Enhanced recovery of sodium carbonate from NaCl-containing sodium carbonate solutions
US4288419A · kind A · utility
28Cited by
9References
9Claims
0Family size
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Key dates
| Filing date | Apr 4, 1980 |
| Grant date | Sep 8, 1981 |
| Priority date | — |
| Expiry date | Apr 4, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01D7/24
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for enhancing recovery of sodium carbonate from sodium carbonate solutions which contain sodium chloride. Anhydrous sodium carbonate is recovered in good yields from aqueous sodium carbonate solutions containing sodium chloride by evaporative crystallization at superatmospheric pressure and at a temperature of at least about 120.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.