Apparatus for separation of immiscible liquids

Details Apparatus for separation of immiscible liquids Apparatus for separation of immiscible liquids

1980-11-26

1985-06-25

Sadowski, David

Liquid purification or separation

Filter

Divided filtered, and unfiltered liquid passages

210472, B01D 3100

Patent

active

045252769

ABSTRACT:
The inventive liquid separator of laboratory use can overcome the problems in the conventional separatory funnels used for liquid-liquid phase separation. The inventive apparatus comprises (a) a first bottle-like vessel with a mouth, (b) a second bottle-like vessel with a mouth connected with the first vessel at the mouths with air-tightness but disconnectable therefrom, (c) a porous membrane partitioning the first and the second vessels and made, preferably, of a sintered body of a water-repellent plastic resin such as a fluorocarbon polymer, and (d) an air-passage tubing opening at the ends in the first and the second vessels. When a two-phase mixture of an aqueous liquid and an organic liquid is taken in the first vessel positioned above the second vessel, the organic liquid can pass through the porous membrane to be transferred into the second vessel but the aqueous liquid is retained in the first vessel by virtue of the water-repellency of the fluorocarbon polymer. The air-passage tubing serves as an air escape from the second vessel to the first so as not to disturb the down-flow of the liquid through the porous membrane.

REFERENCES:
patent: 2149227 (1939-02-01), Olson et al.
patent: 3156272 (1964-11-01), Indrunas
patent: 3817387 (1974-06-01), Bachle et al.
patent: 3973602 (1976-08-01), Kruse
patent: 4116646 (1978-09-01), Edwards
Kesting, R. E., Synthetic Polymeric Membranes, McGraw-Hill Book Co., N.Y., 1971, pp. 93-95.

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