Regeneration of chelated polyvalent metal solutions by controlled potential electrolysis
US4832937A · kind A · utility
5Cited by
5References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 28, 1988 |
| Grant date | May 23, 1989 |
| Priority date | — |
| Expiry date | Sep 28, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B17/05
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Electrochemical regeneration in an electrochemical cell of spent scrubbing solutions containing polvalent metal chelates is accomplished without substantial degradation of the chelate by controlling the anolyte pH and maintaining the anode potential of the cell above the oxidation potential of the polyvalent metal chelate but below the oxidation potential of the chelate portion of the polyvalent metal chelate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.