KR960705740A - 침철광 제조 방법(process for making goethite) - Google Patents
침철광 제조 방법(process for making goethite)Info
- Publication number
- KR960705740A KR960705740A KR1019960702225A KR19960702225A KR960705740A KR 960705740 A KR960705740 A KR 960705740A KR 1019960702225 A KR1019960702225 A KR 1019960702225A KR 19960702225 A KR19960702225 A KR 19960702225A KR 960705740 A KR960705740 A KR 960705740A
- Authority
- KR
- South Korea
- Prior art keywords
- iron
- carbonate
- ferrous
- containing compound
- suspension
- Prior art date
Links
- 229910052598 goethite Inorganic materials 0.000 title claims abstract description 15
- AEIXRCIKZIZYPM-UHFFFAOYSA-M hydroxy(oxo)iron Chemical compound [O][Fe]O AEIXRCIKZIZYPM-UHFFFAOYSA-M 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract 7
- 239000002245 particle Substances 0.000 claims abstract description 9
- 239000004277 Ferrous carbonate Substances 0.000 claims abstract 7
- RAQDACVRFCEPDA-UHFFFAOYSA-L ferrous carbonate Chemical compound [Fe+2].[O-]C([O-])=O RAQDACVRFCEPDA-UHFFFAOYSA-L 0.000 claims abstract 7
- 235000019268 ferrous carbonate Nutrition 0.000 claims abstract 7
- 229960004652 ferrous carbonate Drugs 0.000 claims abstract 7
- 229910000015 iron(II) carbonate Inorganic materials 0.000 claims abstract 7
- 239000003607 modifier Substances 0.000 claims abstract 6
- 230000001590 oxidative effect Effects 0.000 claims abstract 6
- 238000007254 oxidation reaction Methods 0.000 claims abstract 4
- 238000004519 manufacturing process Methods 0.000 claims abstract 2
- 230000003647 oxidation Effects 0.000 claims abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 50
- 229910052742 iron Inorganic materials 0.000 claims 25
- 150000001875 compounds Chemical class 0.000 claims 22
- 239000003513 alkali Substances 0.000 claims 17
- 239000000725 suspension Substances 0.000 claims 13
- 238000006243 chemical reaction Methods 0.000 claims 12
- -1 carbonate compound Chemical class 0.000 claims 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 7
- 239000007789 gas Substances 0.000 claims 7
- 239000001301 oxygen Substances 0.000 claims 7
- 229910052760 oxygen Inorganic materials 0.000 claims 7
- 239000007864 aqueous solution Substances 0.000 claims 6
- 239000002244 precipitate Substances 0.000 claims 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims 5
- 230000032683 aging Effects 0.000 claims 5
- 150000003839 salts Chemical class 0.000 claims 5
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims 4
- 239000001099 ammonium carbonate Substances 0.000 claims 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims 4
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims 3
- 239000000243 solution Substances 0.000 claims 3
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 claims 2
- 229910021575 Iron(II) bromide Inorganic materials 0.000 claims 2
- 229910002651 NO3 Inorganic materials 0.000 claims 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims 2
- 229910019142 PO4 Inorganic materials 0.000 claims 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims 2
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims 2
- MCDLETWIOVSGJT-UHFFFAOYSA-N acetic acid;iron Chemical compound [Fe].CC(O)=O.CC(O)=O MCDLETWIOVSGJT-UHFFFAOYSA-N 0.000 claims 2
- 239000002253 acid Substances 0.000 claims 2
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims 2
- 235000012501 ammonium carbonate Nutrition 0.000 claims 2
- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 claims 2
- 229910000024 caesium carbonate Inorganic materials 0.000 claims 2
- 229940046149 ferrous bromide Drugs 0.000 claims 2
