KR940009271B1 - 탄화철 미립자의 제조방법 - Google Patents

탄화철 미립자의 제조방법 Download PDF

Info

Publication number
KR940009271B1
KR940009271B1 KR1019910011177A KR910011177A KR940009271B1 KR 940009271 B1 KR940009271 B1 KR 940009271B1 KR 1019910011177 A KR1019910011177 A KR 1019910011177A KR 910011177 A KR910011177 A KR 910011177A KR 940009271 B1 KR940009271 B1 KR 940009271B1
Authority
KR
South Korea
Prior art keywords
iron
compound
water
soluble
carbon atom
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
KR1019910011177A
Other languages
English (en)
Korean (ko)
Other versions
KR920002471A (ko
Inventor
요시유끼 시부야
나오끼 미야모도
시게오 다이몬
Original Assignee
다이낀 고오교오 가부시끼가이샤
야마다 미노루
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 다이낀 고오교오 가부시끼가이샤, 야마다 미노루 filed Critical 다이낀 고오교오 가부시끼가이샤
Publication of KR920002471A publication Critical patent/KR920002471A/ko
Application granted granted Critical
Publication of KR940009271B1 publication Critical patent/KR940009271B1/ko
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • 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
    • G11B5/70615—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 containing Fe metal or alloys
    • 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
    • C01B32/914—Carbides of single elements
    • 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
    • C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Hard Magnetic Materials (AREA)
  • Catalysts (AREA)
  • Compounds Of Iron (AREA)
KR1019910011177A 1990-07-02 1991-07-02 탄화철 미립자의 제조방법 Expired - Fee Related KR940009271B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2175819A JPH085651B2 (ja) 1990-07-02 1990-07-02 炭化鉄微粒子の製造方法
JP175819 1990-07-02
JP2-175819 1990-07-02

Publications (2)

Publication Number Publication Date
KR920002471A KR920002471A (ko) 1992-02-28
KR940009271B1 true KR940009271B1 (ko) 1994-10-06

Family

ID=16002783

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910011177A Expired - Fee Related KR940009271B1 (ko) 1990-07-02 1991-07-02 탄화철 미립자의 제조방법

Country Status (7)

Country Link
US (1) US5205950A (enExample)
EP (1) EP0464745B1 (enExample)
JP (1) JPH085651B2 (enExample)
KR (1) KR940009271B1 (enExample)
CA (1) CA2046047A1 (enExample)
DE (1) DE69114190T2 (enExample)
TW (1) TW198707B (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960016463B1 (ko) * 1992-01-22 1996-12-12 다이킨 고교 가부시키가이샤 금속철, 탄화철 및 탄소를 함유하는 침상 미립자, 그 제조법, 그것을 함유하는 자성도료 조성물 및 자기기록매체
US5869018A (en) 1994-01-14 1999-02-09 Iron Carbide Holdings, Ltd. Two step process for the production of iron carbide from iron oxide
JPH07320919A (ja) * 1994-05-24 1995-12-08 Daikin Ind Ltd 被着した微粒子及びその製法並びに用途
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
US9773594B2 (en) * 2012-01-04 2017-09-26 Virginia Commonwealth University Non-rare earth magnetic nanoparticles

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3469820D1 (en) * 1983-04-25 1988-04-14 Daikin Ind Ltd Acicular particulate material containing iron carbide
JPS61106408A (ja) * 1984-10-25 1986-05-24 Daikin Ind Ltd 炭化鉄を含有する針状粒子の製造法
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
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
JPH0729765B2 (ja) * 1988-01-27 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方法
US5026605A (en) * 1988-04-28 1991-06-25 Daikin Industries Ltd. Coated iron carbide fine particles

