Extractive distillation

Details Extractive distillation Extractive distillation

B - Operations, Transporting

01

D

B01D 3/40 (2006.01) B01D 3/14 (2006.01)

Patent

CA 2387169

The present invention provides a flexible extractive distillation process to separate one or more C4-10 olefins from a solvent or diluent comprising one or more C4-10 alkanes. The process involves the extractive distillation of the mixture using a lactam in the absence of an additional extractive agent such as a sulfolane or glycol. The process is useful in recovering monomer from solvent /diluent in solution or slurry polymerizations.

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