Process for the preparation of ethylene glycol
AssigneeThe Standard Oil Company
InventorsWilford J. Zimmerschied, David A. Palmer, Ralph J. Bertolacini
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Abstract
The present disclosure relates to the catalytic hydration of alkylene oxides, in particular ethylene oxide for the production of glycols using a catalyst comprising a copper promoted aluminum phosphate. In certain instances the isomerization activity of the catalyst can be reduced by the incorporation of small quantities of alkali or alkaline earth metals as inhibitors for such process.
Claims12
A process for production of ethylene glycol which comprises contacting at reaction conditions a mixture of ethylene oxide and water with a catalyst essentially consisting of aluminum phosphate and containing from about 0.05 to about 10 percent by weight of copper based on aluminum phosphate which catalyst has been calcined at a temperature of less than 900.degree. F. to effect the production of said glycol.
A process for the production of ethylene glycol which comprises contacting at reaction conditions including a molar ratio of water to ethylene oxide of from about 6 to about 20, a temperature of from about 400.degree. to about 550.degree. F. and a pressure of from about 50 to about 300 psig, a mixture of water and ethylene oxide with a catalyst essentially consisting of an aluminum phosphate catalyst containing from about 0.1 to about 3 percent by weight of copper which catalyst has been calcined at a temperature of less than 900.degree. F. to effect the production of ethylene glycol.
A process for production of ethylene glycol which comprises contacting, at reaction conditions including a molar ratio of water to ethylene oxide of from about 6 to about 20, a temperature of from about 400.degree. to about 550.degree. F. and a pressure of from about 50 to about 300 psig, a mixture of water and ethylene oxide with a catalyst consisting essentially of an aluminum phosphate containing from about 0.1 to about 3 percent by weight of copper which catalyst has been contacted by being calcined at less than 900.degree. F. to effect the production of ethylene glycol.
Dependencies are inferred from the claim text.