- 229960002089 ferrous chloride Drugs 0.000 claims 2
- 229940076136 ferrous iodide Drugs 0.000 claims 2
- 235000003891 ferrous sulphate Nutrition 0.000 claims 2
- 239000011790 ferrous sulphate Substances 0.000 claims 2
- KEDRKJFXBSLXSI-UHFFFAOYSA-M hydron;rubidium(1+);carbonate Chemical compound [Rb+].OC([O-])=O KEDRKJFXBSLXSI-UHFFFAOYSA-M 0.000 claims 2
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 claims 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims 2
- CKFMJXZQTNRXGX-UHFFFAOYSA-L iron(2+);diperchlorate Chemical compound [Fe+2].[O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O CKFMJXZQTNRXGX-UHFFFAOYSA-L 0.000 claims 2
- DXTCFKRAUYBHRC-UHFFFAOYSA-L iron(2+);dithiocyanate Chemical compound [Fe+2].[S-]C#N.[S-]C#N DXTCFKRAUYBHRC-UHFFFAOYSA-L 0.000 claims 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims 2
- GYCHYNMREWYSKH-UHFFFAOYSA-L iron(ii) bromide Chemical compound [Fe+2].[Br-].[Br-] GYCHYNMREWYSKH-UHFFFAOYSA-L 0.000 claims 2
- BQZGVMWPHXIKEQ-UHFFFAOYSA-L iron(ii) iodide Chemical compound [Fe+2].[I-].[I-] BQZGVMWPHXIKEQ-UHFFFAOYSA-L 0.000 claims 2
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims 2
- 229910052808 lithium carbonate Inorganic materials 0.000 claims 2
- HQRPHMAXFVUBJX-UHFFFAOYSA-M lithium;hydrogen carbonate Chemical compound [Li+].OC([O-])=O HQRPHMAXFVUBJX-UHFFFAOYSA-M 0.000 claims 2
- 235000021317 phosphate Nutrition 0.000 claims 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims 2
- 229910000028 potassium bicarbonate Inorganic materials 0.000 claims 2
- 235000015497 potassium bicarbonate Nutrition 0.000 claims 2
- 239000011736 potassium bicarbonate Substances 0.000 claims 2
- 229910000027 potassium carbonate Inorganic materials 0.000 claims 2
- 235000011181 potassium carbonates Nutrition 0.000 claims 2
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims 2
- 150000004760 silicates Chemical class 0.000 claims 2
- 239000002002 slurry Substances 0.000 claims 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims 2
- DHCDFWKWKRSZHF-UHFFFAOYSA-N sulfurothioic S-acid Chemical compound OS(O)(=O)=S DHCDFWKWKRSZHF-UHFFFAOYSA-N 0.000 claims 2
- DASUJKKKKGHFBF-UHFFFAOYSA-L thallium(i) carbonate Chemical compound [Tl+].[Tl+].[O-]C([O-])=O DASUJKKKKGHFBF-UHFFFAOYSA-L 0.000 claims 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 2
- QTZBTBLHYPSFMG-UHFFFAOYSA-N 5-chloro-3-methylpyridin-2-amine Chemical compound CC1=CC(Cl)=CN=C1N QTZBTBLHYPSFMG-UHFFFAOYSA-N 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 1
- 239000004254 Ammonium phosphate Substances 0.000 claims 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims 1
- 239000004135 Bone phosphate Substances 0.000 claims 1
- UEZVMMHDMIWARA-UHFFFAOYSA-N Metaphosphoric acid Chemical compound OP(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-N 0.000 claims 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims 1
- 229920000388 Polyphosphate Polymers 0.000 claims 1
- 239000004111 Potassium silicate Substances 0.000 claims 1
- 239000004115 Sodium Silicate Substances 0.000 claims 1
- 150000007513 acids Chemical class 0.000 claims 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 claims 1
- 235000019289 ammonium phosphates Nutrition 0.000 claims 1
- 229910052792 caesium Inorganic materials 0.000 claims 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 claims 1
- ZMCUDHNSHCRDBT-UHFFFAOYSA-M caesium bicarbonate Chemical compound [Cs+].OC([O-])=O ZMCUDHNSHCRDBT-UHFFFAOYSA-M 0.000 claims 1
- 230000000536 complexating effect Effects 0.000 claims 1
- 210000001787 dendrite Anatomy 0.000 claims 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-N diphosphoric acid Chemical compound OP(O)(=O)OP(O)(O)=O XPPKVPWEQAFLFU-UHFFFAOYSA-N 0.000 claims 1
