Process for removing sulphate from aqueous solution
US5618437A · kind A · utility
4Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 1994 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | May 19, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01D3/145
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for removing sulphate ions from an aqueous solution of an alkali metal halide containing sulphate ions, which method comprises contacting said solution with a particulate, composite ion-exchange material comprising a hydrous oxide of a metal selected from the group consisting of titanium, zirconium and cerium, dispersed on a support comprising a brine solution compatible material. Preferably the compatible material is selected from hydrous oxides of titanium, cerium and zirconium. An improved cost-effective practical method of sulphate removal is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.