DE2508088A1 - Verfahren zur herstellung von magnetit mit gleichachsiger morphologie in form eines hyperfeinen pulvers - Google Patents

Verfahren zur herstellung von magnetit mit gleichachsiger morphologie in form eines hyperfeinen pulvers

Info

Publication number
DE2508088A1
DE2508088A1 DE19752508088 DE2508088A DE2508088A1 DE 2508088 A1 DE2508088 A1 DE 2508088A1 DE 19752508088 DE19752508088 DE 19752508088 DE 2508088 A DE2508088 A DE 2508088A DE 2508088 A1 DE2508088 A1 DE 2508088A1
Authority
DE
Germany
Prior art keywords
iron
aqueous
autoclave
magnetite
hydroxide suspension
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.)
Withdrawn
Application number
DE19752508088
Other languages
German (de)
English (en)
Inventor
Luigi Colombo
Franco Montino
Giuseppe Sironi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Montedison SpA
Original Assignee
Montedison SpA
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 Montedison SpA filed Critical Montedison SpA
Publication of DE2508088A1 publication Critical patent/DE2508088A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • C01G49/08—Ferroso-ferric oxide [Fe3O4]
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • C01P2002/54—Solid solutions containing elements as dopants one element only
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/38—Particle morphology extending in three dimensions cube-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
    • C01P2004/62—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
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Organic Chemistry (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Composite Materials (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Iron (AREA)
  • Hard Magnetic Materials (AREA)
  • Soft Magnetic Materials (AREA)
DE19752508088 1974-02-25 1975-02-25 Verfahren zur herstellung von magnetit mit gleichachsiger morphologie in form eines hyperfeinen pulvers Withdrawn DE2508088A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT48635/74A IT1008300B (it) 1974-02-25 1974-02-25 Procedimento per ottenere magnetite in polvere iperfine

Publications (1)

Publication Number Publication Date
DE2508088A1 true DE2508088A1 (de) 1975-08-28

Family

ID=11267762

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752508088 Withdrawn DE2508088A1 (de) 1974-02-25 1975-02-25 Verfahren zur herstellung von magnetit mit gleichachsiger morphologie in form eines hyperfeinen pulvers

Country Status (8)

Country Link
US (1) US4025611A (esLanguage)
JP (1) JPS50124867A (esLanguage)
BE (1) BE825951A (esLanguage)
DE (1) DE2508088A1 (esLanguage)
FR (1) FR2261982B1 (esLanguage)
GB (1) GB1487012A (esLanguage)
IT (1) IT1008300B (esLanguage)
NL (1) NL7502003A (esLanguage)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2518283C3 (de) * 1975-04-24 1979-02-15 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von Eisenoxidschwarzpigmenten
US4382822A (en) * 1979-09-14 1983-05-10 Pfizer Inc. Synthetic rhombohedral magnetite pigment
JPH0822743B2 (ja) * 1989-03-27 1996-03-06 同和鉱業株式会社 スピネル型フエライトの製造法
JP2505344B2 (ja) * 1992-03-31 1996-06-05 日本碍子株式会社 フェライト用酸化鉄の製造方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1392927A (en) * 1920-06-22 1921-10-11 Magnetic Pigment Company Pigment and method of producing same
US2133267A (en) * 1934-01-24 1938-10-18 C K Williams & Co Black oxide of iron and process for making the same
GB433333A (en) * 1934-05-03 1935-08-13 Joseph Williams Ayers Improvements in black oxide of iron
US2922698A (en) * 1957-01-09 1960-01-26 Fettchemie Karl Marx Stadt Veb Oxidation process
NL6904796A (esLanguage) * 1969-03-28 1970-09-30
US3845198A (en) * 1972-05-03 1974-10-29 Bell & Howell Co Acicular gamma iron oxide process

Also Published As

Publication number Publication date
FR2261982A1 (esLanguage) 1975-09-19
IT1008300B (it) 1976-11-10
GB1487012A (en) 1977-09-28
BE825951A (fr) 1975-08-25
NL7502003A (nl) 1975-08-27
US4025611A (en) 1977-05-24
FR2261982B1 (esLanguage) 1979-06-08
JPS50124867A (esLanguage) 1975-10-01

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Legal Events

Date Code Title Description
8141 Disposal/no request for examination