Distillation: processes – separatory – Distillation in apparatus or element of specific material
Patent
1983-10-05
1985-08-13
Sever, Frank
Distillation: processes, separatory
Distillation in apparatus or element of specific material
203 99, 203100, 203DIG11, B01D 302
Patent
active
045348308
ABSTRACT:
A method for recovering clean solvent from a mixture of solvent and contaminants. An open top tank is mounted in a housing below a sink in which articles to be cleaned with solvent are placed. The sink has a tap through which solvent is directed so that the articles can be cleaned by hand in the sink itself. A disposable, plastic bag is receivable in the tank and the tank is closed by a cover. Contaminated solvent can flow from the sink, through the cover and into the bag in the tank. Contaminated solvent in the bag is heated by heating a liquid surrounding the side wall of the tank and below the bottom of the tank so that the solvent in the bag will vaporize. A tube leading out of the tank carries solvent vapor into a heat exchanger where the vapor is condensed to form clean, liquid solvent, and the liquid solvent is collected in a reservoir. A pump is coupled to the reservoir for pumping liquid solvent to the tap at the sink. The bag can be disposed of after the solvent has been vaporized therefrom. The heating means has an expansion chamber for allowing expansion of the heating liquid as it is heated. The apparatus provides a solvent reclaiming and cleaning station near a location where articles to be cleaned are used.
REFERENCES:
patent: 686772 (1901-11-01), Seltzer
patent: 3890988 (1975-06-01), Lee
patent: 4323429 (1982-04-01), Hoover
U.S. PTO, Classification Definitions; Class 203-Distillation: Processes, Separatory; pp. 203-205; Jul. 1973.
Sever Frank
Zerpa Industries, Inc.
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