Production of hypochlorite from impure saline solutions
US3974051A · kind A · utility
6Cited by
9References
4Claims
0Family size
Assignee
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Key dates
| Filing date | May 7, 1975 |
| Grant date | Aug 10, 1976 |
| Priority date | — |
| Expiry date | May 7, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/4674
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The formation of hardness-caused deposits on the cathodic surfaces of cells used in the electrolytic production of hypochlorite from impure saline solutions is reduced and good current efficiencies are realized by employing flat, continuous cathodes having a surface roughness of less than 2.54 .times. 10.sup.-.sup.4 cm. and passing said solution by said cathodes during electrolysis at a velocity of from 0.3 meter/sec. to the number which is equal to the log expressed by the formula: Log velocity (in m/sec/3) = 1.0 - (available Cl.sub.2 concentration, in grams per liter, divided by 4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.