Electrowinning process with electrode compartment to avoid contamination of electrolyte
US5225051A · kind A · utility
3Cited by
5References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 24, 1991 |
| Grant date | Jul 6, 1993 |
| Priority date | — |
| Expiry date | Sep 24, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C7/005
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An electrolytic process and apparatus for reducing calcium oxide in a molten electrolyte of CaCl.sub.2 -CaF.sub.2 with a graphite anode in which particles or other contamination from the anode is restricted by the use of a porous barrier in the form of a basket surrounding the anode which may be removed from the electrolyte to burn the graphite particles, and wherein the calcium oxide feed is introduced to the anode compartment to increase the oxygen ion concentration at the anode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.