- DWYMPOCYEZONEA-UHFFFAOYSA-N fluorophosphoric acid Chemical compound OP(O)(F)=O DWYMPOCYEZONEA-UHFFFAOYSA-N 0.000 claims 1
- TVZISJTYELEYPI-UHFFFAOYSA-N hypodiphosphoric acid Chemical compound OP(O)(=O)P(O)(O)=O TVZISJTYELEYPI-UHFFFAOYSA-N 0.000 claims 1
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 claims 1
- 229910001386 lithium phosphate Inorganic materials 0.000 claims 1
- 229910052912 lithium silicate Inorganic materials 0.000 claims 1
- 235000011007 phosphoric acid Nutrition 0.000 claims 1
- 239000001205 polyphosphate Substances 0.000 claims 1
- 235000011176 polyphosphates Nutrition 0.000 claims 1
- 229910000160 potassium phosphate Inorganic materials 0.000 claims 1
- 235000011009 potassium phosphates Nutrition 0.000 claims 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims 1
- 229910052913 potassium silicate Inorganic materials 0.000 claims 1
- 235000019353 potassium silicate Nutrition 0.000 claims 1
- 229940005657 pyrophosphoric acid Drugs 0.000 claims 1
- 229910052701 rubidium Inorganic materials 0.000 claims 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 claims 1
- WPFGFHJALYCVMO-UHFFFAOYSA-L rubidium carbonate Chemical compound [Rb+].[Rb+].[O-]C([O-])=O WPFGFHJALYCVMO-UHFFFAOYSA-L 0.000 claims 1
- 229910000026 rubidium carbonate Inorganic materials 0.000 claims 1
- 239000001488 sodium phosphate Substances 0.000 claims 1
- 229910000162 sodium phosphate Inorganic materials 0.000 claims 1
- 235000011008 sodium phosphates Nutrition 0.000 claims 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical group [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims 1
- 229910052911 sodium silicate Inorganic materials 0.000 claims 1
- TWQULNDIKKJZPH-UHFFFAOYSA-K trilithium;phosphate Chemical compound [Li+].[Li+].[Li+].[O-]P([O-])([O-])=O TWQULNDIKKJZPH-UHFFFAOYSA-K 0.000 claims 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims 1
- 239000000543 intermediate Substances 0.000 abstract 1
- 238000000635 electron micrograph Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
- G11B5/70605—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/06—Ferric oxide [Fe2O3]
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
- G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
- G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
- G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
- G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
- G11B5/70652—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides gamma - Fe2 O3
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/10—One-dimensional structures
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/51—Particles with a specific particle size distribution
- C01P2004/52—Particles with a specific particle size distribution highly monodisperse size distribution
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
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- 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
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- 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
- C01P2006/12—Surface area
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Compounds Of Iron (AREA)
- Hard Magnetic Materials (AREA)
Abstract
본 발명은 성장개질제 존재하에서 탄산 제일철 중간체를 산화시키거나 산화도중 산화 가스의 유속을 교대로 변화시키므로써 스핀들-형태의 침철광 입자를 제조하는 방법에 관한 것이다. 따라서, 제조된 침철광 입자는 크기 분포가 좁고, 종횡비가 크고, 덴트라이트가 거의 없다. 상기 특성을 보유하는 본 발명의 침철광 입자는 고밀도 자기 기록 매체의 제조에 적합하다.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 실시예 1에 도시한 바와 같은 본 발명은 한 구체예에 따라 제조된 침철광 입자의 26,000배 확대한 전자 현미경 사진이다.
