| 摘要 |
Process for removal of salts thermally non-regenerable in a temperature range from 0° C. to 200° C., from organic solvents in an aqueous solution by evaporation, the normal boiling point of organic solvents being higher than that of water, and by enriching the organic constituents existing in the solvent as well as the heat stable salts existing therein in a liquid phase forming by evaporation of water and a portion of the organic constituents of a first vessel, and discharging an evolving vaporous phase from the first vessel. In particular, the liquid phase formed in the first vessel is passed into a second vessel, water in vaporous and/or liquid form being passed into the second vessel, water and another portion of the organic constituents contained in the solvent being evaporated and forming a vaporous phase which is discharged from the second vessel, the heat stable salts being enriched in concentration in the liquid phase forming in the second vessel, and wherein a partial stream of the liquid phase formed in the second vessel is discharged from the second vessel. |
