Production of anhydrous 1,4-dioxane

Details Production of anhydrous 1,4-dioxane Production of anhydrous 1,4-dioxane

1980-05-20

1982-12-21

Love, Ethel G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D31904

Patent

active

043650716

ABSTRACT:
This invention relates to the production of anhydrous 1,4-dioxane by the dimerization of ethylene oxide in the presence of an acidic type of cation exchanger, preferably an acidic cation exchanger resin having sulfonic acid groups associated therewith. The 1,4-dioxane is formed by contacting ethylene oxide in the liquid phase with an acidic-type cation exchanger at a first temperature and for a time sufficient to yield a reaction product of the ethylene oxide and the cation exchanger, and thereafter heating the reaction product at a second temperature higher than the first temperature and for a time period sufficient to dissociate the reaction product and thereby yield 1,4-dioxane.

REFERENCES:
patent: 1921378 (1933-08-01), Webel
patent: 1939189 (1933-12-01), Steimmig et al.
patent: 2035386 (1936-03-01), Salzberg
patent: 3825568 (1974-07-01), Schecker et al.
patent: 3998848 (1976-12-01), Stapp
patent: 4124541 (1978-11-01), Conrad et al.
patent: 4146736 (1979-03-01), Scheffel et al.
Beilsteins Handbuch Organ. Chem. 19/1, p. 9, (1977).
The Canadian Journal of Chemical Engineering, vol. 57, Jun. 1979, pp. 297-304, J. Yamanis and B. D. Patton.
Chem. Abstracts 71:124349f, 76:14449j.

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