Recovery of alkylene glycols by azeotropic distillation with 1,2

Details Recovery of alkylene glycols by azeotropic distillation with 1,2 Recovery of alkylene glycols by azeotropic distillation with 1,2

1975-09-12

1977-05-03

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

260637R, 203 74, B01D 336, C07C 2924

Patent

active

040213110

ABSTRACT:
Ethylene glycol or 1,2-propylene glycol contained in mixtures with lower carboxylate esters of the glycol is recovered by azeotropic distillation of the mixtures with 1,2,3-trimethyl benzene.

REFERENCES:
patent: 2228431 (1941-01-01), Archibald et al.
patent: 3066116 (1962-11-01), Schiller et al.
patent: 3074962 (1963-01-01), Anderson
patent: 3437566 (1969-04-01), Gasser et al.
patent: 3809724 (1974-05-01), Golden
Horsley: Azeotropic Data III - (1973), pp. 145 & 146.
Weissberger: Technique of Organic Chemistry, vol. IV - Distillation, pp. 359-372.

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