Process for electrolysis of an aqueous alkali metal chloride solution
US4409074A · kind A · utility
9Cited by
5References
9Claims
0Family size
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Key dates
| Filing date | Apr 22, 1981 |
| Grant date | Oct 11, 1983 |
| Priority date | — |
| Expiry date | Apr 22, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B9/19
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed is an electrolytic process of an aqueous alkali metal chloride solution using a cation exchange membrane as a separator of an electrolytic cell, which comprises effecting the electrolysis while utilizing impact resilience of springs positioned at anodes and exerting positive pressure on a cathode compartment of the cell. Not only is stable operation at low cell voltage for a prolonged period of time enabled, but also high purity alkali metal hydroxide containing a reduced amount of sodium chloride is produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.