[go: up one dir, main page]

NL8104793A - Werkwijze voor het bereiden van gamma-ijzer(iii)hydroxyoxide. - Google Patents

Werkwijze voor het bereiden van gamma-ijzer(iii)hydroxyoxide. Download PDF

Info

Publication number
NL8104793A
NL8104793A NL8104793A NL8104793A NL8104793A NL 8104793 A NL8104793 A NL 8104793A NL 8104793 A NL8104793 A NL 8104793A NL 8104793 A NL8104793 A NL 8104793A NL 8104793 A NL8104793 A NL 8104793A
Authority
NL
Netherlands
Prior art keywords
iron
oxidation
iii
rate
crystals
Prior art date
Application number
NL8104793A
Other languages
English (en)
Dutch (nl)
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of NL8104793A publication Critical patent/NL8104793A/nl

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00Compounds of iron
    • C01G49/02Oxides; Hydroxides
    • C01G49/06Ferric oxide [Fe2O3]
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62Record carriers characterised by the selection of the material
    • G11B5/68Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70Record 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
    • G11B5/706Record 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
    • G11B5/70626Record 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
    • G11B5/70642Record 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
    • G11B5/70652Record 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
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/01Particle morphology depicted by an image
    • C01P2004/03Particle morphology depicted by an image obtained by SEM
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/10Particle morphology extending in one dimension, e.g. needle-like
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/20Particle morphology extending in two dimensions, e.g. plate-like
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/42Magnetic properties

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)
NL8104793A 1980-10-24 1981-10-22 Werkwijze voor het bereiden van gamma-ijzer(iii)hydroxyoxide. NL8104793A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP14980180 1980-10-24
JP55149801A JPS5777033A (en) 1980-10-24 1980-10-24 Manufacture of iron oxide hydrate gamma-feooh

Publications (1)

Publication Number Publication Date
NL8104793A true NL8104793A (nl) 1982-05-17

Family

ID=15483005

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8104793A NL8104793A (nl) 1980-10-24 1981-10-22 Werkwijze voor het bereiden van gamma-ijzer(iii)hydroxyoxide.

Country Status (7)

Country Link
US (1) US4396596A (de)
JP (1) JPS5777033A (de)
CA (1) CA1158837A (de)
DE (1) DE3142117A1 (de)
FR (1) FR2492801B1 (de)
GB (1) GB2085860B (de)
NL (1) NL8104793A (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57209834A (en) * 1981-06-22 1982-12-23 Mitsui Toatsu Chem Inc Preparation of goethite
JPH0624984B2 (ja) * 1985-09-14 1994-04-06 昭和電工株式会社 レピツドクロサイトの製造方法
JPS62167221A (ja) * 1986-01-17 1987-07-23 Showa Denko Kk レピッドクロサイトの製造方法
JPS62167222A (ja) * 1986-01-17 1987-07-23 Showa Denko Kk レピツドクロサイトの製造方法
FR2624846B1 (fr) * 1987-12-16 1990-05-04 Atochem Composition a base d'un oxyde de structure spinelle, son application comme catalyseur et procede pour l'obtenir
JPH02267123A (ja) * 1989-04-05 1990-10-31 Showa Denko Kk レピッドクロサイトの製造方法
US6808741B1 (en) * 2001-10-26 2004-10-26 Seagate Technology Llc In-line, pass-by method for vapor lubrication
CN104829425B (zh) * 2015-04-14 2017-03-22 浙江师范大学 单分散梭形纳米片及其制备方法
CN113387393B (zh) * 2021-06-18 2023-05-02 浙江华源颜料股份有限公司 一种低吸油量氧化铁红颜料的清洁合成方法
CN117682566A (zh) * 2022-09-05 2024-03-12 衢州华友钴新材料有限公司 掺杂羟基氧化钴及其制备方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3082067A (en) * 1959-04-28 1963-03-19 Bayer Ag Process for the production of isometric ferromagnetic gamma-ferric oxide
DE1242199B (de) * 1960-12-15 1967-06-15 Bayer Ag Verfahren zur Herstellung von nadelfoermigem gamma-Eisen(III)-oxid

Also Published As

Publication number Publication date
CA1158837A (en) 1983-12-20
GB2085860A (en) 1982-05-06
JPS5777033A (en) 1982-05-14
FR2492801A1 (fr) 1982-04-30
US4396596A (en) 1983-08-02
FR2492801B1 (fr) 1985-07-26
GB2085860B (en) 1983-11-16
DE3142117A1 (de) 1982-07-08

Similar Documents

Publication Publication Date Title
US3947502A (en) Production of finely divided acicular magnetic iron oxides
US4267207A (en) Process for producing cobalt-containing ferromagnetic iron oxide powder
NL8104793A (nl) Werkwijze voor het bereiden van gamma-ijzer(iii)hydroxyoxide.
US4406694A (en) Process for producing acicular ferromagnetic alloy particles and acicular ferromagnetic alloy particles obtained by the said process
JPH09295814A (ja) 紡錘状ゲータイト粒子粉末及びその製造法並びに該ゲータイト粒子粉末を出発原料として得られる鉄を主成分とする紡錘状金属磁性粒子粉末及びその製造法
JP3268830B2 (ja) 金属磁性粉末及びその製造方法
US4594267A (en) Process for producing cobalt-containing magnetic iron oxide powder
US4457955A (en) Process for producing magnetizable particles
US3925114A (en) Process for preparation of magnetic alloy powder
US4331489A (en) Process for producing magnetic powder
US4551327A (en) Process for producing cobalt-and ferrous iron-containing ferromagnetic iron oxides
US4576635A (en) Process for producing ferromagnetic metal powder
JP3337046B2 (ja) コバルトと鉄とを主成分とする紡錘状金属磁性粒子粉末及びその製造法
US5076836A (en) Process for the preparation of ferromagnetic metallic particles for magnetic recording
JP4182310B2 (ja) 磁気記録用Fe及びCoを主成分とする紡錘状合金磁性粒子粉末の製造法
JPS6135135B2 (de)
JPS5888122A (ja) コバルト含有強磁性酸化鉄の製造方法
US5531977A (en) Process for producing acicular γ-FeOOH particles
JPS6136684B2 (de)
JPH0463210A (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
JPS63142607A (ja) 磁性鉄粉の製造方法
JPS5921364B2 (ja) 針状晶Fe−Zn合金磁性粒子粉末の製造法
JP2704544B2 (ja) 紡錘形を呈した磁性酸化鉄粒子粉末の製造法
JPS6151401B2 (de)
JPS63140005A (ja) 強磁性金属微粒子粉末の製造法

Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BV The patent application has lapsed