Process for producing manganese dioxide
US4402931A · kind A · utility
25Cited by
3References
6Claims
0Family size
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Inventors
Key dates
| Filing date | May 28, 1982 |
| Grant date | Sep 6, 1983 |
| Priority date | — |
| Expiry date | May 28, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Manganese dioxide having high bulk density, high tap density and high activity for use in batteries can be obtained by decomposing an aqueous solution of ammonia complex of manganese at a temperature of 68.degree. C. or higher than roasting the resulting manganese carbonate in an atmosphere of oxygen and 15-85% of steam at a temperature of 275.degree. to 375.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.