Vacuum pump oil recovery process

Details Vacuum pump oil recovery process Vacuum pump oil recovery process

1985-01-22

1986-10-07

Metz, Andrew H.

Liquid purification or separation

Processes

Separating

210799, 134 251, 134 26, 134 29, 134 30, 202170, B01D 2324

Patent

active

046158111

ABSTRACT:
A novel treatment method for recovering halogenated vacuum pump oils such as chlorotrifluoroethylene, from contaminated filter papers. The process utilizes a trichlorotrifluoroethane (TCTFE) solvent and water mixture to extract the oil followed by vacuum distilling the resulting extractive.

REFERENCES:
patent: 3428412 (1969-02-01), Gilbert et al.
patent: 4341567 (1982-07-01), Roehl
patent: 4443344 (1984-04-01), Lewis
patent: 4444625 (1984-04-01), Smith

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