Separation of m-xylene from xylenes by azeotropic distillation

Details Separation of m-xylene from xylenes by azeotropic distillation Separation of m-xylene from xylenes by azeotropic distillation

1995-03-27

1995-08-29

Bascomb, Jr., Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

203 60, 203 57, 585864, 585866, B01D 336, C07C 706

Patent

active

054457157

ABSTRACT:
m-Xylene is very difficult to separate from mixtures of p-xylene and o-xylene by conventional distillation or rectification because of the proximity of their boiling points. m-Xylene can be readily separated from p-xylene and mixtures of p-xylene and o-xylene by azeotropic distillation. An effective agent is tetraethyl ortho silicate.

REFERENCES:
patent: 2456561 (1948-12-01), Lake et al.
patent: 2532031 (1950-11-01), Nixon et al.
patent: 2630406 (1953-03-01), Linn
patent: 2957811 (1960-10-01), Geiser
patent: 5039380 (1991-08-01), Berg

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