Process for the separation of diolefins from mixtures containing

Details Process for the separation of diolefins from mixtures containing Process for the separation of diolefins from mixtures containing

1977-02-18

1979-02-20

Sever, Frank

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

203 59, 208326, 2606815R, 260677A, B01D 334

Patent

active

041405870

ABSTRACT:
A multi-stage process for the solvent extraction of isoprene or cyclopentadiene from a mixed feed stock containing the same, piperylene and C-5 saturated and olefinic hydrocarbons is disclosed wherein the feed stock is contacted with N-formyl morpholine and C-5 saturated and olefinic hydrocarbons are separated therefrom in a first stage, the solvent, piperylene and cyclopentadiene present in the feed stock are separated from the isoprene in a second stage, and the solvent is recovered and recycled to the second stage.

REFERENCES:
patent: 3230157 (1966-01-01), Hill et al.
patent: 3784626 (1974-01-01), Ginnasi et al.
patent: 3795588 (1974-03-01), Preusser et al.

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