Process for controlling the permeability of diaphragms in the preparation of polyvalent metals by electrolysis and an electrolysis cell for carrying out the process
US4392924A · kind A · utility
3Cited by
1References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 20, 1981 |
| Grant date | Jul 12, 1983 |
| Priority date | — |
| Expiry date | Oct 20, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C7/06
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The process according to the invention concerns the production of polyvalent metals such as titanium by electrolysis of molten halides. It comprises controlling the permeability of the diaphragm which separates the anolyte from the catholyte, by causing growth or re-dissolution of a deposit of the metal to be produced. The process is applied in particular to the production of titanium by electrolysis from TiCl.sub.4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.