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KR830003787A - 자기녹음용 금속철분임자 - Google Patents

자기녹음용 금속철분임자 Download PDF

Info

Publication number
KR830003787A
KR830003787A KR1019800003019A KR800003019A KR830003787A KR 830003787 A KR830003787 A KR 830003787A KR 1019800003019 A KR1019800003019 A KR 1019800003019A KR 800003019 A KR800003019 A KR 800003019A KR 830003787 A KR830003787 A KR 830003787A
Authority
KR
South Korea
Prior art keywords
iron oxide
magnetic
precursor
ironing machine
magnetic recording
Prior art date
Application number
KR1019800003019A
Other languages
English (en)
Other versions
KR830002684B1 (ko
Inventor
제임스 디지크스 루이스
히만 로드리안 리챠드
Original Assignee
테렌스 제이. 겔라거
화이자 인코포레이티드
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 테렌스 제이. 겔라거, 화이자 인코포레이티드 filed Critical 테렌스 제이. 겔라거
Publication of KR830003787A publication Critical patent/KR830003787A/ko
Application granted granted Critical
Publication of KR830002684B1 publication Critical patent/KR830002684B1/ko

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C225/00—Compounds containing amino groups and doubly—bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly—bound oxygen atoms not being part of a —CHO group, e.g. amino ketones
    • C07C225/02—Compounds containing amino groups and doubly—bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly—bound oxygen atoms not being part of a —CHO group, e.g. amino ketones having amino groups bound to acyclic carbon atoms of the carbon skeleton
    • C07C225/04—Compounds containing amino groups and doubly—bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly—bound oxygen atoms not being part of a —CHO group, e.g. amino ketones having amino groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being saturated
    • C07C225/06—Compounds containing amino groups and doubly—bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly—bound oxygen atoms not being part of a —CHO group, e.g. amino ketones having amino groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being saturated and acyclic
    • 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
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/06—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/065—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder obtained by a reduction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/18—Non-metallic particles coated with metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
    • B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
    • 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
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/06—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/061—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder with a protective layer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Compounds Of Iron (AREA)

Abstract

내용 없음

Description

자기녹음용 금속철분임자
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (1)

  1. 산화철, 산화철 수화물, 변형산화철 또는 변형산화철 수화물에서 선택한 산화철 전구체를 환원시키기전에 상기 전구체의 산화철 함량을 기준으로 하여 안티몬 약 7중량%까지 함유된 안티몬 화합물로 상기 산화철 전구체를 코팅시킴을 특징으로 하여 개량된 상기 전구체를 기체상 환원제를 사용하여 환원시킨후 생성된 금속분말을 안정화시키는 자기 녹음용 금속 철분입자를 제조하는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019800003019A 1979-07-30 1980-07-29 자기 기록용 금속 철입자의 제조방법 KR830002684B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US61797 1979-07-30
US06/061,797 US4256484A (en) 1979-07-30 1979-07-30 Metallic iron particles for magnetic recording

Publications (2)

Publication Number Publication Date
KR830003787A true KR830003787A (ko) 1983-06-22
KR830002684B1 KR830002684B1 (ko) 1983-12-07

Family

ID=22038209

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019800003019A KR830002684B1 (ko) 1979-07-30 1980-07-29 자기 기록용 금속 철입자의 제조방법

Country Status (22)

Country Link
US (1) US4256484A (ko)
JP (1) JPS5623203A (ko)
KR (1) KR830002684B1 (ko)
AU (1) AU522889B2 (ko)
BE (1) BE884529A (ko)
BR (1) BR8004772A (ko)
CA (1) CA1132008A (ko)
CH (1) CH639014A5 (ko)
DD (1) DD153195A5 (ko)
DE (1) DE3028556C2 (ko)
ES (1) ES493819A0 (ko)
FI (1) FI70339C (ko)
FR (1) FR2462222A1 (ko)
IL (1) IL60693A (ko)
IN (1) IN154408B (ko)
IT (1) IT1132024B (ko)
MX (1) MX152979A (ko)
NL (1) NL8004337A (ko)
PH (1) PH15943A (ko)
PT (1) PT71622A (ko)
SE (1) SE454548B (ko)
SU (1) SU1419510A3 (ko)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2815712A1 (de) * 1978-04-12 1979-10-25 Bayer Ag Eisenoxide zur magnetischen signalaufzeichnung und verfahren zu deren herstellung
JPS5677931A (en) * 1979-11-28 1981-06-26 Tdk Corp Magnetic recording medium and its producton
EP0237944B1 (de) * 1986-03-14 1993-01-07 BASF Aktiengesellschaft Verfahren zur Herstellung von nadelförmigem alpha-Eisen-III-Oxid
US5219554A (en) 1986-07-03 1993-06-15 Advanced Magnetics, Inc. Hydrated biodegradable superparamagnetic metal oxides
JPS63302420A (ja) * 1987-01-16 1988-12-09 Nissan Chem Ind Ltd 磁性鉄粉の製造法
KR100870992B1 (ko) 2007-04-04 2008-12-01 나노케미칼 주식회사 열전지 열원용 영가철 분말 제조방법

