Continuous manufacture of allyl diglycol carbonate

Details Continuous manufacture of allyl diglycol carbonate Continuous manufacture of allyl diglycol carbonate

C - Chemistry, Metallurgy

07

C

260/466.8

C07C 69/96 (2006.01) C07C 68/00 (2006.01) C07C 68/02 (2006.01)

Patent

CA 1121829

-I- ABSTRACT OF THE INVENTION A continuous process for the manufacture of allyl diglycol carbonate (ADC) from diethylene glycol bis-chloro- formate (Bis CF), allyl alcohol (AA) and alkali metal hydroxide produces a pure product of good quality, high yields and high throughput per unit volume of the reactor, The invention allows the recycle of an aqueous alcohol waste solution in a concentration below the azeotropic point by simple dis- tillation by employing a more concentrated alkali metal hydroxide and an allyl allele aqueous solution. The process comprises at least two reaction zones, a continuous physical separation zone for separating the high purity product and a distillation column for reclaiming the aqueous allyl alcohol solution below the azeotropic concentration.

330860

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