Recovery of alkylene glycols by azeotropic distillation

Details Recovery of alkylene glycols by azeotropic distillation Recovery of alkylene glycols by azeotropic distillation

1977-06-06

1979-04-24

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

Addition of material to distilland to inhibit or prevent...

203 49, 203 69, 203 81, 568868, B01D 336, C07C 2928

Patent

active

041510488

ABSTRACT:
Ethylene glycol or 1,2-propylene glycol contained in mixtures with lower carboxylate esters of glycol, e.g. as produced by hydrolysis of the esters, is recovered by distillation of the mixtures with a hydrocarbon forming a minimum boiling azeotrope with the ethylene dlycol or 1,2-propylene glycol, the hydrocarbon being maintained in an inert atmosphere in the system.

REFERENCES:
patent: 2619452 (1952-11-01), Jones et al.
patent: 3154583 (1964-10-01), Dombrow et al.
patent: 3809724 (1974-05-01), Golden
patent: 3864216 (1975-02-01), Worrell et al.
patent: 3951756 (1976-04-01), Dirks et al.
patent: 4021311 (1977-05-01), Becker
patent: 4028195 (1977-06-01), Becker et al.
patent: 4045294 (1977-08-01), Becker et al.

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