oven is brought to a temperature of 60° C. and the refractometer is brought to a temperature of 45° C.
- the CES device is calibrated with a series of sodium polyacrylate standards supplied by Polymer Standard Service with a peak apex molecular weight between 900 and 2,250,000 g/mol and a polydispersity index between 1.4 and 1 ,7.
- the calibration curve is linear and takes into account the correction obtained using the flow marker: dimethylformamide (DMF).
- the acquisition and processing of the chromatogram are carried out using the PSS WinGPC Scientific v 4.02 software.
- the chromatogram obtained is integrated in the zone corresponding to molecular weights greater than 250 g/mol.
- the molar quantity of sulfur compound T present within the suspension S is between 1% and 15%, preferably between 1.5% and 12 %, relative to the total molar amount of monomers used. More preferably according to the invention, the molar quantity of sulfur compound T present within the suspension S, preferably the molar quantity of sulfur IV, is between 1% and 15%, preferably between 1.5% and 12%, relative to the total molar amount of unsaturated groups of the monomers used.
- the suspension S comprises at least one compound B chosen from a sulpho-carboxylic acid, a sulpho-carboxylic acid salt and combinations thereof.
- compound B is chosen from sulfo-carboxy-aromatic acids and sulfo-carboxy-alkyl acids, in particular 3-sulfopropionic acid, 3-sulfo-2-methyl-propionic acid, sulpho-succinic acid, their salts and their combinations.
- the salts of compound B are generally sodium salt, potassium salt, lithium salt, calcium salt, magnesium salt or ammonium salt.
- the salts of compound B are sodium salt, potassium salt, lithium salt or ammonium salt.
- the molar quantity of compound B present within the suspension S is less than 25% relative to the molar quantity of sulfur IV.
- the molar amount of compound B present within the suspension S is less than 20% or more preferably less than 15% or 12% relative to the molar amount of sulfur IV.
- the molar quantity of compound B present within the suspension S is greater than 0.2% relative to the molar quantity of sulfur IV.
- the molar amount of compound B is greater than 2% or 5% relative to the molar amount of sulfur IV.
- the molar quantity of compound B present within the suspension S relative to the molar quantity of sulfur IV is therefore generally comprised within the ranges of 0.2% to 25%, from 2% to 25%, 5% to 25%, 0.2% to 20%, 2% to 20%, 5% to 20%, 0.2% to 15%, 2% to 15%, 5% to 15%, 0.2% to 12%, 2% to 12%, 5% to 12%.
- the polymer P is prepared in the absence of phosphorus compound.
- the polymer P is prepared in the absence of a compound comprising phosphorus in oxidation state I, in particular in the absence of hypophosphorous acid, sodium hypophophite, potassium hypophophite, lithium, ammonium hypophophite, calcium hypophophite and magnesium hypophophite; or alternatively in the absence of a compound comprising phosphorus in oxidation state III, in particular in the absence of phosphorous acid and of phosphorous acid salt.
- the invention also relates to the preparation of the suspension S.
- the invention provides a method for preparing an aqueous suspension S comprising the dispersion, optionally the grinding, in water of at least one mineral material M in the presence of an aqueous dispersion comprising: a) at least one a-sulfonated polymer P prepared in water and in the absence of phosphorus compound, by a polymerization reaction of at least one monomer A chosen from acrylic acid, methacrylic acid, a salt of acrylic acid, a salt of methacrylic acid and their combinations, in the presence of at least one initiator compound and at least one sulfur compound T comprising sulfur in oxidation state IV, and totally or partially neutralized only by means of at least one monovalent ion, b) at least one compound B chosen from a sulpho-carboxylic acid, a sulpho-carboxylic acid salt and combinations thereof, present in a molar amount of less than 25% relative to the molar amount of sulfur IV.
- the preparation of the suspension S according to the invention uses the aqueous dispersion of a-sulfonated polymer P as an agent for dispersing or grinding the mineral matter M.
- the invention also relates to this agent.
- the invention provides a dispersing or grinding agent comprising an aqueous dispersion comprising: a) at least one P a-sulfonated polymer prepared in water and in the absence of phosphorus compound, by a polymerization reaction of at least one monomer A chosen from acrylic acid, methacrylic acid, a salt of acrylic acid, a salt of methacrylic acid and combinations thereof, in the presence of at least one initiator compound and at least one sulfur compound T comprising sulfur in oxidation state IV, and totally or partially neutralized only by means of at least one monovalent ion, b) at least one compound B chosen from a sulpho-carboxylic acid, a sulpho-carboxylic acid salt and combinations thereof , present in a molar amount of less than 25% relative to the molar amount of sulfur IV.
