Removal of sulfate ions from brine
US4405576A · kind A · utility
6Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1981 |
| Grant date | Sep 20, 1983 |
| Priority date | — |
| Expiry date | Oct 2, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01G25/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Macroporous cation exchange resins with sulfonic acid functional groups having polymeric hydrous zirconium oxide and polyacrylic acid contained therein are useful in substantially removing sulfate, borate, bicarbonate and/or phosphate ions from alkali metal salt solutions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.