Halohydrocarbon recovery process

Distillation: processes – separatory – With disparate physical separation – Utilizing solid sorbent

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Details

203DIG11, 210664, 210669, 210689, 210691, B01D 300

Patent

active

058371060

ABSTRACT:
A halohydrocarbon solvent recovery process. The process in one embodiment included heating a gross mixture including solvent, fatty-acid impurities and water in a bath to vaporize at least a portion of the solvent and the impurities. A portion of the vapor is then condensed in a reflux condenser to form a condensate mixture. After drying and impurity adsorption, a solvent product of at least 99% purity may be recovered. In one embodiment, the gross mixture is obtained from steam stripping dry-cleaner filter cartridges.

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CA 112: 82756.
CA 83: 205693.
"Complete Recycling for the Dry Cleaning Industry, Project Abstract,"Hazardous Waste Reduction Technology Research, Development and Demostration Grant Program, State of Calif. Dept. of Health Services, Toxic Substrates Control Program, Alternative Technology Division, Waste Reduction Unit, Fiscal Year 1989-1990, pp. 17.

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