FR2034287A1 - Iron/chromium sesquioxide solid solns - Google Patents
Iron/chromium sesquioxide solid solnsInfo
- Publication number
- FR2034287A1 FR2034287A1 FR6906636A FR6906636A FR2034287A1 FR 2034287 A1 FR2034287 A1 FR 2034287A1 FR 6906636 A FR6906636 A FR 6906636A FR 6906636 A FR6906636 A FR 6906636A FR 2034287 A1 FR2034287 A1 FR 2034287A1
- Authority
- FR
- France
- Prior art keywords
- iron
- formula
- chromium sesquioxide
- solns
- solid solns
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/0018—Mixed oxides or hydroxides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Abstract
The cpds for use in the prodn of magnetic tapes, oxidation/dehydrogenation catalysts and semiconducting materials have the formula:- They are prepd by oxidising at 250-400 degrees C, with air or oxygen, an oxide mix of Fe and Cr contg. divalent Fe and formed of crystallites 10000A in size. Pref. the oxide mix is formed of substd. magnetites of formula:- or solid solns of gamma Cr2O3 in iron chromite of formula:-.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6906636A FR2034287A1 (en) | 1969-03-12 | 1969-03-12 | Iron/chromium sesquioxide solid solns |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6906636A FR2034287A1 (en) | 1969-03-12 | 1969-03-12 | Iron/chromium sesquioxide solid solns |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2034287A1 true FR2034287A1 (en) | 1970-12-11 |
FR2034287B1 FR2034287B1 (en) | 1973-04-06 |
Family
ID=9030383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR6906636A Granted FR2034287A1 (en) | 1969-03-12 | 1969-03-12 | Iron/chromium sesquioxide solid solns |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2034287A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2624846A1 (en) * | 1987-12-16 | 1989-06-23 | Atochem | COMPOSITION BASED ON A SPINEL STRUCTURE OXIDE, ITS APPLICATION AS CATALYST AND PROCESS FOR OBTAINING SAME |
-
1969
- 1969-03-12 FR FR6906636A patent/FR2034287A1/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2624846A1 (en) * | 1987-12-16 | 1989-06-23 | Atochem | COMPOSITION BASED ON A SPINEL STRUCTURE OXIDE, ITS APPLICATION AS CATALYST AND PROCESS FOR OBTAINING SAME |
EP0323304A1 (en) * | 1987-12-16 | 1989-07-05 | Elf Atochem S.A. | Composition comprising an oxide with a spinel structure, its use as a catalyst and process for obtaining it |
Also Published As
Publication number | Publication date |
---|---|
FR2034287B1 (en) | 1973-04-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |