Reduction of electrode overvoltage
US4120774A · kind A · utility
5Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 24, 1977 |
| Grant date | Oct 17, 1978 |
| Priority date | — |
| Expiry date | Jan 24, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B11/043
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The chlorine overvoltage of carbon and graphite electrodes is considerably and permanently decreased by treatment of the electrodes with nitric acid. The treatment also causes an apparently permanent decrease in the amount of oxygen produced at the electrode coincident with the chlorine generation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.