Method of removing organic solvents

Distillation: processes – separatory – With measuring – testing or inspecting – Of temperature or pressure

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159 471, 159DIG16, 203 60, 203 61, 203 62, 203 63, 203 58, 203 91, 203DIG21, 560248, B01D 310, B01D 334, B01D 342

Patent

active

051435853

ABSTRACT:
An organic solvent having a boiling point lower than that of water is removed from liquid containig water and the organic solvent contained in a tank by exhausting air in the tank, wherein an air pressure in the tank is kept about vapor pressure level of the liquid.

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patent: 4613412 (1986-09-01), McDermid
patent: 4731320 (1988-03-01), Sasaki et al.
patent: 4810274 (1989-03-01), Cheng et al.

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