Process for the manufacture of chloroacetaldehyde dimethyl...

Details Process for the manufacture of chloroacetaldehyde dimethyl... Process for the manufacture of chloroacetaldehyde dimethyl...

C - Chemistry, Metallurgy

07

C

260/647.6

C07C 43/313 (2006.01) C07C 41/54 (2006.01) C07C 41/58 (2006.01) C07C 43/317 (2006.01)

Patent

CA 1181101

PROCESS FOR THE MANUFACTURE OF CHLOROACETALDEHYDE DIMETHYL ACETAL ABSTRACT The invention relates to an improved process for the manufacture of chloroacetaldehyde dimethyl acetal in which low boiling constituents are distilled off completely or partially from the reaction mixture obtained by the reaction of vinyl acetate and chlorine in stoichiometric amounts in the presence of excess methanol, when the addition of chlorine is complete. The remaining liquid residue is neutralized with solid substances, such as oxides or carbonates of calcium and magnesium, while maintaining a temperature of from 20 to 60°C, until the aqueous extract has a pH of greater than 5. When neutralisation is complete, the reaction mixture is in the form of two separate liquid phases. Once the upper organic layer has been separated off, it is fractionally distilled, pure chloroacetaldehyde dimethyl acetal being obtained as the main fraction yields of more than 90%, calculated on the vinyl acetate used.

415055

Affiliated with

Also associated with

Rating

Process for the manufacture of chloroacetaldehyde dimethyl... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the manufacture of chloroacetaldehyde dimethyl..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the manufacture of chloroacetaldehyde dimethyl... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1193674