High capacity regenerable sorbent for removing arsenic and other toxic ions from drinking water
US7183235B2 · kind B2 · utility
14Cited by
218References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2003 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Aug 29, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2101/103
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is directed to a sorbent comprising a disordered polyvalent metal oxide on the surface of an inert substrate. The substrate can be a layered silicate, such as vermiculite, an aluminosilicate such as montmorillonite, or a nonlayered silicate such as a zeolite. The sorbent removes ionic contaminants, such as arsenic, from process streams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.