- the invention also provides a method for improving the efficiency of the dispersion or the grinding in water of at least at least one mineral material M comprising the use, during the dispersion, respectively the grinding, of an aqueous dispersion comprising at least one P a-sulfonated polymer prepared in water and in the absence of phosphorus compound, by a polymerization reaction of at least one monomer A chosen from acrylic acid, methacrylic acid, a salt of acrylic acid, a salt of methacrylic acid and combinations thereof, in the presence of at least one initiator compound and of at least one sulfur compound T comprising sulfur in oxidation state IV, and totally or partially neutralized only by means of at least one monovalent ion, having a reduced content of compound B chosen from a sulfo-carboxylic acid, a sulfo acid salt -carboxylic and their combinations, preferably comprising compound B in a
- the aqueous suspension S obtained by virtue of the invention has particularly advantageous properties and it can be used in numerous technical fields, in particular for the preparation of paper.
- the invention provides a method for preparing a papermaking mass filler composition or a papermaking coating composition comprising the preparation of an aqueous suspension S of mineral particles prepared by dispersion, optionally grinding, in water of at least one mineral material M in the presence of an aqueous dispersion comprising: a) at least one a-sulfonated polymer P prepared in water and in the absence of phosphorus compound, by a polymerization reaction d at least one monomer A chosen from acrylic acid, methacrylic acid, a salt of acrylic acid, a salt of methacrylic acid and combinations thereof, in the presence of at least one initiator compound and at least one sulfur compound T comprising sulfur in oxidation state IV, and totally or partially neutralized only by means of at least one monovalent ion, b) at least one compound B chosen from a sulpho-carboxylic acid
- This paper preparation method comprises the use of a suspension S according to the invention.
- the aqueous suspension S obtained by virtue of the invention can also be used for the preparation of a coating composition, in particular a varnish or a paint.
- the invention provides a method for preparing a coating composition comprising:
- an aqueous suspension S of mineral particles prepared by grinding in water of at least one mineral material M in the presence of an aqueous dispersion comprising: a) at least one a-sulfonated polymer P prepared in the water and in the absence of phosphorus compound, by a polymerization reaction of at least one monomer A chosen from acrylic acid, methacrylic acid, a salt of acrylic acid, a salt of methacrylic acid and combinations thereof, in the presence of at least one initiator compound and at least one sulfur compound T comprising sulfur in oxidation state IV, and totally or partially neutralized by means of a combination of at least one monovalent ion and at least one ion divalent, b) at least one compound B chosen from a sulpho-carboxylic acid, a sulpho-carboxylic acid salt and combinations thereof, present in a molar amount of less than 25% relative to the molar amount of sulfur IV, * mixing the suspension S with at least one binder compound, optionally with at
- the coating composition according to the invention comprises:
- an aqueous suspension S of mineral particles prepared by grinding in water of at least one mineral material M in the presence of an aqueous dispersion comprising: a) at least one a-sulfonated polymer P prepared in water and in l absence of phosphorus compound, by a polymerization reaction of at least one monomer A chosen from acrylic acid, methacrylic acid, an acrylic acid salt, a methacrylic acid salt and combinations thereof, in the presence of at least one initiator compound and at least one sulfur compound T comprising sulfur in oxidation state IV, and totally or partially neutralized by means of a combination of at least one monovalent ion and at least one divalent ion, b) at least one compound B chosen from a sulpho-carboxylic acid, a sulpho-carboxylic acid salt and combinations thereof, present in a molar amount of less than 25% relative to the molar amount of sulfur IV,
- the invention also provides a method of preparing a coating comprising the application to a substrate of a coating composition according to the invention.
- the particular, advantageous or preferred characteristics of the suspension S according to the invention define methods for its preparation, methods which use it as well as dispersing or grinding agents which are also particular, advantageous or preferred. .
- Compound B and the amount of compound B (molar % relative to the molar amount of sulfur IV of compound T used) included in each polymer dispersion are determined by assaying the sulfate ions and by 'H NMR and 13 NMR analysis. C of the sulphonated groups of the polymer P and of the compound B.
- Sulfate ion levels in polymer dispersions are determined by ion chromatography.
- a test portion of the polymer dispersion of approximately 80 mg is introduced into a 15 mL bottle.
- Mobile phase is added, up to a total mass of 15 g.
- the composition of the mobile phase is as follows: sodium carbonate: 0.009 mol/L.
- the ion chromatography chain for anion dosage is made up of a Dionex Aquion type ion chromatography system with integrated degasser, the flow rate of which is set at 1 mL/min, containing a chemical suppressor, an AG9-HC precolumn, a precolumn CG3 metal trap, an NG1 guard column and an AG9-HC column.
- Detection is ensured by means of a conductometric detector.
- the ion chromatography device is calibrated with a standard series of sodium sulfate solutions.
- the calibration range is between 0.5 and 100 ppm.
- the calibration curve is linear.
- An automatic dilution of the samples by the device makes it possible to be in the calibration range.
- the acquisition and processing of the chromatogram are carried out using the Chromeleon 7.2.10 software.
- the 3 H NMR and 13 C NMR analyzes are carried out using a Bruker AV III HD 500 spectrometer equipped with a 5 mm BBI probe.
- the polymer samples were dissolved in deuterated water and examined by 1 H NMR and 13 C NMR via the 2D experiments: single-range and long-range 1 H / 13 C correlations.
- the polymer dispersions P1 to P4 according to the invention comprise 3-sulfopropionic acid as compound B.
- the results are presented in Table 1.
