Process for selective removal of sodium sulfate from an aqueous slurry
US4246241A · kind A · utility
24Cited by
14References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 16, 1979 |
| Grant date | Jan 20, 1981 |
| Priority date | — |
| Expiry date | Jul 16, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01D3/14
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for selectively removing sodium sulfate and sodium hydroxide from an aqueous slurry containing sodium chloride, sodium sulfate and sodium hydroxide, which comprises contacting the slurry in a countercurrent wash step with cool water to remove sodium sulfate and sodium hydroxide therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.