Apparatus for countercurrent liquid-liquid extraction

Details Apparatus for countercurrent liquid-liquid extraction Apparatus for countercurrent liquid-liquid extraction

1975-02-27

1976-10-26

Emery, Stephen J.

Chemistry: physical processes

Physical processes

Crystallization

196 1452, B01D 1104

Patent

active

039881164

ABSTRACT:
Disclosed is a sieve tray extraction column useful for performing liquid-liquid extractions. The sieve trays are made in the form of tubular members with an open top end and one or more openings in the bottom end and in the side of the member. Each tubular member is of smaller diameter than the column and is sealed to the inside of the column wall at the top end only. An annular space is thus defined between each tubular member and the inner column wall. In this structure the annular space functions as an upcomer or downcomer for passage of the solvent liquid through the column.

REFERENCES:
patent: 2000606 (1935-05-01), Othmer
patent: 2153507 (1939-04-01), Mann
patent: 3468633 (1969-09-01), Honchar

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