Inorganic ion sorbents and methods for using the same
US7074336B1 · kind B1 · utility
13Cited by
22References
1Claims
0Family size
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Key dates
| Filing date | Jun 20, 2001 |
| Grant date | Jul 11, 2006 |
| Priority date | — |
| Expiry date | Jun 20, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/913
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process and medium for decontamination of water containing anionic species including arsenic and chromium, wherein compounds comprising divalent and trivalent metal oxides and sulfides are used to form surface complexes with contaminants under pH conditions within the range of potable water. In one embodiment natural and synthetic spinels and spinel-like materials are used as the sorbent substance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.