- BL 200 - Omya is prepared in the presence of a polymer P according to the invention by means of a grinder (Dyno Mill type KDL pilot 1.4 L) containing 2,750 g of ceramic balls (ER 120 S from 0.6 mm to 1.0 mm in diameter - Saint Gobain).
- the grinding conditions are adjusted in order to obtain a suspension of mineral matter particles of the desired particle size.
- the concentration of the ground suspension is 76% +/- 1%.
- the quantity of polymer introduced into the system is 0.65% by weight (dry polymer/dry calcium carbonate) in order to reach the desired particle size (90% +/- 2% of the particles ⁇ 2 ⁇ m).
- This suspension is then characterized by a particle size measurement, by a Brookfield viscosity measurement (10 rpm and 100 rpm) and by a stability test.
- the stability test consists of measuring the Brookfield viscosity of the ground suspension after a rest period of 24 hours at a temperature of 60°C +/- 2°C, before stirring (at 100 rpm) and after stirring (at 10 rpm and 100 rpm).
- the particle size characteristics are determined using a SediGraph III5120 device (Micromeritics, USA).
- the particle size distribution of the suspensions of particles of mineral matter is measured by determining the percentage mass fraction of a population of particles whose equivalent spherical diameter is less than 1 ⁇ m or indeed less than 2 ⁇ m (esd ⁇ 1 ⁇ m or else esd ⁇ 2 ⁇ m, expressed in %). These measurements are carried out for an aqueous suspension of particles of mineral matter diluted to a concentration of approximately 33 g of dry matter per liter of solution and comprising an aqueous dispersion of polymer P at a concentration of 1.6 g of dry polymer. Each sample is dispersed and sonicated before measurement.
- Brookfield viscosities at 10 rpm and at 100 rpm (mPa.s) of the aqueous suspensions of particles of mineral matter are measured at 25°C +/- 2°C after grinding (VB0) and after 24 hours of rest (at 60° C. +/- 2° C.) (VB24) then after 24 hours and after stirring (VB24a), using a Brookfield DVIII viscometer equipped with a suitable 2 to 5 module.
- the polymers used and the results obtained are shown in Table 2.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Paints Or Removers (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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EP22822624.7A EP4437179A1 (fr) | 2021-11-25 | 2022-11-24 | Suspension minérale stabilisée par dispersion |
US18/709,676 US20250002726A1 (en) | 2021-11-25 | 2022-11-24 | Dispersion-stabilised mineral suspension |
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FR2112481A FR3129298A1 (fr) | 2021-11-25 | 2021-11-25 | Suspension minérale stabilisée par dispersion |
FRFR2112481 | 2021-11-25 |
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WO2023094736A1 true WO2023094736A1 (fr) | 2023-06-01 |
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US (1) | US20250002726A1 (fr) |
EP (1) | EP4437179A1 (fr) |
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WO (1) | WO2023094736A1 (fr) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2007077484A2 (fr) | 2005-12-30 | 2007-07-12 | Coatex S.A.S. | Utilisation d'agents de co-broyage dans un procede de fabrication de carbonates de calcium naturel et precipite co-broyes, suspensions et pigments secs obtenus et leurs utilisations |
WO2008010055A1 (fr) | 2006-07-12 | 2008-01-24 | Coatex S.A.S. | Agent de dispersion et/ou d'aide au broyage pour dispersion et suspension aqueuse de matieres minerales, dispersion et suspension obtenues et leurs utilisations |
-
2021
- 2021-11-25 FR FR2112481A patent/FR3129298A1/fr active Pending
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2022
- 2022-11-24 WO PCT/FR2022/000120 patent/WO2023094736A1/fr active Application Filing
- 2022-11-24 US US18/709,676 patent/US20250002726A1/en active Pending
- 2022-11-24 EP EP22822624.7A patent/EP4437179A1/fr active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007077484A2 (fr) | 2005-12-30 | 2007-07-12 | Coatex S.A.S. | Utilisation d'agents de co-broyage dans un procede de fabrication de carbonates de calcium naturel et precipite co-broyes, suspensions et pigments secs obtenus et leurs utilisations |
US20120302689A1 (en) * | 2005-12-30 | 2012-11-29 | Christian Jacquemet | Use of co-grinding agents in a process to manufacture co-ground natural and precipitated calcium carbonates, suspensions and dry pigments obtained and their uses |
WO2008010055A1 (fr) | 2006-07-12 | 2008-01-24 | Coatex S.A.S. | Agent de dispersion et/ou d'aide au broyage pour dispersion et suspension aqueuse de matieres minerales, dispersion et suspension obtenues et leurs utilisations |
US20090209692A1 (en) * | 2006-07-12 | 2009-08-20 | Coatex S.A.S. | Dispersing and/ or grinding aid agent for dispersion and aqueous suspension of mineral materials, dispersion and suspension obtained and use thereof |
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WO2023094736A8 (fr) | 2024-05-30 |
US20250002726A1 (en) | 2025-01-02 |
FR3129298A1 (fr) | 2023-05-26 |
EP4437179A1 (fr) | 2024-10-02 |
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