Method and apparatus for removing hydrocarbons from polymer...

Details Method and apparatus for removing hydrocarbons from polymer... Method and apparatus for removing hydrocarbons from polymer...

C - Chemistry, Metallurgy

08

F

C08F 6/10 (2006.01) B01D 1/00 (2006.01) B01D 3/06 (2006.01) B01J 8/00 (2006.01) B01J 8/20 (2006.01) C08F 6/00 (2006.01)

Patent

CA 2074780

Abstract of the Disclosure Methods and apparatus for the removal of hydrocarbons from polymer slurries are disclosed. The invention includes feeding a hydrocarbon-containing polymer slurry to a flash tank to flash a portion of the hydrocarbon from the slurry. A fraction of the residual slurry is circulated through a heating means and recirculated back to the flash tank to flash additional hydrocarbon from the slurry. The invention is applicable to remove isobutane solvent from any aqueous polyethylene slurry. It is also applicable to the removal of other hydrocarbons, including solvents, monomer and comonomer from polymer slurries.

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