Process for the electrolytic treatment of alkali halide
US4246091A · kind A · utility
6Cited by
7References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 6, 1978 |
| Grant date | Jan 20, 1981 |
| Priority date | — |
| Expiry date | Mar 6, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2327/12
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for the electronic treatment of alkali halide. Use is made of a cation exchange membrane having as its ion exchange radicals, sulfonic acid radicals. This membrane is treated with primary to tertiary monoamine or its salt or quatary ammonium salt and then heat-treated at a temperature higher than 100.degree. C. and lower than melting point of the reaction product and then subjected to drying, so as to improving the cation-selecting performance of the membrane and to increase its current efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.