Consumption of hypochlorite values contained in perchlorate solutions of electrolysis
US5009754A · kind A · utility
1Cited by
3References
6Claims
0Family size
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Key dates
| Filing date | Feb 22, 1990 |
| Grant date | Apr 23, 1991 |
| Priority date | — |
| Expiry date | Feb 22, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B11/18
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The objectionable hypochlorite values, ClO.sup.- ions, contained in a solution of an alkali metal perchlorate produced by the electrolysis of an aqueous solution of the corresponding chlorate of the alkali metal, are effectively destroyed (consumed) without adversely affecting the valence state of the hexavalent chromium values also contained therein, by intimately contacting such perchlorate solution with an effective amount of hydrogen peroxide such that the molar ratio available hydrogen peroxide/hypochlorites is at least one.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.