Method for the electrochemical production of adiponitrile using anodes having NiCo.sub.2 O.sub.4 catalyst
US4596638A · kind A · utility
2Cited by
12References
4Claims
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Key dates
| Filing date | Apr 26, 1985 |
| Grant date | Jun 24, 1986 |
| Priority date | — |
| Expiry date | Apr 26, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B3/295
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Anodes having NiCo.sub.2 O.sub.4 catalyst used in the electrohydrodimerization of acrylonitrile to adiponitrile result in anode voltage requirements of less than about 2000 millivolts at 100 milliamperes per square centimeter of anode area. Typically, oxygen evolving anodes comprised of lead or carbon steel are utilized in the hydrodimerization of acrylonitrile to adiponitrile resulting in high voltage requirements. Anodes containing NiCo.sub.2 O.sub.4 catalyst require substantially reduced voltages and perform well in the conventional electrochemical adiponitrile production environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.