Process for extracting dissolved salts from water
US3966539A · kind A · utility
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6References
10Claims
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Assignee
Inventor
Key dates
| Filing date | Feb 22, 1974 |
| Grant date | Jun 29, 1976 |
| Priority date | — |
| Expiry date | Feb 22, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D9/0018
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Evaporation of water from a salt-saturated liquid is facilitated by adding a particulate solid having a density greater than that of the saturated liquid, and by maintaining a thin surface layer of liquid by settlement of the solids to leave an optimum one to two mils thickness of said layer. Agitation is employed to restore the optimum thin layer, as required to overcome excessive settling or too rapid evaporation of the thin layer, referred to respectively, as a heavy layer of liquid, or a dry surface skin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.