KR860003631A - 탄화철을 함유하는 침상입자의 제조방법 - Google Patents

탄화철을 함유하는 침상입자의 제조방법 Download PDF

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Publication number
KR860003631A
KR860003631A KR1019850007819A KR850007819A KR860003631A KR 860003631 A KR860003631 A KR 860003631A KR 1019850007819 A KR1019850007819 A KR 1019850007819A KR 850007819 A KR850007819 A KR 850007819A KR 860003631 A KR860003631 A KR 860003631A
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South Korea
Prior art keywords
carbon atoms
reducing
agent containing
acicular
iron carbide
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KR1019850007819A
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KR890003867B1 (ko
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가즈오 오까무라
이꾸오 기따무라
히데끼 아오미
사또시 고야마
가쓰시 도꾸나가
Original Assignee
야마다 미노루
다이낀 고오교오 가부시끼 가이샤
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Publication of KR860003631A publication Critical patent/KR860003631A/ko
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Publication of KR890003867B1 publication Critical patent/KR890003867B1/ko

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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
    • 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
    • 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
    • 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
    • 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
    • C01P2006/42—Magnetic properties

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Power Engineering (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Compounds Of Iron (AREA)
  • Hard Magnetic Materials (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

내용 없음

Description

탄화철을 함유하는 침상입자의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (8)

  1. (a) 침상 옥시수산화물 또는 침상 산화철을 탄소를 포함하지 않는 환원제와 접촉시키거나 또는 접촉시키지 않는 단계와, (b) 상기 (a)의 철화합물을 탄소원자를 포함하는 환원-및-탄화제 또는 이것의 탄소원자를 포함하지 않는 환원제의 혼합물과 접촉시키는 단계로 ( (a)에서의 접촉이 행해지지 않을때는 CO를 (b)의 환원-및-탄화제로부터 몰아내는 것을 조건으로) 이루어지는 것을 특징으로 하는 탄화철을 함유하는 침상입자의 제조방법.
  2. 제1항에 있어서, 옥시수산화철 또는 산화철은 α-FeOOH, β-FeOOH, γ- FeOOH, α-Fe2O3, 또는 γ-Fe2O3인 것을 특징으로 하는 탄화철 함유 침상입자의 제조방법.
  3. 제1항에 있어서, 침상 옥시수산화물 또는 침상 산화철을 200 내지 700℃에서 탄소원자를 포함하지 않는 환원제와 접촉시키고 더 나아가서 상기의 철화합물을 250 내지 400℃에서 탄소원자를 함유하는 환원-및-탄화제 또는 이것의 탄소원자를 함유하지 않는 환원제의 혼합물과 접촉시키는 것을 특징으로 하는 탄화철함유 침상입자의 제조방법.
  4. 제3항에 있어서, 탄소원자를 포함하지 않는 환원제는 H2인 것을 특징으로 하는 탄화철함유 침상입자의 제조방법.
  5. 제3항에 있어서, 탄소원자는 포함하지 않는 환원제는 H2이고 탄소원자를 포함하는 환원-및-탄화제는 CO 또는 CO와 H2의 혼합물인 것을 특징으로 하는 탄화철함유 침상입자의 제조방법.
  6. 제1항에 있어서, (a)에서의 접촉이 행해지지 않고 (b)에서의 접촉은 250 내지 400℃에서 행해지는 것을 특징으로 하는 탄화철함유 침상입자의 제조방법.
  7. 제1항에 있어서, 탄소원자를 포함하는 환원-및-탄화제는 1 내지 5개의 탄소원자를 갖는 CH3OH, HCOOH3, 포화 또는 불포화 지방족 탄화수소인 것을 특징으로 하는 탄화철함유 침상입자의 제조방법.
  8. 제1항에 있어서, 탄소원자를 포함하지 않는 환원제는 H2이고, 탄소원자를 포함하는 환원-및-탄화제는 1 내지 5개의 탄소원자를 갖는 CH3OH, HCOOCH, 포화 또는 불포화 지방족 탄화수소인 것을 특징으로 하는 탄화철함유 침상입자의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019850007819A 1984-10-25 1985-10-23 탄화철을 함유하는 침상입자의 제조방법 KR890003867B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP59224966A JPS61106408A (ja) 1984-10-25 1984-10-25 炭化鉄を含有する針状粒子の製造法
JP59-224966 1984-10-25

Publications (2)

Publication Number Publication Date
KR860003631A true KR860003631A (ko) 1986-05-28
KR890003867B1 KR890003867B1 (ko) 1989-10-05

Family

ID=16821994

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019850007819A KR890003867B1 (ko) 1984-10-25 1985-10-23 탄화철을 함유하는 침상입자의 제조방법

Country Status (6)

