Process for the electrolytic manufacture of alkali metal sulphide
US4992148A · kind A · utility
4Cited by
6References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 8, 1990 |
| Grant date | Feb 12, 1991 |
| Priority date | — |
| Expiry date | Feb 8, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B1/14
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Process for the manufacture of alkali metal sulphide, in which an electrolysis cell is used in which a membrane which is selectively permeable to cations separates an anode chamber containing an anode from a cathode chamber containing a cathode, an electrolyte containing alkali metal is electrolyzed in the anode chamber and an aqueous solution of alkali metal polysulphide is electrolyzed simultaneously in the cathode chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.