B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
204/98.01, 182/1
B01D 9/02 (2006.01) C02F 1/44 (2006.01) C02F 1/46 (2006.01)
Patent
CA 1115643
ABSTRACT OF THE DISCLOSURE A method for preventing fouling in apparatus used to separate a solvent from a solute which includes a semi-permeable membrane barrier is disclosed. The method comprises providing a quantity of nucleation crystals in the fluid stream passing through the separation apparatus which causes preferential precipi- tation of the solute thereby eliminating the formation of deposits on the membrane barrier. An apparatus for carrying out the process of the invention is also disclosed. The apparatus comprises inlet means for admitting the liquid feed, separation means which includes a semi-permeable membrane barrier, outlet means on both the upstream and downstream sides of the membrane barrier for removing the concentrated solute and purified solvent from said separation means, and means for introducing an amount of nuclea- tion crystals into said liquid feed which retard the formation of deposits on the semi-permeable membrane barrier.
326542
Herrigel Howard R.
Ridout & Maybee Llp
LandOfFree
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