Process for separating the catalyst system from the reaction...

Details Process for separating the catalyst system from the reaction... Process for separating the catalyst system from the reaction...

C - Chemistry, Metallurgy

07

C

260/536.5, 260/4

C07C 53/12 (2006.01) C07C 51/573 (2006.01) C07C 69/16 (2006.01)

Patent

CA 1188320

ABSTRACT OF THE DISCLOSURE: The disclosure relates to a process for separating the catalyst system from reaction mixtures which are obtained by reacting methyl acetate and/or dimethylether with carbon monoxide and optionally hydrogen at elevated temperatures to acetic anhydride and optionally ethylidene diacetate in the presence of a catalyst system consisting of carbonyl complexes of noble metals belonging to group VIII of the Periodic System, acetic acid, an organophosphorus or organo- nitrogen compound, methyl iodide and optionally compounds of carbonyl-yielding common metals, and which issue from the reaction zone under a pressure of 25 to 150 bars at a temperature of 100 to 250 C. More particularly, the reac- tion mixture coming from the reaction zone is introduced into a separator heated to 60 to 140°C and released to a pressure of 0.5 to 3.5 bars with spontaneous evaporation of the bulk of volatile constituents; the stream of liquid matter coming from the separator is delivered to a distill- ing zone and the bulk of still volatile constituents is distilled off therein under a pressure of 0.05 to 1 bar at a base temperature of 70 to 170°C; and catalyst solution retained as base product is recycled to the reaction zone.

415679

Affiliated with

Also associated with

Rating

Process for separating the catalyst system from the reaction... 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 separating the catalyst system from the reaction..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for separating the catalyst system from the reaction... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1233066