公开(公告)号：MY140112A

公开(公告)日：2009-11-30

申请号：MYPI20041329

申请日：2004-04-12

Applicant: BASF AG

Inventor： WARTINI ALEXANDER DR ,  DERNBACH MATTHIAS DR ,  MAAS STEFFEN DR

IPC: C07C29/141

Abstract: PROCESS FOR THE CATALYTIC HYDROGENATION OF METHYLOLALKANALS OF THE FORMULA WHERE R¹ AND R² ARE EACH, INDEPENDENTLY OF ONE ANOTHER, A FURTHER METHYLOL GROUP OR AN ALKYL GROUP HAVING FROM 1 TO 22 CARBON ATOMS OR AN ARYL OR ARALKYL GROUP HAVING FROM 6 TO 33 CARBON ATOMS, IN THE LIQUID PHASE OVER A HYDROGENATION CATALYST, WHEREIN THE pH OF THE HYDROGENATION FEED IS SET TO FROM 6.3 TO 7.8 BY ADDITION OF AT LEAST ONE TERTIARY AMINE.

公开(公告)号：MY128426A

公开(公告)日：2007-01-31

申请号：MYPI20014717

申请日：2001-10-10

Applicant: BASF AG

Inventor： DERNBACH MATTHIAS DR ,  SIGWART CHRISTOPH DR ,  HESSE MICHAEL DR ,  MAAS STEFFEN DR

IPC: B01J23/44 ,  C07C29/90 ,  C07C31/22

Abstract: A PROCESS IS PROVIDED FOR IMPROVING THE COLOR NUMBER OF POLYHYDRIC ALCOHOLS, ESPECIALLY TRIMETHYLOLPROPANE, BY CATALYTIC HYDROGENATION, THE POLYHYDRIC ALCOHOL USED IN THE HYDROGENATION HAVING BEEN PURIFIED BY DISTILLATION FOLLOWING ITS PREPARATION, WHEREIN THE HYDROGENATION IS CARRIED OUT IN THE PRESENCE OF A MACROPOROUS SUPPORTED HETEROGENEOUS CATALYST CONTAINING, AS THE ACTIVE METAL, AT LEAST ONE METAL OF SUBGROUPS VII TO X OF THE PERIODIC TABLE.