Isolation of a conjugated diolefin from a C.sub.4 - or C.sub.5 -

Details Isolation of a conjugated diolefin from a C.sub.4 - or C.sub.5 - Isolation of a conjugated diolefin from a C.sub.4 - or C.sub.5 -

1980-03-03

1981-07-14

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

Adding material to distilland except water or steam per se

At least two materials

203 56, 203 58, 203 60, 203 63, 585810, 585862, 585865, 585866, B01D 340, C07C 708

Patent

active

042785049

ABSTRACT:
A process for isolating a conjugated diolefin from a C.sub.4 - or C.sub.5 -hydrocarbon mixture containing the diolefin, by single-stage or multi-stage extractive distillation using a selective solvent, wherein the selective solvent is a solvent mixture which comprises

REFERENCES:
patent: 2366360 (1945-01-01), Semon
patent: 2455803 (1948-12-01), Pierroti
patent: 3242227 (1966-03-01), Kroeper et al.
patent: 3436438 (1969-04-01), Takao et al.
patent: 3681202 (1972-08-01), Funkhouser
patent: 3707575 (1972-12-01), Muller et al.
patent: 4076595 (1978-02-01), Haskell
patent: 4081332 (1978-03-01), Hein
The Soviet Chemical Industry, No. 11, Nov. 1971, pp. 719-723.

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