JPS57111245A - Preparation of iron oxyhydroxide - Google Patents
Preparation of iron oxyhydroxideInfo
- Publication number
- JPS57111245A JPS57111245A JP18760080A JP18760080A JPS57111245A JP S57111245 A JPS57111245 A JP S57111245A JP 18760080 A JP18760080 A JP 18760080A JP 18760080 A JP18760080 A JP 18760080A JP S57111245 A JPS57111245 A JP S57111245A
- Authority
- JP
- Japan
- Prior art keywords
- ferrate
- alkali
- iron oxyhydroxide
- sodium
- aqueous solution
- 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.)
- Pending
Links
Landscapes
- Compounds Of Iron (AREA)
- Hard Magnetic Materials (AREA)
Abstract
PURPOSE: To prepare iron oxyhydroxide in an extremely short reaction time, by adding an aqueous solution of an alkali ferrate to an alkaline aqueous solution and decomposing the alkali ferrate.
CONSTITUTION: The alkali ferrate used as the starting material is represented by the general formula M2FeO4 (M is Na or K), e.g. sodium ferrate or potassium ferrate. The concentration of the alkali ferrate depends upon the use of the produced iron oxyhydroxide; however, it is generally about 0.1W20wt% as Fe2O3. The alkali used in the alkali decomposition is sodium hydroxide or potassium hydroxide, and its amount is usually about ≤40wt% as MOH. The reaction system may contain a reducing agent such as ferrous sulfate, ferrous chloride, etc., a modifier such as a metal salt, e.g. Co++, Ni++, Zn++, etc. or an assistant such as sodium phosphate.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18760080A JPS57111245A (en) | 1980-12-29 | 1980-12-29 | Preparation of iron oxyhydroxide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18760080A JPS57111245A (en) | 1980-12-29 | 1980-12-29 | Preparation of iron oxyhydroxide |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57111245A true JPS57111245A (en) | 1982-07-10 |
Family
ID=16208941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18760080A Pending JPS57111245A (en) | 1980-12-29 | 1980-12-29 | Preparation of iron oxyhydroxide |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57111245A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61168534A (en) * | 1985-01-18 | 1986-07-30 | Agency Of Ind Science & Technol | Plate-shaped goethite and production thereof |
JPS61275133A (en) * | 1985-05-27 | 1986-12-05 | Agency Of Ind Science & Technol | Discoid geothite and its production |
-
1980
- 1980-12-29 JP JP18760080A patent/JPS57111245A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61168534A (en) * | 1985-01-18 | 1986-07-30 | Agency Of Ind Science & Technol | Plate-shaped goethite and production thereof |
JPH0260610B2 (en) * | 1985-01-18 | 1990-12-17 | Kogyo Gijutsu Incho | |
JPS61275133A (en) * | 1985-05-27 | 1986-12-05 | Agency Of Ind Science & Technol | Discoid geothite and its production |
JPH0262501B2 (en) * | 1985-05-27 | 1990-12-25 | Kogyo Gijutsu Incho |
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