Method for separating an acid and an alkali from an aqueous solution of a salt
US4707234A · kind A · utility
28Cited by
4References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 24, 1986 |
| Grant date | Nov 17, 1987 |
| Priority date | — |
| Expiry date | Oct 24, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2327/18
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for separating an acid and an alkali from an aqueous solution of a salt by an ion exchange membrane electrolysis wherein anion and cation exchange membranes are used as diaphragms and wherein the acid is formed in an anode compartment, and the alkali is formed in a cathode compartment, characterized in that the cation exchange membrane is a fluorinated cation exchange membrane and the anion exchange membrane is a fluorinated anion exchange membrane with the ion exchange capacity varied from one side to the other side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.