B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 61/00 (2006.01) B01D 21/01 (2006.01) B01D 36/00 (2006.01) B01D 61/04 (2006.01) B01D 61/16 (2006.01) B01D 61/44 (2006.01) C02F 1/44 (2006.01)
Patent
CA 2109784
ABSTRACT OF THE DISCLOSURE An improved process and system for treating a solution of a solute which can be concentrated by forcing a portion of the solvent through a semi-permeable membrane and converted to the solid phase by increasing the concentration of thesolute in the solution. A phase conversion device receives the solution and converts a portion of the solute to the solid phase. The resulting mixture is passed through a separation device such as a filter to remove the solids from the remaining solution. A concentration device such as a reverse osmosis, electrodialysis or ultrafiltration device treats the resultant solution discharging a permeate of solvent essentially free of solute and a concentrate enriched in solute. A recycle line recycles the concentrate to the phase conversion device to advance precipitation of the solute by driving the solubility equilibrium toward precipitation.
Desai Satish
Marks & Clerk
LandOfFree
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