Apparatus for electrolysis of an aqueous alkali metal chloride solution
US4278526A · kind A · utility
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4Claims
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Key dates
| Filing date | Dec 18, 1979 |
| Grant date | Jul 14, 1981 |
| Priority date | — |
| Expiry date | Dec 18, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B1/46
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Apparatus for the electrolysis of an aqueous alkali metal chloride solution using a cation exchange membrane, wherein the apparatus is designed so that gas-liquid interface, at which halogen gas is separated, is maintained larger than the sum total of the cross section area of the unit anode chambers opposing to cathodes, and further, higher than the upper end of the cation exchange membrane. The invention has numerous advantages including substantial absence of halogen gas, operation at a low voltage, a high pure product, simplification of operation control and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.