Production of pinacols in a membrane cell
US3992269A · kind A · utility
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3References
10Claims
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Assignee
Inventors
Key dates
| Filing date | Nov 3, 1975 |
| Grant date | Nov 16, 1976 |
| Priority date | — |
| Expiry date | Nov 3, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B3/295
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed is an improved method for the electrochemical production of pinacols from organic carbonyl compounds at high current efficiency in an acid medium in a cell having a hydraulically impermeable cation-exchange membrane. Aqueous organic carbonyl compound and sulfuric acid are introduced to the cathode compartment of the cell along with copper ions in controlled concentrations. After passing an electrolyzing current between the anode and cathode of the cell the pinacol is recovered from the cathode compartment effluent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.