Production of feed liquors for sodium carbonate crystallization processes
US6428759B1 · kind B1 · utility
39Cited by
29References
25Claims
0Family size
Assignee
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Key dates
| Filing date | May 2, 2000 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | May 2, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B26/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process is disclosed for converting dilute brines of sodium carbonate and sodium bicarbonate to form feed solutions from which sodium based chemicals may be recovered. The sodium bicarbonate in a dilute brine is neutralized and the brine then fortified with calcined trona to form a feed liquor concentrated in sodium carbonate from which sodium based chemicals may be recovered in a Monohydrate or other crystallization process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.