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1215996A (fr) * 1957-12-16 1960-04-21 Thomson Houston Comp Francaise Matériaux magnétiques agglomérés et leur fabrication
JPS5528129B1 (ko) * 1967-08-10 1980-07-25
NL162233C (nl) * 1968-03-05 1980-04-15 Philips Nv Werkwijze ter bereiding van een in hoofdzaak uit ijzer bestaand magnetisch stabiel poeder, voor magnetische registratie.
NL163355C (nl) * 1969-04-08 1980-08-15 Philips Nv Werkwijze ter bereiding van een in hoofdzaak uit ijzer bestaand magnetisch stabiel metaalpoeder, voor magnetische registratie.
US3623859A (en) * 1970-05-22 1971-11-30 Ampex Process of making acicular stable magnetic iron particles
US3663318A (en) * 1970-10-05 1972-05-16 Du Pont Process for making ferromagnetic metal powders
DE2212933A1 (de) * 1972-03-17 1973-09-20 Philips Nv Verfahren zur herstellung eines im wesentlichen aus eisen bestehenden metallpulvers
US4067755A (en) * 1974-06-25 1978-01-10 Tdk Electronics Company, Ltd. Method of making powdered magnetic iron oxide material
JPS5133758A (ko) * 1974-09-17 1976-03-23 Fuji Photo Film Co Ltd
JPS5142990A (ko) * 1974-10-11 1976-04-12 Fuji Photo Film Co Ltd
IT1026663B (it) * 1974-11-29 1978-10-20 Montedison Spa Procedimento per preparare polve ri metalliche a base di ferro per registrzione hagnetica
US4020236A (en) * 1975-07-22 1977-04-26 Fuji Photo Film Co., Ltd. Process for producing a magnetic material and magnetic recording medium containing the same
DE2909995C2 (de) 1978-03-16 1984-06-28 Kanto Denka Kogyo Co., Ltd., Tokyo Verfahren zur Herstellung eines Magnetpulvers

Also Published As

Publication number Publication date
NL8004337A (nl) 1981-02-03
IL60693A (en) 1983-02-23
FI70339B (fi) 1986-02-28
FR2462222A1 (fr) 1981-02-13
DE3028556A1 (de) 1981-02-12
FI70339C (fi) 1986-09-12
MX152979A (es) 1986-07-11
IT1132024B (it) 1986-06-25
JPS5623203A (en) 1981-03-05
FR2462222B1 (ko) 1984-01-06
IT8023788A0 (it) 1980-07-29
SE8004264L (sv) 1981-01-31
ES8106267A1 (es) 1981-08-01
AU522889B2 (en) 1982-07-01
AU6087080A (en) 1981-06-18
SE454548B (sv) 1988-05-09
SU1419510A3 (ru) 1988-08-23
DD153195A5 (de) 1981-12-30
BE884529A (fr) 1981-01-29
JPH0146561B2 (ko) 1989-10-09
IN154408B (ko) 1984-10-27
FI802370A (fi) 1981-01-31
DE3028556C2 (de) 1986-04-17
CA1132008A (en) 1982-09-21
PH15943A (en) 1983-04-29
US4256484A (en) 1981-03-17
CH639014A5 (fr) 1983-10-31
PT71622A (en) 1980-08-01
BR8004772A (pt) 1981-02-10
ES493819A0 (es) 1981-08-01
KR830002684B1 (ko) 1983-12-07

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