Decontamination of water using nitrate selective ion exchange resin
US4944878A · kind A · utility
14Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1989 |
| Grant date | Jul 31, 1990 |
| Priority date | — |
| Expiry date | Nov 16, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/903
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for nitrate decontamination of water which involves passing the water through a bed of alkyl phosphonium anion exchange resin which has pendant alkyl groups of C.sub.3 or larger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.