C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/635.7
C07C 31/20 (2006.01) C07C 29/10 (2006.01) C07C 29/38 (2006.01) C07C 43/13 (2006.01)
Patent
CA 1150318
ABSTRACT OF THE DISCLOSURE The invention provides a novel and very economical method for the industrial production of ethyleneglycol starting with formaldehyde and synthesis gas, i.e. a gaseous mixture of carbon monoxide and hydrogen. The method utilizes the synthetic route in which a formaldehyde di-sec-alkyl acetal, which is obtained from formaldehyde and a sec-alcohol, with carbon monoxide and hydrogen to form an ethyleneglycol mono-sec-alkyl ether which is then hydrolyzed with water into the desired ethyleneglycol. The first step reaction of the acetal compound is catalyzed with a single component catalyst of cobalt carbonyl while the hydrolysis reaction proceeds with an acidic catalyst in a high yield unexpected from the similar reaction of ethyleneglycol mono-primary-alkyl-ethers.
369645
Bando Kenichiro
Matsuda Akio
Murata Kazuhisa
Sugi Yoshihiro
Takami Yasuo
Director-General Of The Agency Of Industrial Science And Technol
Kirby Eades Gale Baker
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