KR860003633A - 탄화철 함유 입자와 그의 제법 및 이용 - Google Patents
탄화철 함유 입자와 그의 제법 및 이용 Download PDFInfo
- Publication number
- KR860003633A KR860003633A KR1019850007821A KR850007821A KR860003633A KR 860003633 A KR860003633 A KR 860003633A KR 1019850007821 A KR1019850007821 A KR 1019850007821A KR 850007821 A KR850007821 A KR 850007821A KR 860003633 A KR860003633 A KR 860003633A
- Authority
- KR
- South Korea
- Prior art keywords
- carbon atoms
- iron
- agent containing
- average particle
- iron carbide
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
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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
- G11B5/70668—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 containing a dopant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/20—Carbon compounds
- B01J27/22—Carbides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/90—Carbides
- C01B32/907—Oxycarbides; Sulfocarbides; Mixture of carbides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
-
- 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
-
- 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
- C01P2004/00—Particle morphology
- C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
-
- 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
- C01P2006/42—Magnetic properties
-
- 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
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
-
- 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
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Power Engineering (AREA)
- Carbon And Carbon Compounds (AREA)
- Compounds Of Iron (AREA)
- Hard Magnetic Materials (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
Claims (7)
- 평균축비가 적어도 1.0 및 3.0 이하이고, 평균 입도가 0.1μm 이상, 5μm까지인 탄화철을 함유하는 것을 특징으로 하는 입자.
- (a) 침상으로 옥시수산화철이나 침상 산화철을 탄소원자를 함유하지 않는 환원제와 접촉시키거나 접촉시키지 않는 단계로서,이때 철화합물은 평균축비가 적어도 1.0 및 3.0 이하이고 평균입경이 0.1μm 이상, 5μm이며, (b) 상기(a)의 철화합물은 탄소원자를 함유하는 환원-및-탄화제 또는 그의 탄소원자를 함유하지 않는 환원제와의 혼합물과 접촉시키는 단계, 로 구성된 것을 특징으로 하는, 평균 축비가 적어도 1.0 및 3.0 이하이고, 평균입도가 0.1μm 이상, 5μm까지인 탄화철을 함유하는 입자의 제조방법.
- 제2항에 있어서, 옥시수산화철이 α-, β- 또는γ-FeOOH이고 산화철이 α 또는 γ-Fe2O3또는 Fe3O4인 것을 특징으로 하는 방법.
- 제2항에 있어서 (a)에서의 접촉온도가 200 내지 700℃이고, (b)에서의 접촉온도가 250 내지 400℃인 것을 특징으로 하는 방법.
- 제2항에 있어서, 탄소원자를 함유하는 환원-및-탄화제가 CO, CH3OH, HCOOCH3, 1내지 5개의 탄소원자를 갖는 포화 또는 불포화 지방족 탄화수소 인것을 특징으로 하는 방법.
- 제2항에 있어서, 탄소원자를 함유하지 않는 환원제가 H2인 것을 특징으로 하는 방법.
- 평균축비가 적어도 1.0 및 3.0 이하이고, 평균입도가 0.1μm 이상, 5μm까지인 탄화철을 함유하는 입자를 포함하는 것을 특징으로 하는 자성물질.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59-224968 | 1984-10-25 | ||
JP59224968A JPS61106410A (ja) | 1984-10-25 | 1984-10-25 | 炭化鉄を含有する粒子、その製法及び用途 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR860003633A true KR860003633A (ko) | 1986-05-28 |
KR890003869B1 KR890003869B1 (ko) | 1989-10-05 |
Family
ID=16822027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019850007821A KR890003869B1 (ko) | 1984-10-25 | 1985-10-23 | 탄화철 함유입자와 그의 제법 및 이용 |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0179490B1 (ko) |
JP (1) | JPS61106410A (ko) |
KR (1) | KR890003869B1 (ko) |
CA (1) | CA1328727C (ko) |
DE (1) | DE3576679D1 (ko) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4900464A (en) * | 1985-12-24 | 1990-02-13 | Daikin Industries Ltd. | Particles containing iron carbide |
JPS6395104A (ja) * | 1986-10-06 | 1988-04-26 | Daikin Ind Ltd | Fe↓7C↓3を主成分とする炭化鉄を含有する粒子、その製法及び用途 |
FR2680984B1 (fr) * | 1991-09-06 | 1993-11-05 | Pechiney Recherche | Preparation de catalyseur a partir d'oxydes metalliques par reduction et carburation partielle par les gaz reactionnels. |
JP2727436B2 (ja) * | 1995-05-31 | 1998-03-11 | 川崎重工業株式会社 | 鉄カーバイドの製造方法及び製造装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2535042A (en) * | 1950-01-05 | 1950-12-26 | Ernst M Cohn | Preparation of iron carbides |
US3885023A (en) * | 1973-02-15 | 1975-05-20 | Phillips Petroleum Co | Preparation of iron carbide (Fe{hd 3{b C) |
DE2935444A1 (de) * | 1979-09-01 | 1981-03-19 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von nadelfoermigen ferrimagnetischem eisenoxid |
JPS59199533A (ja) * | 1983-04-25 | 1984-11-12 | Daikin Ind Ltd | 磁性粉末 |
JPS6016808A (ja) * | 1983-07-05 | 1985-01-28 | Daikin Ind Ltd | 炭化鉄を含有する磁性材料 |
DE3469820D1 (en) * | 1983-04-25 | 1988-04-14 | Daikin Ind Ltd | Acicular particulate material containing iron carbide |
-
1984
- 1984-10-25 JP JP59224968A patent/JPS61106410A/ja active Granted
-
1985
- 1985-10-23 KR KR1019850007821A patent/KR890003869B1/ko not_active IP Right Cessation
- 1985-10-23 CA CA000493651A patent/CA1328727C/en not_active Expired - Fee Related
- 1985-10-25 EP EP85113612A patent/EP0179490B1/en not_active Expired - Lifetime
- 1985-10-25 DE DE8585113612T patent/DE3576679D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPS61106410A (ja) | 1986-05-24 |
EP0179490A3 (en) | 1987-10-21 |
KR890003869B1 (ko) | 1989-10-05 |
EP0179490B1 (en) | 1990-03-21 |
EP0179490A2 (en) | 1986-04-30 |
CA1328727C (en) | 1994-04-26 |
DE3576679D1 (de) | 1990-04-26 |
JPH0140765B2 (ko) | 1989-08-31 |
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FPAY | Annual fee payment |
Payment date: 20010928 Year of fee payment: 13 |
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LAPS | Lapse due to unpaid annual fee |