Claims (10)
- (a) 수용성 철-함유 화합물과 수용성 알칼리 카르보네이트 화합물을 두화합물 사이에서 화학 반응이 발생하기에 충분한 양의 알칼리 카르보네이트를 보유하는 수용액으로 혼합하는 단계(이때, 철-함유 화합물과 알칼리 카르보네이트는 용액내에서 반대이온이 침철광 형성 반응을 방해하지 않는 염이다); (b) 생성된 수용액을 불활성 대기 내에서 철-함유 화합물과 알칼리 카르보네이트 화합물 사이의 반응을 지지하기에 충분한 온도에서 반응시켜 현탁액 내에 침전을 형성하는 단계; (c) 탄산 제일철 중간체가 형성되기에 충분한 시간과 온도에서 현탁액내 침전물을 노화시키는 단계; (d) 덴트라이트가 거의 없는 결정된 스핀들-형태의 침철광 입자를 생성하기에 충분한 온도를 유지하면서 단계(c)에서 생성된 현탁액 내로 산소-함유 가스를 투입하므로써 단계(c)에서 생성된 탄산 제일철 중간체를 산화하는 단계; 및 (e) 가용한 철 현탁액의 20%가 산화되기 전에 단계 (a), (b), (c) 또는 단계 (d)의 반응내로 알칼리성 매질 내에서 안정하고, 제일철과 착물을 형성할 수 있는, 인산염과 규산염으로 구성된 군으로부터 선택되는 성장 개질제로 작용하는 유효량의 수용성 화합물을 투입하는 단계를 포함하는 스핀들-형태의 침철광 입자를 제조하는 방법.
- 제1항에 있어서, 철-함유 화합물이 황상 제일철, 염화 제일철, 아세트산 제일철, 브롬화 제일철, 과염소산 제일철, 요오드화 제일철, 질산 제일철, 티오시안산 제일철 및 티오황산 제일철로 구성된 군으로부터 선택되며, 철이 단계 (b)의 슬러리 1ℓ당 0.1∼0.6mole의 농도로 존재하는 방법.
- 제1항 또는 제2항에 있어서, 알칼리 카르보네이트 화합물이 탄산 나트륨, 탄산 칼륨, 탄산 리튬, 탄산 암모늄, 탄산 세슘, 탄산 루비듐, 탄산 탈륨, 중탄산 나트륨, 중탄산 칼륨, 중탄산 리튬, 중탄산 암모늄, 중탄산 세슘 및 중탄산 루비듐으로 구성된 군으로부터 선택되며, 단계 (b)의 알칼리 카르보네이트 대 철-함유 화합물의 몰비가 1.5 내지 2.5인 방법.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 성장 개질제가 폴리포스페이트, 포스폰산, 모노플루오로인산, 디플루오로인산, 하이포인산, 메타인산, 오르토인산, 파이로인산, 전술한 산 중 어느 한 산의 수용성 염 및 인산 나트륨, 인산 칼륨, 인산 암모늄 및 인산 리튬으로 구성디는 군으로부터 선택되는 일염기성, 이염기성 또는 삼염기성 염으로 구성되는 군으로부터 선택되는 방법.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 성장 개질제가 규산 나트륨, 규산 칼륨, 규산 리튬 및 규산 암모늄으로 구성되는 군으로부터 선택되는 방법.
- (a) 수용성 철-함유 화합물과 수용성 알칼리 카르보네이트 화합물을 두화합물 사이에서 화학 반응이 발생하기에 충분한 양의 알칼리 카르보네이트를 보유하는 수용액으로 혼합하는 단계(이때, 철-함유 화합물과 알칼리 카르보네이트는 용액내에서 반대이온이 침철광 형성 반응을 방해하지 않는 염이다); (b) 생성된 수용액을 불활성 대기 내에서 철-함유 화합물과 알칼리 카르보네이트 화합물 사이의 반응을 지지하기에 충분한 온도에서 반응시켜 현탁액 내에 침전을 형성하는 단계; (c) 탄산 제일철 중간체가 형성되기에 충분한 시간과 온도에서 현탁액내 침전물을 노화시키는 단계; (d) 산화 반응을 지지하기에 충분한 온도를 유지하면서 단계 (c)에서 생성된 현탁액 내로 산소-함유 가스를 조절된 속도로 투입하므로써 단계(c)에서 생성된 탄산 제일철 중간체를 산화하는 단계(이 때, 상기 가스는 적어도 2단계로 투입되어, 유속 F1으로 투입된 산소 모두가 철-함유 화합물가 반응한다고 가정하는 경우, 제1단계에서 산소-함유 가스의 제1유속 F1을 유지하면서 상기 현탁액내 가용한 철의 30% 이하를 속도 R로 산화하고, 후속 단계(들)에서 F1보다 점진적으로 빠른 가스 유속으로 가용한 철의 잔류 부분을 산화하는데, 이때 R은 1시간당, 총 반응 부피 1ℓ당 철 0.06mole 이상으로 하므로써 덴트라이트가 거의 없는 결정성 스핀들-형태의 침철광 입자를 수득한다)를 포함하는 스핀들-형태의 침철광 입자를 형성하는 제조하는 방법.
