Electrolytic production of hydrogen peroxide using bipolar membranes
US5358609A · kind A · utility
21Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 27, 1993 |
| Grant date | Oct 25, 1994 |
| Priority date | — |
| Expiry date | Jan 27, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B1/30
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method and apparatus for producing hydrogen peroxide in caustic solution utilizing an electrolytic cell having electrolytes, preferably, alkaline in both anode and cathode compartments separated by a bipolar membrane which splits water into hydrogen ions and hydroxyl ions. Electrolysis of oxygen which diffuses through a gas-diffusion cathode forms peroxide in catholyte while hydrogen ions generated within the bipolar membrane migrate into the catholyte. Peroxide can be produced in the catholyte as a cell product having a caustic to peroxide ratio of less than 1.0 at five percent peroxide, by weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.