Separation of ethyl benzene from xylenes by azeotropic distillat

Details Separation of ethyl benzene from xylenes by azeotropic distillat Separation of ethyl benzene from xylenes by azeotropic distillat

1994-01-10

1995-05-23

Bascomb, Jr., Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

203 63, 585805, 585807, 585864, 585866, B01D 336, C07C 706

Patent

active

054178126

ABSTRACT:
Ethyl benzene is difficult to separate from xylenes by conventional distillation or rectification because of the proximity of their boiling points. Ethyl benzene can be readily separated from xylenes by azeotropic distillation. Effective agents for separating ethyl benzene from p-xylene are methyl formate, n-butanol and cyclopentanol; from p-xylene and m-xylene, n-butanol.

REFERENCES:
patent: 2848387 (1958-08-01), Glazier et al.
patent: 4292142 (1981-09-01), Berg
patent: 4299668 (1981-11-01), Berg
patent: 5135620 (1992-08-01), Brown

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