Method for treating water or an aqueous solution
US5518627A · kind A · utility
50Cited by
9References
9Claims
0Family size
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Key dates
| Filing date | Mar 1, 1995 |
| Grant date | May 21, 1996 |
| Priority date | — |
| Expiry date | Mar 1, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/917
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for demineralizing water or an aqueous solution, which comprises contacting the water or the aqueous solution to be treated to a strongly basic anion exchanger made of a crosslinked polymer having a constituting unit of the following formula (I): ##STR1## wherein A is a C.sub.1-2 linear alkylene group, B is a C.sub.4-8 linear alkylene group, each of R1, R2 and R3 which may be the same or different, is a C.sub.1-4 alkyl group or a C.sub.2-4 alkanol group, X is a counter ion coordinated on the ammonium group, and the benzene ring D may have an alkyl group or a halogen atom as a substituent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.