- 제6항에 있어서, 철-함유 화합물이 황상 제일철, 염화 제일철, 아세트산 제일철, 브롬화 제일철, 과염소산 제일철, 요오드화 제일철, 질산 제일철, 티오시안산 제일철 및 티오황산 제일철로 구성된 군으로부터 선택 되며, 단계 (b)의 슬러리 1ℓ당 철이 0.1∼0.6mole의 농도로 존재하는 방법.
- 제6항에 있어서, 알칼리 카르보네이트 화합물이 탄산 나트륨, 탄산 칼륨, 탄산 리튬, 탄산 암모늄, 탄산 세슘, 탄산 루비듐, 탄산 탈륨, 중탄산 나트륨, 중탄산 칼륨, 중탄산 리튬, 중탄산 암모늄, 중탄산 세슘 및 중탄산 루비듐으로 구성된 군으로부터 선택되며, 단계 (b)의 알칼리 카르보네이트 대 철-함유 화합물이 몰비가 1.5 내지 2.5인 방법.
- 제6항에 있어서, (e) 가용한 철 20중량%가 산화되기 전에 단계 (a),(b),(c) 또는 단계 (d)의 반응으로 알칼리성 매질 내에서 안정하고, 제일철과 착물을 형성할 수 있는, 인산염과 규산염으로 구성된 군으로부터 선택되는 성장 개질제로 작용하는 유효량의 수용성 화합물을 투입하는 단계를 추가로 포함하는 방법.
- (a) 수용성 철-함유 화합물과 수용성 알칼리 카르보네이트 화합물을 두화합물 사이에서 화학 반응이 발생하기에 충분한 양의 알칼리 카르보네이트를 보유하는 수용액으로 혼합하는 단계(이때, 철-함유 화합물과 알칼리 카르보네이트는 용액내에서 반대이온이 침철광 형성 반응을 방해하지 않는 염이다); (b) 생성된 수용액을 불활성 대기 내에서 철-함유 화합물과 알칼리 카르보네이트 화합물 사이의 반응을 지지하기에 충분한 온도에서 반응시켜 현탁액 내에 침전을 형성하는 단계; (c) 탄산 제일철 중간체가 형성되기에 충분한 시간과 온도에서 현탁액내 침전물을 노화시키는 단계; (d) 산화 반응을 지지하기에 충분한 온도를 유지하면서 단계 (c)에서 수득한 현탁액 내로 산소-함유 가스를 조절된 유속도로 투입하므로써 단계(c)에서 수득한 탄산 제일철 중간체를 산화하는 단계(이 때, 유속 G1으로 투입된 모든 산소가 철-함유 화합물가 반응한다고 가정하는 경우, 유속 G1을 유지하면서 상기 현탁액내 가용한 철 5%만이 산화된다); (e) 노화하지 않고 생성한 침철광의 크기 분포와 비교하여 완성된 침철광의 크기 분포를 실질적으로 감소시키기에 충분한 시간 동안 산소 첨가 없이 상기 현탁액을 노화하는 단계; 및 (f) 유속 G1과 동일하거나 그 1/2인 G2로 가용한 철의 잔류 부분을 산화시키므로써 덴트라이트가 거의 없는 결정성 스핀들 형태의 침철광 입자를 수득하는 단계를 포함하는 스핀들-형태의 침철광 입자를 제조하는 방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14433493A | 1993-11-01 | 1993-11-01 | |
| US08/144,334 | 1993-11-01 | ||
| PCT/US1994/010711 WO1995012548A1 (en) | 1993-11-01 | 1994-09-22 | Process for making goethite |
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| Publication Number | Publication Date |
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| KR960705740A true KR960705740A (ko) | 1996-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1019960702225A KR960705740A (ko) | 1993-11-01 | 1994-09-22 | 침철광 제조 방법(process for making goethite) |
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| US (1) | US5650131A (ko) |
| EP (1) | EP0726878B1 (ko) |
| JP (1) | JPH09504503A (ko) |
| KR (1) | KR960705740A (ko) |
| CA (1) | CA2175466A1 (ko) |
| DE (1) | DE69418472D1 (ko) |
| WO (1) | WO1995012548A1 (ko) |
