Waste solvent recovery apparatus

Details Waste solvent recovery apparatus Waste solvent recovery apparatus

1980-01-14

1982-03-02

Adee, John

Liquid purification or separation

Automatic control

Thermal

210177, 210180, 210187, 196127, C02C 136

Patent

active

043177220

ABSTRACT:
A waste solvent recovery apparatus to recover tetrahydratfuran (THF) from waste sludge. THF sludge enters the apparatus container through a sludge jet generally pointing in a downward direction. Steam is directed downwardly and at the THF waste sludge jet tending to vaporize the THF while solid contaminants fall to the bottom of the container. The flow rate of steam with respect to waste sludge is adjusted so that the temperature at the bottom of the container exceeds the boiling point of THF and the temperature at the top of the container is less than the boiling point of water.

REFERENCES:
patent: 182169 (1876-09-01), Cole
patent: 1690060 (1928-11-01), Harrison
patent: 2345595 (1944-04-01), Gerin
patent: 4062770 (1977-12-01), Kneer
patent: 4116823 (1978-09-01), Choi

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