Extractive distillation of C.sub.4 hydrocarbons with an extracta

Details Extractive distillation of C.sub.4 hydrocarbons with an extracta Extractive distillation of C.sub.4 hydrocarbons with an extracta

1976-10-13

1978-02-28

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

Adding material to distilland except water or steam per se

At least two materials

203 56, 203 57, 203 58, 203 62, 203 63, 203 78, 203 80, 260677A, 2606815R, B01D 340, C07C 1116

Patent

active

040765954

ABSTRACT:
A mixture of methylethylsulfone and at least one compound from the group including methylethylketone, acetone, and tetrahydrofuran is employed as a selective solvent in extractive distillation process for separation of diolefins from olefins.

REFERENCES:
patent: 2357028 (1944-08-01), Shiros et al.
patent: 2455803 (1948-12-01), Pierotti
patent: 2506858 (1950-05-01), Davidson
patent: 3070518 (1962-12-01), Nelson et al.
patent: 3846332 (1974-11-01), Croix

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