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

1981-07-07

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

Adding material to distilland except water or steam per se

At least two materials

203 53, 203 58, 203 60, 585810, 585862, 585865, 585866, B01D 340, C07C 708

Patent

active

042773156

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
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patent: 3031515 (1962-04-01), Deprez et al.
patent: 3206377 (1965-09-01), Cornell et al.
patent: 3242227 (1972-08-01), Kroeper et al.
patent: 3436438 (1969-04-01), Takao et al.
patent: 3681202 (1972-08-01), Funkhouser
patent: 4081332 (1978-03-01), Hein
The Soviet Chemical Industry, No. 11, Nov. 1971, pp. 719-723.

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