Pretreatment and start-up of electrolytic cell membranes
US3985631A · kind A · utility
9Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1975 |
| Grant date | Oct 12, 1976 |
| Priority date | — |
| Expiry date | Aug 13, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B15/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Cation-exchange membranes for use in the electrolysis of alkali metal chloride solutions are treated in order to introduce hydrated alkali metal ions throughout the membrane and are subsequently installed in a cell and subjected to an applied voltage not in excess of about 6.5 to 8.5, passage of current and electrolysis occurring immediately.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.