Isolation of 1,3-butadiene

Details Isolation of 1,3-butadiene Isolation of 1,3-butadiene

1988-03-18

1989-08-22

Manoharan, Virginia

Distillation: processes, separatory

Plural distillations performed on same material

One a distillation under positive pressure or vacuum

203 77, 203 78, 203 80, 203 99, 203DIG9, 203DIG19, 585810, 585864, B01D 340, C07C 704

Patent

active

048592862

ABSTRACT:
1,3-Butadiene is isolated from a C.sub.4 -hydrocarbon mixture containing 1,3-butadiene and small amount of propyne and C.sub.5 -hydrocarbons by extractive distillation with a selective solvent and subsequent distillative purification of the crude 1,3-butadiene obtained in the extractive distillation.

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Coulson et al., "Chemical Engineering"; vol., 2, Unit Operations; 3rd ed. pp. 476-478 & 598-600.
Chemical and Process Engineering, Mar. 1970, pp. 65-76, FIG. 5.

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