Removal of sulfate ions from brine using composite of polymeric zirconium hydrous oxide in macroporous matrix
US4415677A · kind A · utility
11Cited by
2References
11Claims
0Family size
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Key dates
| Filing date | Oct 2, 1981 |
| Grant date | Nov 15, 1983 |
| Priority date | — |
| Expiry date | Oct 2, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J39/17
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Macroporous cation exchange resins with sulfonic acid functional groups having polymeric zirconium hydrous oxide contained therein are useful in substantially removing SO.sub.4.sup.= ions from metal salt solutions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.