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| JP2704537B2 (ja) * | 1988-12-22 | 1998-01-26 | 戸田工業株式会社 | 紡錘形を呈したゲータイト粒子粉末の製造法 |
| JP2704539B2 (ja) * | 1988-12-26 | 1998-01-26 | 戸田工業株式会社 | 紡錘形を呈したゲータイト粒子粉末の製造法 |
| JP2743000B2 (ja) * | 1988-12-26 | 1998-04-22 | 戸田工業株式会社 | 紡錘形を呈したゲータイト粒子粉末及びその製造法 |
| JP2704540B2 (ja) * | 1988-12-29 | 1998-01-26 | 戸田工業株式会社 | 紡錘形を呈した磁性酸化鉄粒子粉末の製造法 |
| JP2925561B2 (ja) * | 1988-12-29 | 1999-07-28 | 戸田工業株式会社 | 紡錘形を呈した磁性酸化鉄粒子粉末 |
| EP0377933B1 (en) * | 1988-12-29 | 1995-07-19 | Toda Kogyo Corp. | Magnetic iron oxide particles and method of producing the same |
| US5137783A (en) * | 1989-04-07 | 1992-08-11 | Toda Kogyo Corporation | Acicular magnetic metal particles containing iron as main ingredient and process for producing the same |
| JPH02275523A (ja) * | 1989-04-18 | 1990-11-09 | Canon Inc | 印刷装置 |
| JP2840779B2 (ja) * | 1990-01-29 | 1998-12-24 | 戸田工業株式会社 | 針状晶ゲータイト粒子粉末の製造法 |
| JPH04311A (ja) * | 1990-04-16 | 1992-01-06 | Hitachi Maxell Ltd | 金属磁性粉末の製造方法 |
| EP0466338B1 (en) * | 1990-06-26 | 1995-12-20 | Toda Kogyo Corp. | Spindle-shaped magnetic iron based alloy particles and process for producing the same |
-
1994
- 1994-09-22 KR KR1019960702225A patent/KR960705740A/ko not_active Application Discontinuation
- 1994-09-22 WO PCT/US1994/010711 patent/WO1995012548A1/en active IP Right Grant
- 1994-09-22 CA CA002175466A patent/CA2175466A1/en not_active Abandoned
- 1994-09-22 EP EP94928181A patent/EP0726878B1/en not_active Expired - Lifetime
- 1994-09-22 JP JP7513203A patent/JPH09504503A/ja active Pending
- 1994-09-22 DE DE69418472T patent/DE69418472D1/de not_active Expired - Lifetime
- 1994-12-19 US US08/359,004 patent/US5650131A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| WO1995012548A1 (en) | 1995-05-11 |
| EP0726878B1 (en) | 1999-05-12 |
| DE69418472D1 (de) | 1999-06-17 |
| EP0726878A1 (en) | 1996-08-21 |
| JPH09504503A (ja) | 1997-05-06 |
| US5650131A (en) | 1997-07-22 |
| CA2175466A1 (en) | 1995-05-11 |
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| WITN | Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid |