Removal of benzene from carboxy polymethylene resin

Details Removal of benzene from carboxy polymethylene resin Removal of benzene from carboxy polymethylene resin

C - Chemistry, Metallurgy

08

F

402/398, 402/518

C08F 120/02 (2006.01) C08F 6/10 (2006.01)

Patent

CA 1222093

ABSTRACT Benzene is removed from carboxy polymethylene resin by dissolving the resin to form a solution and dispersing the solution as fine droplets in a gas phase or aerating the solution to introducing into it a fine dispersion of gas bubbles. The benzene transfer from the solvated resin to the gas phase and a benzene-free resin or solution can be obtained which may be usable in pharmaceutical and food products.

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