Method of removing water from alkali metal hydroxide solutions
US4505885A · kind A · utility
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15References
26Claims
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Key dates
| Filing date | Jun 20, 1983 |
| Grant date | Mar 19, 1985 |
| Priority date | — |
| Expiry date | Jun 20, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01D1/42
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method removing water from aqueous alkali metal hydroxide solutions by contacting the solution with an organic liquid at elevated temperatures and pressures to form an organic liquid-water phase and a hydroxide solution phase and thereafter separating the organic water phase from the hydroxide solution phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.