NO129262B - - Google Patents
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- Publication number
- NO129262B NO129262B NO04748/70A NO474870A NO129262B NO 129262 B NO129262 B NO 129262B NO 04748/70 A NO04748/70 A NO 04748/70A NO 474870 A NO474870 A NO 474870A NO 129262 B NO129262 B NO 129262B
- Authority
- NO
- Norway
- Prior art keywords
- oxygen
- chlorine
- treated
- chlorine dioxide
- alkaline
- Prior art date
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 44
- 239000001301 oxygen Substances 0.000 claims description 44
- 229910052760 oxygen Inorganic materials 0.000 claims description 44
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 42
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 28
- 239000000460 chlorine Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 23
- 239000004155 Chlorine dioxide Substances 0.000 claims description 22
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 22
- 238000004061 bleaching Methods 0.000 claims description 21
- 229910052801 chlorine Inorganic materials 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 16
- 239000012978 lignocellulosic material Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 8
- 239000007900 aqueous suspension Substances 0.000 claims description 7
- 229910001902 chlorine oxide Inorganic materials 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 7
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 6
- 229910001882 dioxygen Inorganic materials 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 4
- 238000011282 treatment Methods 0.000 description 28
- 239000002351 wastewater Substances 0.000 description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 14
- 238000006243 chemical reaction Methods 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 7
- 239000007844 bleaching agent Substances 0.000 description 7
- 239000001913 cellulose Substances 0.000 description 7
- 229920002678 cellulose Polymers 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000003513 alkali Substances 0.000 description 6
- 238000005660 chlorination reaction Methods 0.000 description 6
- 239000002655 kraft paper Substances 0.000 description 6
- 229910021653 sulphate ion Inorganic materials 0.000 description 6
- 238000011084 recovery Methods 0.000 description 5
- 229920005610 lignin Polymers 0.000 description 4
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 4
- 239000001095 magnesium carbonate Substances 0.000 description 4
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 3
- 239000000347 magnesium hydroxide Substances 0.000 description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 3
- 239000000395 magnesium oxide Substances 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-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
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- VGVRPFIJEJYOFN-UHFFFAOYSA-N 2,3,4,6-tetrachlorophenol Chemical class OC1=C(Cl)C=C(Cl)C(Cl)=C1Cl VGVRPFIJEJYOFN-UHFFFAOYSA-N 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 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 1
- 238000003723 Smelting Methods 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 238000010960 commercial process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- -1 however Chemical compound 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA70450 | 1969-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO129262B true NO129262B (es) | 1974-03-18 |
Family
ID=4086085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO04748/70A NO129262B (es) | 1969-12-19 | 1970-12-10 |
Country Status (10)
| Country | Link |
|---|---|
| AT (1) | AT302013B (es) |
| CA (1) | CA897361A (es) |
| DE (1) | DE2061526C3 (es) |
| FI (1) | FI49994C (es) |
| FR (1) | FR2071947B1 (es) |
| GB (1) | GB1342580A (es) |
| NO (1) | NO129262B (es) |
| SE (1) | SE369746B (es) |
| SU (1) | SU366622A3 (es) |
| ZA (1) | ZA708076B (es) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2416297A1 (fr) * | 1978-01-31 | 1979-08-31 | Europeen Cellulose | Procede anti-polluant de blanchiment de pate a papier |
| FR2432574A1 (fr) * | 1978-08-01 | 1980-02-29 | Europeen Cellulose | Procede de blanchiment de pate a papier |
| FI67241B (fi) * | 1981-06-10 | 1984-10-31 | Aga Ab | Saett foer blekning av cellulosahaltiga material |
| WO1983000887A1 (en) * | 1981-09-04 | 1983-03-17 | Weyerhaeuser Co | Method of treating pulp with plural oxygen stages |
| NZ237019A (en) * | 1990-02-19 | 1992-11-25 | Amcor Ltd | Bleaching paper pulp by initially treating with oxygen and/or hydrogen peroxide and subsequently treating with a bleaching agent without intervening washing steps |
| FR2670513B1 (fr) * | 1990-12-18 | 1993-02-19 | Centre Tech Ind Papier | Procede de blanchiment des pates papetieres chimiques par traitement a l'oxygene en deux stades. |
| SE9401628L (sv) * | 1994-05-10 | 1995-11-11 | Stora Kopparbergs Bergslags Ab | Förfarande vid syrgasdelignifiering |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1310248A (es) * | 1963-03-06 | |||
| FR1404605A (fr) * | 1964-05-22 | 1965-07-02 | Air Liquide | Perfectionnement à la délignification des pâtes chimiques de cellulose |
| SE334286B (es) * | 1968-12-05 | 1971-04-19 | Mo Och Domsjoe Ab |
-
1969
- 1969-12-19 CA CA897361A patent/CA897361A/en not_active Expired
-
1970
- 1970-11-30 ZA ZA708076*A patent/ZA708076B/xx unknown
- 1970-12-07 FI FI703285A patent/FI49994C/fi active
- 1970-12-10 NO NO04748/70A patent/NO129262B/no unknown
- 1970-12-14 DE DE2061526A patent/DE2061526C3/de not_active Expired
- 1970-12-16 SE SE17087/70A patent/SE369746B/xx unknown
- 1970-12-18 GB GB6027070A patent/GB1342580A/en not_active Expired
- 1970-12-18 FR FR7045905A patent/FR2071947B1/fr not_active Expired
- 1970-12-18 AT AT1142270A patent/AT302013B/de not_active IP Right Cessation
- 1970-12-18 SU SU1601806A patent/SU366622A3/ru active
Also Published As
| Publication number | Publication date |
|---|---|
| CA897361A (en) | 1972-04-11 |
| FR2071947A1 (es) | 1971-09-24 |
| SE369746B (es) | 1974-09-16 |
| GB1342580A (en) | 1974-01-03 |
| DE2061526C3 (de) | 1975-06-05 |
| FR2071947B1 (es) | 1974-04-26 |
| SU366622A3 (es) | 1973-01-16 |
| AT302013B (de) | 1972-09-25 |
| DE2061526A1 (de) | 1971-06-24 |
| FI49994C (fi) | 1975-11-10 |
| DE2061526B2 (es) | 1974-09-19 |
| FI49994B (es) | 1975-07-31 |
| ZA708076B (en) | 1972-07-26 |
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