Electrochemical oxidation of diacetone-L-sorbose to diacetone-L-ketogulonic acid
US4097346A · kind A · utility
Inventor
Key dates
| Filing date | Feb 7, 1977 |
| Grant date | Jun 27, 1978 |
| Priority date | — |
| Expiry date | Feb 7, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B9/17
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Process for producing diacetone-L-ketogulonic acid by passing a solution of diacetone-L-sorbose through a specially constructed electrochemical cell while applying electrical current whereby to bring about oxidation of said diacetone-L-sorbose at the anode of said electrical cell, and recovering the diacetone-L-ketogulonic acid from said electrolyzed solution. The electrochemical cell utilizes an electrode which is characterized by its including at least one electrode roll formed by spiralling a deformable sandwich arrangement of electrode layers and spacing layers for preventing direct electrical contact between them, said electrode layers being made of an electrically conductive material, at least one of the spacing layers being ion-permeable and the electrodes and spacing layers having shapes and material structures which co-operate with each other to enable electrolyte flow through said electrode roll or rolls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.