Separation of m-diisopropyl benzene from p-diisopropyl benzene b

Details Separation of m-diisopropyl benzene from p-diisopropyl benzene b Separation of m-diisopropyl benzene from p-diisopropyl benzene b

1988-11-14

1989-10-31

Bacomb, Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

203 63, 585864, 585866, B01D 338, C07C 706

Patent

active

048774910

ABSTRACT:
Meta and para-diisopropylbenzenes cannot be easily separated from each other by distillation because of the closeness of their vapor pressures. m-Diisopropylbenzene can be readily removed from p-diisopropylbenzene by azeotropic distillation using certain ketones. Typical effective azeotropic distillation agents are acetophenone, 2-undecanone and acetonyl acetone.

REFERENCES:
patent: 2461993 (1949-02-01), McKinnis
patent: 2563344 (1951-08-01), Leffert
patent: 2805258 (1957-09-01), Boodman et al.
patent: 3222349 (1965-12-01), Holder
patent: 4128594 (1978-12-01), Westernacher
patent: 4282071 (1981-08-01), Sherrod
patent: 4370205 (1983-01-01), Pujado
patent: 4390741 (1983-06-01), Colvin et al.

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