Method of reducing chlorate formation in a chlor-alkali electrolytic cell
US4127457A · kind A · utility
7Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1978 |
| Grant date | Nov 28, 1978 |
| Priority date | — |
| Expiry date | Mar 1, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B1/46
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
In a chlor-alkali electrolytic cell in which an aqueous alkali metal chloride solution is electrolyzed, said electrolytic cell having an anode compartment containing an anode and a cathode compartment containing a cathode separated by a substantially fluid impervious membrane barrier consisting of a copolymer of tetrafluoroethylene and a sulfonated perfluorovinyl ether, the formation of alkali metal chlorates in the anode compartment is reduced by operating the chlor-alkali cell at high salt conversions greater than 40% and preferably between about 60% and about 80% conversion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.