Also Published As

Publication number Publication date
JPH0465309A (ja) 1992-03-02
EP0464745B1 (en) 1995-11-02
US5205950A (en) 1993-04-27
EP0464745A3 (en) 1992-01-15
TW198707B (enExample) 1993-01-21
DE69114190D1 (de) 1995-12-07
JPH085651B2 (ja) 1996-01-24
DE69114190T2 (de) 1996-06-05
CA2046047A1 (en) 1992-01-03
KR920002471A (ko) 1992-02-28
EP0464745A2 (en) 1992-01-08

Similar Documents

Publication Publication Date Title
US4668414A (en) Process for producing acicular particles containing an iron carbide
EP0227104B1 (en) Particles containing iron carbide
KR940009271B1 (ko) 탄화철 미립자의 제조방법
US5026605A (en) Coated iron carbide fine particles
US5104561A (en) Process for preparing carbide fine particles
US5552073A (en) Ferromagnetic fine particles of ε iron carbide and method for producing the same
EP0326165B1 (en) Iron carbide fine particles and a process for preparing the same
US4931198A (en) Magnetic particles composed mainly of FeC and a process for preparing same
EP0179490B1 (en) Particles containing an iron carbide, production process and use thereof
KR950002968B1 (ko) 탄소를 함유하는 침상금속철미립자, 그의 제법, 이를 함유하는 자성도료 조성물 및 자기기록매체
JPH107420A (ja) コバルト被着型針状磁性酸化鉄粒子粉末
JPH0143683B2 (enExample)
JPS61111921A (ja) 炭化鉄を含有する針状粒子の製造法
JP3171223B2 (ja) 針状磁性粒子粉末の製造法
JPH0635326B2 (ja) 炭化鉄を含有する粒子の製造法
JPH0729764B2 (ja) 炭化鉄微粒子、磁性材料及び該微粒子の製造法
JPH0755827B2 (ja) 紡錘形を呈した鉄を主成分とする金属磁性粒子粉末の製造法
JPH0375489B2 (enExample)
JPH0580414B2 (enExample)
JPH07331310A (ja) 鉄を主成分とする紡錘状金属磁性粒子粉末の製造法
JPH0569048B2 (enExample)
JPH05335126A (ja) 針状磁性酸化鉄粒子粉末の製造法

Legal Events

Date Code Title Description
A201 Request for examination
PA0109 Patent application

St.27 status event code: A-0-1-A10-A12-nap-PA0109

PA0201 Request for examination

St.27 status event code: A-1-2-D10-D11-exm-PA0201

R17-X000 Change to representative recorded

St.27 status event code: A-3-3-R10-R17-oth-X000

PG1501 Laying open of application

St.27 status event code: A-1-1-Q10-Q12-nap-PG1501

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

St.27 status event code: A-1-2-D10-D21-exm-PE0902

T11-X000 Administrative time limit extension requested

St.27 status event code: U-3-3-T10-T11-oth-X000

T11-X000 Administrative time limit extension requested

St.27 status event code: U-3-3-T10-T11-oth-X000

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

G160 Decision to publish patent application
PG1605 Publication of application before grant of patent

St.27 status event code: A-2-2-Q10-Q13-nap-PG1605

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

St.27 status event code: A-1-2-D10-D22-exm-PE0701

GRNT Written decision to grant
PR0701 Registration of establishment

St.27 status event code: A-2-4-F10-F11-exm-PR0701

PR1002 Payment of registration fee

St.27 status event code: A-2-2-U10-U11-oth-PR1002

Fee payment year number: 1

LAPS Lapse due to unpaid annual fee
PC1903 Unpaid annual fee

St.27 status event code: A-4-4-U10-U13-oth-PC1903

Not in force date: 19971007

Payment event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

PC1903 Unpaid annual fee

St.27 status event code: N-4-6-H10-H13-oth-PC1903

Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

Not in force date: 19971007

P22-X000 Classification modified

St.27 status event code: A-4-4-P10-P22-nap-X000

R18-X000 Changes to party contact information recorded

St.27 status event code: A-5-5-R10-R18-oth-X000