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：MY131957A

公开(公告)日：2007-09-28

申请号：MYPI20023650

申请日：2002-09-30

Applicant: BASF AG

Inventor： KOCH MICHAEL DR ,  WARTINI ALEXANDER DR ,  SIRCH TILMAN ,  DERNBACH MATTHIAS DR

IPC: C07C29/88 ,  C07C29/90 ,  C07C31/22

Abstract: A PROCESS FOR REMOVING TRIALKYLAMMONIUM FORMATE FROM METHYLOLALKANES WHICH HAVE BEEN OBTAINED BY CONDENSATION OF FORMALDEHYDE WITH A HIGHER ALDEHYDE COMPRISES DECOMPOSING TRIALKYLAMMONIUM FORMATE AT ELEVATED TEMPERATURE IN THE PRESENCE OF A HYDROGEN-CONTAINING GAS OVER CATALYSTS COMPRISING AT LEAAST ONE METAL OF GROUPS 8 TO 12 OF THE PERIODIC TABLE.THE PROCESS MAKES IT POSSIBLE TO SEPARATE OFF THE TRIALKYLAMMONIUM FORMATE FROM METHYLOLALKANES PREPARED BY THE ORGANIC CANNIZZARO PROCESS OR BY THE HYDROGENATION PROCESS.

公开(公告)号：MY128842A

公开(公告)日：2007-02-28

申请号：MYPI20024454

申请日：2002-11-27

Applicant: BASF AG

Inventor： SIRCH TILMAN ,  KAIBEL GERD DR ,  WARTINI ALEXANDER DR ,  DERNBACH MATTHIAS DR

IPC: C07C29/38 ,  C07C29/80 ,  C07B61/00 ,  C07C29/141 ,  C07C31/22

Abstract: TRIMETHYLOLPROPANE IS ISOLATED FROM A REACTION MIXTURE WHICH HAS BEEN OBTAINED BY REACTION OF N-BUTYRALDEHYDE WITH FORMALDEHDE IN THE PRESENCE OF A BASE AND, IF APPROPRIATE, HYDROGENATION OF THE RESULTING MIXTURE BY DISTILLING THE MIXTURE BY MEANS OF A DIVIDING WALL COLUMN OR A DISTILLATION COLUMN WITH A PRECOLUMN OR A DISTILLATION COLUMN WITH AN AFTER-COLUMN. THE PROCESS HAS LOW CAPITAL COSTS AND A LOW ENERGY CONSUMPTION AND GIVES REDUCED FORMATION OF HIGH-BOILING BY-PRODUCTS.