Process for the recovery of ethylene oxide

Details Process for the recovery of ethylene oxide Process for the recovery of ethylene oxide

1975-03-24

1976-06-22

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

With disparate physical separation

Utilizing liquid sorption of component from gas or vapor

203 69, 203 96, 55 51, 2603485R, C01D 114

Patent

active

039649806

ABSTRACT:
The conventional process for the recovery of ethylene oxide produced by the silver catalyzed, vapor phase, partial oxidation of ethylene with molecular oxygen involves a sequence of steps including absorption in water of the ethylene oxide contained in the reaction effluent. The ethylene oxide-containing absorbate is then stripped and the vapor thus generated is subjected to reabsorption, also in water. This invention provides an improved stripper-reabsorption system and includes the steps of partial condensation of the stripper overhead and introduction of an additional absorbent stream into the readsorption step.

REFERENCES:
patent: 3165539 (1965-01-01), Lutz
patent: 3174262 (1965-03-01), Lutz
patent: 3418338 (1968-12-01), Gilman et al.
patent: 3523957 (1970-08-01), Tsao
patent: 3729899 (1973-05-01), Cunningham
patent: 3745092 (1973-07-01), Vanderwater
patent: 3766714 (1973-10-01), Cunningham

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