Method and installation for removal of metal cations from a liquid by resins with polyazacycloalkanes grafted on a support
US7083732B1 · kind B1 · utility
7Cited by
4References
44Claims
0Family size
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Key dates
| Filing date | Aug 25, 2000 |
| Grant date | Aug 1, 2006 |
| Priority date | — |
| Expiry date | Oct 12, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/914
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention is related to a method and an installation for removal of metal cations contained in a liquid, in which said liquid is brought into contact at a temperature greater than or equal to 60° C. with a chelating ion exchange resin formed from a polyazacycloalkane grafted on a solid support, said resin having been conditioned, previously to said contacting, at a pH of 4 to 6.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.