公开(公告)号：DE10319437A1

公开(公告)日：2004-11-18

申请号：DE10319437

申请日：2003-04-30

Applicant: BASF AG

Inventor： SCHUBERT MARKUS ,  GERLACH TILL ,  HESSE MICHAEL ,  STEPHAN JUERGEN ,  BOEHM VOLKER ,  BRODHAGEN ANDREAS ,  POPLOW FRANK

IPC: B01J21/08 ,  B01J23/30 ,  B01J27/22 ,  C07C6/04 ,  C07C6/02 ,  B01J37/02

Abstract: Preparation of unsaturated compounds having a non-aromatic C-C double or triple bond (compound A) from another compound or a mixture of other compounds having a non-aromatic C-C double or triple bond (compound B), includes bringing the compound (B) into contact with a heterogeneous catalyst comprising carbides or oxycarbides of a transition element at 50-500[deg]C.

公开(公告)号：DE10309070A1

公开(公告)日：2004-09-16

申请号：DE10309070

申请日：2003-03-03

Applicant: BASF AG

Inventor： STEPHAN JUERGEN ,  SCHUBERT MARKUS ,  WEICHERT CHRISTIAN ,  RUPPEL WILHELM ,  RESCH PETER ,  ZIMDAHL SOEREN ,  MRZENA FRANK ,  MOLITOR ANDREAS ,  BERG STEFAN ,  FOHRMANN MATHIAS

IPC: B01J23/36 ,  B01J23/92 ,  B01J38/12 ,  B01J38/14 ,  C07C6/04 ,  B01J38/04

公开(公告)号：DE10225927A1

公开(公告)日：2003-12-24

申请号：DE10225927

申请日：2002-06-11

Applicant: BASF AG

Inventor： HESSE MICHAEL ,  SCHLITTER STEPHAN ,  BORCHERT HOLGER ,  SCHUBERT MARKUS ,  ROESCH MARKUS ,  BOTTKE NILS ,  FISCHER ROLF-HARTMUTH ,  WECK ALEXANDER ,  WINDECKER GUNTHER ,  HEYDRICH GUNNAR

IPC: B01J23/80 ,  C07B61/00 ,  C07C29/149 ,  C07C31/20 ,  C07C29/132 ,  C07D307/20 ,  C07D307/32

Abstract: The present invention relates to a process for preparing optionally alkyl-substituted 1,4-butanediol by two-stage catalytic hydrogenation in the gas phase of C 4 -dicarboxylic acids and/or of derivatives thereof having the following steps: a) introducing a gas stream of a C 4 -dicarboxylic acid or of a derivative thereof at from 200 to 300° C. and from 2 to 60 bar into a first reactor and catalytically hydrogenating it to a product which contains mainly optionally alkyl-substituted gamma-butyrolactone; b) converting the product stream into the liquid phase; c) introducing the product stream obtained in this way into a second reactor at a temperature of from 100° C. to 240° C. and a pressure of from 20 to 250 bar and catalytically hydrogenating it in the liquid phase to optionally alkyl-substituted 1,4-butanediol; d) removing the desired product from by-products and any unconverted reactants; e) optionally recycling unconverted intermediates into one or both hydrogenation stages, said hydrogenation stages both using a catalyst which comprises =5% by weight, preferably from 5 to 95% by weight, in particular from 20 to 90% by weight, of a support, said second reactor having a higher pressure than said first reactor, and the product mixture removed from said first reactor being introduced without further purification into said second reactor.

公开(公告)号：DE10133054A1

公开(公告)日：2003-01-16

申请号：DE10133054

申请日：2001-07-07

Applicant: BASF AG

Inventor： SCHLITTER STEPHAN ,  BORCHERT HOLGER ,  HESSE MICHAEL ,  SCHUBERT MARKUS ,  BOTTKE NILS ,  FISCHER ROLF-HARTMUTH ,  ROESCH MARKUS ,  HEYDRICH GUNNAR ,  WECK ALEXANDER

IPC: B01J23/89 ,  B01J37/02 ,  B01J37/03 ,  C07D307/08 ,  C07D307/33 ,  C07D315/00

Abstract: A catalyst (I) for the gas phase hydrogenation of 4C-dicarboxylic acids and/or derivatives, preferably maleic acid anhydride, comprises copper oxide (20-94 wt.%), palladium and/or a palladium compound (0.005-5 wt.%) and an oxide support (2-79.995 wt.%) comprising oxides of Al, Si, Zn, La, Ce, Group IIIa-VIIIa elements and/or Group IA and II elements. Independent claims are also included for: (i) a process for the production of the catalyst (I) by impregnation of an oxide supported copper oxide catalyst with a solution of a soluble palladium compound, drying and optionally calcining; and (ii) a process for the gas phase hydrogenation of 4C-dicarboxylic acids and/or derivatives, preferably maleic acid anhydride in the presence of the catalyst (I).