Process for the isolation of monochloroacetaldehyde

Details Process for the isolation of monochloroacetaldehyde Process for the isolation of monochloroacetaldehyde

C - Chemistry, Metallurgy

07

C

202/84

C07C 45/82 (2006.01) C07C 45/80 (2006.01)

Patent

CA 1171812

PROCESS FOR THE ISOLATION OF MONOCHLOROACETALDEHYDE ABSTRACT OF THE DISLOSURE The invention relates to a process for the isolation of chloroacetaldehyde which is obtained as a by-product during the synthesis of acetaldehyde from ethylene and air in an aqueous palladium/cupric chloride solution by the 2-stage process. The mixture to be worked-up to chloroacetaldehyde is taken from the acetaldehyde distillation column and trans- ferred to a distillation and extraction system, where it is fractionally condensed. The chloroacetaldehyde-containing fraction is extracted with water and the aqueous extract is subjected to purification distillation.

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