Systems and methods for predetermining maximum pressure...

Details Systems and methods for predetermining maximum pressure... Systems and methods for predetermining maximum pressure...

B - Operations, Transporting

01

D

73/129, 182/15.3

B01D 65/10 (2006.01) B01D 61/08 (2006.01) B01D 61/12 (2006.01) B01D 61/28 (2006.01) B01D 63/02 (2006.01) G01N 15/00 (2006.01)

Patent

CA 2013203

ABSTRACT Systems and methods for predetermining maximum pressure differentials for particular microporous hollow fiber membranes and essentially immiscible feed and extractant liquids to be employed in liquid-liquid extractions include a test module having a number of such fibers formed into a loop between the opposing ends thereof. A tubular sleeve element encompasses these opposing ends, and a potting compound positionally retains the opposing ends within the tubular sleeve. The hollow fiber lumens are fluid-connected to a reservoir containing a pressurized feed liquid, and the loops of hollow fiber are immersed in an essentially unpressurized extractant liquid. The pressure of the feed liquid is continually increased until there is an incipient presence of the feed liquid in the extractant liquid. The pressure of the feed liquid at that incipient presence may therefore be used to calculate a maximum pressure differential tolerated by the microporous hollow fibers for the feed and extractant liquids used. The system which detects the incipient presence may also be associated with full scale liquid-liquid extraction modules so that malfunctions and/or module failures may be determined.

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