公开(公告)号：MY131816A

公开(公告)日：2007-09-28

申请号：MYPI20010492

申请日：2001-02-05

Applicant: BASF AG

Inventor： WALCZUCH KARL-HEINZ ,  MULLER ROLF ,  KROKOSZINSKI ROLAND DR ,  GEISSLER BERNHARD DR

IPC: C07C45/50 ,  C07B61/00 ,  C07C47/02

Abstract: A LIQUID OUTPUT FROM A CONTINUOUS HYDROFORMYLATION, WHICH COMPRISES ESSENTIALLY ALDEHYDES, HIGH-BOILING BY-PRODUCTS,A HOMOGENEOUSLY DISSOLVED HYDROFORMYLATION CATALYST, UNREACTED OLEFINS, LOW-BOILING BYPRODUCTS AND DISSOLVED SYNTHESIS GAS, IS WORKED UP BY A PROCESS IN WHICH A) THE LIQUID HYDROFORMYLATION OUTPUT IS DEPRESSURIZED IN A FIRST DEPRESSURIZATION STAGE TO A PRESSURE WHICH IS FROM 2 TO 20 BAR BELOW THE REACTOR PRESSURE, RESULTING IN SEPARATION INTO A LIQUID PHASE AND A GAS PHASE, AND B) THE LIQUID PHASE OBTAINED IN THE FIRST DEPRESSURIZATION STAGE IS DEPRESSURIZED IN A SECOND DEPRESSURIZATION STAGE TO A PRESSURE WHICH IS LOWER THAN THE PRESSURE OF THE FIRST DEPRESSURIZATION STAGE, RESULTING IN SEPARATION INTO A LIQUID PHASE COMPRISING ESSENTIALLY HIGH-BOILING BY-PRODUCTS OF THE HYDROFORMYLATION, THE HOMOGENEOUSLY DISSOLVED HYDROFORMYLATION CATALYST AND SMALL AMOUNTS OF HYDROFORMYLATION PRODUCT AND UNREACTED OLEFIN AND A GAS PHASE 25 COMPRISING ESSENTIALLY THE MAJOR PART OF THE HYDROFORMYLATION PRODUCT, UNREACTED OLEFIN AND LOW-BOILING BY-PRODUCTS.(FIG 1)