Method for separating a liquid component from a solution containing two or more liquid components
US5271846A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1992 |
| Grant date | Dec 21, 1993 |
| Priority date | — |
| Expiry date | Mar 24, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08B37/003
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved method for separating a particular liquid component from a solution containing two or more liquid components. The method employs a vessel divided into a solution chamber and a vacuum chamber by a permeable membrane which is a porous membrane exhibiting a superior affinity to the particular component intended to be separated than to the other components. The solution is placed in the solution chamber out of direct contact with the permeable membrane at which condition a vacuum is applied to the vacuum chamber to evaporate the solution in the chamber and draw the resulting vapors through the permeable membrane into the vacuum chamber, thereby collecting the particular component from the solution in a vapor-to-vapor permeation through the permeable membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.