Ion exchange materials, method of forming ion exchange materials, and methods of treating liquids
US7312175B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2004 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Nov 11, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2001/425
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention includes an ion affinity material having an organic component which is sulfonated and which is chemically bonded to an inorganic substrate component. The invention includes a method of forming a metal binding material. A solid support material comprising surface oxide groups is provided and an organic component having at least one alkyl halide is covalently linked to at least some of the surface oxide groups to form a modified support material. The at least one alkyl halide is subsequently converted into an alkyl sulfonate. The invention further includes a method and system for extracting ions from a liquid. An ion exchange material having a sulfonated alkyl silane component covalently bonded to a metal oxide support material is provided and a liquid is exposed to the ion exchange material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.