Process for removing oxidizable substance or reducible substance, composite containing metal oxide or hydroxide, and process for production thereof
US5393724A · kind A · utility
12Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1993 |
| Grant date | Feb 28, 1995 |
| Priority date | — |
| Expiry date | Apr 28, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/514
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An oxidizable substance and/or a reducible substance is removed from a liquid, such as a liquid industrial waste, by treating the liquid with a composite comprising a fluorine-containing organic cation exchanger and a metal oxide or hydroxide, supported on the cation exchanger. The metal of the metal oxide or hydroxide is selected from manganese and elements of group 1B and group 8 of the periodic table. This treatment is carried out, if required, in the presence of an oxidizing agent, or by using the composite which has previously been treated with an oxidizing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.