Country Link
US (1) US4668414A (ko)
EP (1) EP0180162B1 (ko)
JP (1) JPS61106408A (ko)
KR (1) KR890003867B1 (ko)
CA (1) CA1273471A (ko)
DE (1) DE3576811D1 (ko)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4842759A (en) * 1983-04-25 1989-06-27 Daikin Industries, Ltd. Acicular process for producing particulate material
US5151206A (en) * 1983-04-25 1992-09-29 Daikin Industries, Ltd. Acicular iron carbide particulate material and process for producing same
JPS61154110A (ja) * 1984-12-27 1986-07-12 Mitsui Toatsu Chem Inc 磁気記録用針状性炭化鉄微粒子及びその製造方法
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
KR920008222B1 (ko) * 1987-05-12 1992-09-25 마쯔시다덴기산교 가부시기가이샤 자기기록매체 및 그 제조방법 및 제조장치
JPH0729763B2 (ja) * 1987-10-13 1995-04-05 ダイキン工業株式会社 炭化鉄微粒子及びその製造法
JPH0230626A (ja) * 1988-04-28 1990-02-01 Daikin Ind Ltd 炭化鉄微粒子及びその製造法
US5552073A (en) * 1988-09-26 1996-09-03 Seisan Kaihatsu Kagaku Kenkyusho Ferromagnetic fine particles of ε iron carbide and method for producing the same
US5040552A (en) * 1988-12-08 1991-08-20 Philip Morris Incorporated Metal carbide heat source
JP2773330B2 (ja) * 1989-06-16 1998-07-09 東芝ライテック株式会社 平面形蛍光ランプ装置、液晶表示装置および機器
US5188130A (en) 1989-11-29 1993-02-23 Philip Morris, Incorporated Chemical heat source comprising metal nitride, metal oxide and carbon
JPH085651B2 (ja) * 1990-07-02 1996-01-24 ダイキン工業株式会社 炭化鉄微粒子の製造方法
US5247949A (en) * 1991-01-09 1993-09-28 Philip Morris Incorporated Method for producing metal carbide heat sources
US5146934A (en) * 1991-05-13 1992-09-15 Philip Morris Incorporated Composite heat source comprising metal carbide, metal nitride and metal
US5246018A (en) * 1991-07-19 1993-09-21 Philip Morris Incorporated Manufacturing of composite heat sources containing carbon and metal species
WO1993014896A1 (fr) * 1992-01-22 1993-08-05 Daikin Industries, Ltd. Micro-particules aciculaires contenant du fer metallique, du carbure de fer et du carbone, leur production et composition d'un revetement magnetique et support d'enregistrement magnetique les contenant
US5552072A (en) * 1993-02-19 1996-09-03 Daikin Industries Ltd. Coated acicular fine particulate materials, processes for preparing same and use thereof
US5869018A (en) * 1994-01-14 1999-02-09 Iron Carbide Holdings, Ltd. Two step process for the production of iron carbide from iron oxide
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
AU750751B2 (en) 1998-03-31 2002-07-25 Iron Carbide Holdings, Ltd Process for the production of iron carbide from iron oxide using external sources of carbon monoxide
WO2003075295A1 (fr) * 2002-03-07 2003-09-12 Tdk Corporation Composant electronique de type stratifie
JP4834852B2 (ja) * 2005-01-06 2011-12-14 Ｄｏｗａエレクトロニクス株式会社 金属磁性粉末及びこれを用いた磁気記録媒体
JP4826360B2 (ja) * 2006-06-27 2011-11-30 トヨタ自動車株式会社 車高調整装置及び車高調整プログラム
CN111604075B (zh) * 2020-06-28 2023-07-25 江苏新瀚新材料股份有限公司 一种用于傅克酰基化反应的碳负载碳化铁催化剂及其制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2535042A (en) * 1950-01-05 1950-12-26 Ernst M Cohn Preparation of iron carbides
US3572993A (en) * 1968-07-23 1971-03-30 Du Pont Ultrafine,nonpyrophoric,chi-iron carbide having high coercivity
US3885023A (en) * 1973-02-15 1975-05-20 Phillips Petroleum Co Preparation of iron carbide (Fe{hd 3{b C)
JPS5310279B2 (ko) * 1974-03-01 1978-04-12
DE2735316C3 (de) * 1977-08-05 1981-01-29 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von nadeiförmigen, ferrimagnetischen Eisenoxiden
DE2935444A1 (de) * 1979-09-01 1981-03-19 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von nadelfoermigen ferrimagnetischem eisenoxid
DE3469820D1 (en) * 1983-04-25 1988-04-14 Daikin Ind Ltd Acicular particulate material containing iron carbide

Also Published As

Publication number Publication date
EP0180162A2 (en) 1986-05-07
EP0180162B1 (en) 1990-03-28
EP0180162A3 (en) 1987-10-14
CA1273471A (en) 1990-09-04
JPS647008B2 (ko) 1989-02-07
KR890003867B1 (ko) 1989-10-05
DE3576811D1 (de) 1990-05-03
JPS61106408A (ja) 1986-05-24
US4668414A (en) 1987-05-26

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