IT957902B - Procedimento per produre biossido di cromo ferromagnetico - Google Patents

Procedimento per produre biossido di cromo ferromagnetico

Info

Publication number
IT957902B
IT957902B IT5029172A IT5029172A IT957902B IT 957902 B IT957902 B IT 957902B IT 5029172 A IT5029172 A IT 5029172A IT 5029172 A IT5029172 A IT 5029172A IT 957902 B IT957902 B IT 957902B
Authority
IT
Italy
Prior art keywords
procedure
dioxide production
ferromagnetic
chrome dioxide
ferromagnetic chrome
Prior art date
Application number
IT5029172A
Other languages
English (en)
Original Assignee
Bayer Ag
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 Bayer Ag filed Critical Bayer Ag
Application granted granted Critical
Publication of IT957902B publication Critical patent/IT957902B/it

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/34—Compounds of chromium
    • 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
    • G11B5/70636—CrO2

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
IT5029172A 1971-05-19 1972-05-17 Procedimento per produre biossido di cromo ferromagnetico IT957902B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712124812 DE2124812A1 (de) 1971-05-19 1971-05-19 Verfahren zur Herstellung von ferromagnetischem Chromdioxid

Publications (1)

Publication Number Publication Date
IT957902B true IT957902B (it) 1973-10-20

Family

ID=5808310

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5029172A IT957902B (it) 1971-05-19 1972-05-17 Procedimento per produre biossido di cromo ferromagnetico

Country Status (5)

Country Link
BE (1) BE783763A (it)
DE (1) DE2124812A1 (it)
FR (1) FR2138160A1 (it)
IT (1) IT957902B (it)
NL (1) NL7206854A (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4311770A (en) * 1977-10-04 1982-01-19 Agence Nationale De Valorisation De La Recherche (Anvar) Novel ferromagnetic chromium dioxide and rhodium dioxide material and its preparation
FR2405220A1 (fr) * 1977-10-04 1979-05-04 Anvar Nouveau materiau ferromagnetique a base de dioxyde de chrome et de dioxyde de rhodium et son obtention
FR2433483A2 (fr) * 1978-08-18 1980-03-14 Anvar Materiau ferromagnetique a base de dioxyde de chrome et de dioxyde de rhodium et son obtention
IT1097025B (it) * 1978-07-21 1985-08-26 Montedison Spa Biossido di cromo ferromagnetico stabilizzato e procedimento per ottenerlo
FR2502384B1 (fr) * 1981-03-17 1985-12-06 Centre Nat Rech Scient Nouveau materiau ferromagnetique a base de chrome et d'iridium, son obtention et son application comme materiau d'enregistrement
US4524008A (en) * 1983-12-16 1985-06-18 E. I. Du Pont De Nemours And Company Controlled initiation chromium dioxide synthesis
CN109467433B (zh) * 2018-12-14 2021-03-30 电子科技大学 一种Co-Ti-Ta基介质陶瓷材料及其制备方法

Also Published As

Publication number Publication date
FR2138160A1 (en) 1972-12-29
BE783763A (fr) 1972-11-20
DE2124812A1 (de) 1972-11-30
NL7206854A (it) 1972-11-21

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