Liquid purification or separation – Flow – fluid pressure or material level – responsive – Maintaining stream pressure or flow
Patent
1984-08-28
1988-12-06
Therkorn, Ernest G.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Maintaining stream pressure or flow
210 90, 21032164, 21032165, 21032175, B01D 1300
Patent
active
047894687
ABSTRACT:
An immobilized-interface solute-transfer unit for transferring solute from a feed solution to an extractant liquid comprises a fluid-tight housing and a porous membrane which divides the housing into a feed solution chamber and an extractant chamber. The housing has feed solution inlet and outlet ports which communicate with the feed solution chamber, and extractant inlet an outlet ports which communicate with the extractant chamber. The solute-transfer unit also includes a presure difference controller for maintaining a difference between a liquid pressure of a feed solution in the feed solution chamber and a liquid presure of an extractant in the extractant chamber substantially within a predetermined pressure range so that an interface between the feed solution and the extractant is substantially immobilized at the membrane. The solute-transfer unit is particularly adapted for transferring a solute from a feed solution to an extractant, which feed solution and extractant are immiscible with one another when in direct contact.
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The Trustees of the Stevens Institute of Technology
Therkorn Ernest G.
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