公开(公告)号：US20230202954A1

公开(公告)日：2023-06-29

申请号：US17813213

申请日：2020-12-16

申请人： ExxonMobil Chemical Patents Inc.

发明人： Hans Goris ,  Dries Timmermans ,  Stephen Beadle ,  Thomas Wesselmann ,  Alex Carpenter ,  Travis Reine ,  Edwin Kooke ,  Byron Sevin ,  Zsigmond Varga ,  Bradley Kontra

IPC分类号： C07C45/50 ,  B01J31/20

CPC分类号： C07C45/505 ,  B01J31/20 ,  B01J2531/845 ,  B01J2231/321

摘要： Catalyst preforming rates during hydroformylation may decrease in the presence of carbonates. Carbonate mitigation methods may comprise treating a hydroformylation reaction product with an aqueous carboxylic acid under oxidizing conditions to form a deactivated catalyst aqueous solution having a pH of about 4 or less, reducing the hydroformylation reaction product to form a reduced reaction product, conveying a gas stream through the reduced reaction product to strip carbon dioxide therefrom, contacting caustic aqueous solution with the stripped reduced reaction product to form partially spent caustic aqueous solution, combining at least a portion of the partially spent caustic aqueous solution with the deactivated catalyst aqueous solution to form a combined aqueous mixture sufficiently acidic to decompose carbonate, and extracting a Group 9 transition metal carboxylate from the combined aqueous mixture into an organic phase.