公开(公告)号：US3871971A

公开(公告)日：1975-03-18

申请号：US30117572

申请日：1972-10-26

Applicant: HOECHST AG

Inventor： SCHAUM HELMUT ,  GOSSEL HELMUT

IPC: C07C53/10 ,  B01J31/40 ,  B01J38/00 ,  C07C51/00 ,  C07C51/235 ,  C07C67/00 ,  B01D11/00

CPC classification number: B01J31/04 ,  B01J31/4092 ,  B01J2231/70 ,  B01J2531/72 ,  B01J2531/96 ,  C07C51/235 ,  Y02P20/584 ,  C07C53/08

Abstract: Process for the recovery of a manganese acetate catalyst, used in the preparation of acetic acid by oxydation of acetaldehyde, through extraction of the residue occurring in the distillative acetic acid working-up with water in the presence of organic solvent immiscible with water.

Abstract translation: 回收乙酸乙酯催化剂的方法，用于通过乙醛氧化制备乙酸，通过萃取在与水不混溶的有机溶剂存在下，在蒸馏乙酸中发生的残余物。