Carbonylation process

Details Carbonylation process Carbonylation process

C - Chemistry, Metallurgy

07

C

260/529.4

C07C 53/08 (2006.01) C07C 51/12 (2006.01) C07C 51/14 (2006.01)

Patent

CA 1110273

IMPROVED CARBONYLATION PROCESS ABSTRACT OF THE DISCLOSURE There is provided an improved continuous homogeneous catalytic carbonylation process wherein a mixed gas stream is removed from the carbonylation reactor, condensable liquids separated from said gas stream and said gas stream vented, the improvement comprising contacting said gas stream with a plurality of hollow fiber membranes selectively permeable to hydrogen under conditions substantially non-degrading of the membranes generating a non-permeated gas stream of higher carbon monoxide content and recycling said non-permeated gas stream to the carbonylation process reactor. There is also provided for the recovery and recycle to the process of carbonylation products such as acetic or propionic acids by adsorption and removal from a solid adsorbent or absorption in a liquid absorbent.

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