Apparatus for the extraction of oil or polychlorinated biphenyl

Details Apparatus for the extraction of oil or polychlorinated biphenyl Apparatus for the extraction of oil or polychlorinated biphenyl

1990-12-06

1992-01-21

Manoharan, Virginia

Distillation: apparatus

Apparatus

Systems

134 12, 134 21, 134108, 134109, 159 5, 159 131, 159 49, 159901, 159DIG16, 159DIG40, 2021851, 202202, 202205, 202236, 203 89, 203 94, 203 98, 2082625, 210909, B01D 122, B01D 310, B01D 1100

Patent

active

050825356

ABSTRACT:
An apparatus for dissolving oil or PCB which exists in the electrical insulation of parts to be cleaned, wherein a solvent is evaporated during a heating phase by an evaporator located with the parts in an autoclave. The solvent vapor condenses on the parts and penetrates into the electrical insulation to form an oil or PCB-solvent mixture. The apparatus provides for a plurality of intermediate pressure reductions which are carried out in the autoclave, and during each intermediatre pressure reduction the solvent is simultaneously evaporated from the oil or PCB-solvent mixture, directly from the autoclave. That is, during each of the pressure reductions, the solvent supply is discontinued and the mixture circulated through a circulating line. Following the completion of each intermediate pressure reduction, the pure oil or PCB present in a condensate vessel is pumped out by an intermediately located feed pump through a connecting line and into a reservoir.

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patent: 4699667 (1987-10-01), Walsh
patent: 4764256 (1988-08-01), Way
patent: 4879004 (1989-11-01), Oesch et al.

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