Method for recovering solvent

Details Method for recovering solvent Method for recovering solvent

1988-05-09

1990-04-17

Sever, Frank

Liquid purification or separation

Processes

Separating

210804, 210805, 210806, B01D 300, B01D 500

Patent

active

049178075

ABSTRACT:
A method for cleaning a solvent which may conatin hazardous particulate material which comprises liquid and vapor portions which are being recirculated in a closed system. Suspended particulate material is filtered out of the liquid. Dissolved particulate material is removed by distilling the liquid. The vapor is condensed and combined with the clean liquid. A portion of the vapor is recirculated. The solvent may be cleaned and recirculated continuously.

REFERENCES:
patent: 1947174 (1934-02-01), Sando
patent: 2011083 (1935-08-01), Sando
patent: 2171698 (1939-09-01), Hetzer
patent: 2400726 (1946-05-01), Wright et al.
patent: 3085415 (1963-04-01), Gosnell
patent: 3405452 (1968-10-01), Candor et al.
patent: 4119560 (1978-10-01), Sheeline
patent: 4235600 (1980-11-01), Capella et al.
patent: 4601181 (1986-07-01), Privat
patent: 4630625 (1986-12-01), Capella et al.
patent: 4676261 (1987-06-01), Blaul

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