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

1988-12-01

1990-06-19

Caldarola, Glenn

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By plural serial diverse separations

585864, 203 63, 208313, C07C 700, B01D 338

Patent

active

049355791

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 alcohols. Typical effective azeotropic distillation agents are diethylene glycol butyl ether, diethylene glycol methyl ether and o-isopropyl phenol.

REFERENCES:
patent: 3431199 (1969-03-01), Reni et al.
patent: 4390741 (1983-06-01), Colvin et al.
patent: 4836896 (1989-06-01), Berg

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