Electrolytic process for the production of chlorine dioxide
US6740223B2 · kind B2 · utility
2Cited by
6References
14Claims
0Family size
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Inventors
Key dates
| Filing date | Jun 19, 2002 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Jun 19, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B9/17
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Chlorine dioxide is produced at high conversion rates from aqueous sodium chlorite solution by electrochemical oxidation in an undivided electrochemical cell. The cell utilizes an anode of high surface area through which the aqueous sodium chlorite solution flows into an interelectrode gap between the anode and a cathode. Water or acidified water is fed into the interelectrode gap to function as catholyte and also to dilute the electrolyzed sodium chlorite solution to provide an aqueous solution of chlorine dioxide exiting from the electrochemical cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.