JPS5562814A - Production of high purity tricobalt tetroxide - Google Patents
Production of high purity tricobalt tetroxideInfo
- Publication number
- JPS5562814A JPS5562814A JP13572778A JP13572778A JPS5562814A JP S5562814 A JPS5562814 A JP S5562814A JP 13572778 A JP13572778 A JP 13572778A JP 13572778 A JP13572778 A JP 13572778A JP S5562814 A JPS5562814 A JP S5562814A
- Authority
- JP
- Japan
- Prior art keywords
- cobalt
- hydroxide
- dehydrated
- washed
- dried
- 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
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
PURPOSE: To obtain high purity tricobalt tetroxide with high productivity by reacting an aq. soln. of divalent cobalt salt with an excess of alkali hydroxide after which the resulting cobalt hydroxide is dehydrated, dried, and washed with water by a predetermined method.
CONSTITUTION: An aq. soln. of divalent cobalt salt or a slurry of divalent cobalt double salt is reacted with alkali hydroxide in an amt. more than 1.2 times as much as divalent cobalt ions by equivalent to form cobalt hydroxide precipitates. The precipitates are dehydrated, dried, and treated in an aq. system, whereby it is washed with water until the concn. of alkali metal ions in the washing water becomes 200, pref. 100ppm or less. This washed cobalt hydroxide is then dehydrated, dried, and optionally calcined at 300W900, pref. 350W850°C.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13572778A JPS5825052B2 (en) | 1978-11-06 | 1978-11-06 | Production method of high purity tricobalt tetroxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13572778A JPS5825052B2 (en) | 1978-11-06 | 1978-11-06 | Production method of high purity tricobalt tetroxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5562814A true JPS5562814A (en) | 1980-05-12 |
| JPS5825052B2 JPS5825052B2 (en) | 1983-05-25 |
Family
ID=15158462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13572778A Expired JPS5825052B2 (en) | 1978-11-06 | 1978-11-06 | Production method of high purity tricobalt tetroxide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5825052B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4395278A (en) * | 1980-09-29 | 1983-07-26 | Gte Products Corporation | Method for producing cobalt metal powder |
| JP2014503942A (en) * | 2010-11-25 | 2014-02-13 | ビーエーエスエフ ソシエタス・ヨーロピア | Process for producing transition metal composite oxide precursor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4694799B2 (en) * | 2004-07-07 | 2011-06-08 | パナソニック株式会社 | Method for producing tricobalt tetroxide for active material of non-aqueous electrolyte battery |
| JP2006291215A (en) * | 2006-05-29 | 2006-10-26 | C I Kasei Co Ltd | Cobalt-base black pigment and method for producing the same |
-
1978
- 1978-11-06 JP JP13572778A patent/JPS5825052B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4395278A (en) * | 1980-09-29 | 1983-07-26 | Gte Products Corporation | Method for producing cobalt metal powder |
| JP2014503942A (en) * | 2010-11-25 | 2014-02-13 | ビーエーエスエフ ソシエタス・ヨーロピア | Process for producing transition metal composite oxide precursor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5825052B2 (en) | 1983-05-25 |
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