Separation of M-diisopropylbenzene from P-diisopropylbenzene by

Details Separation of M-diisopropylbenzene from P-diisopropylbenzene by Separation of M-diisopropylbenzene from P-diisopropylbenzene by

1988-11-23

1989-11-14

Bascomb, Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

203 64, 585866, B01D 338, C07C 706

Patent

active

048805050

ABSTRACT:
Meta and para-diisopropylbenzenes cannot be easily separated from each other by distsillation because of the closeness of their vapor pressures. m-Diisopropylbenzene can be readily removed from p-diisopropylbenzene by azeotropic distillation using certain esters. Typical effective azeotropic distillation agents are methyl benzoate and diethylene glycol ethyl ether acetate.

REFERENCES:
patent: 2398689 (1946-04-01), Bloomer
patent: 2461993 (1949-02-01), McKinnis
patent: 2805258 (1957-09-01), Boodman et al.
patent: 2840621 (1958-06-01), Corson et al.
patent: 3222349 (1965-12-01), Holder
patent: 4128594 (1978-12-01), Westernacher

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