公开(公告)号：CA2191893C

公开(公告)日：2004-01-20

申请号：CA2191893

申请日：1995-05-31

Applicant: BASF AG

Inventor： SCHNURR WERNER ,  FISCHER ROLF ,  WULFF-DORING JOACHIM ,  IRGANG MATTHIAS ,  NEUHAUSER HORST

IPC: C07D307/12 ,  B01J23/34 ,  C07D309/04 ,  C07D309/06 ,  C07D313/00

Abstract: Heterocyclic aldehydes having the formula (I), in which A, B stand for possibly substituted methylene groups; m, n = 1 to 5 and m+n > 2, are pre pared by hydrogenating carboxylic acids having the formula (IIa) or their esters (IIb) derived from C1-C10 alcohols at 200 to 450 ~C in the presence of a catalyst. The products thus obtained are useful as precursors of cyclohexeno ne type herbicides.

公开(公告)号：ES2170416T3

公开(公告)日：2002-08-01

申请号：ES97943884

申请日：1997-09-23

Applicant: BASF AG

Inventor： BECKER RAINER ,  BROCKER FRANZ JOSEF ,  KAIBEL GERD ,  PINKOS ROLF ,  WULFF-DORING JOACHIM

IPC: B01J25/02 ,  B01J8/02 ,  B01J8/06 ,  B01J10/00 ,  B01J19/00 ,  B01J19/24 ,  B01J19/26 ,  C07B61/00 ,  C07C29/17 ,  C07C31/20

Abstract: A process for preparing 1,4-butanediol by continuous catalytic hydrogenation of 1,4-butynediol comprises reacting 1,4-butynediol with hydrogen in the liquid continuous phase in the presence of a heterogeneous hydrogenation catalyst at from 20 to 300° C., a pressure of from 1 to 200 bar and values of the liquid-side volumetric mass transfer coefficient kLa of from 0.1 s-1 to 1 s-1a) using a catalyst suspended in the reaction medium, where if a packed bubble column is employed this is operated in the upflow mode and at a ratio of gas leaving the reaction vessel to gas fed to the reaction vessel of from 0.99:1 to 0.4:1, orb) passing the liquid and gas in cocurrent in an upward direction through a fixed-bed reactor operated in the gas-circulation mode while maintaining a ratio of the gas fed to the reaction vessel to gas leaving the reaction vessel of from 0.99:1 to 0.4:1.

公开(公告)号：MX9704701A

公开(公告)日：1997-10-31

申请号：MX9704701

申请日：1995-12-16

Applicant: BASF AG

Inventor： VICARI MAXIMILIAN ,  FLICK KLEMENS ,  MELDER JOHANN-PETER ,  SCHNURR WERNER ,  WULFF-DORING JOACHIM

IPC: B01J25/00 ,  B01J25/02 ,  B01J37/00 ,  C07B31/00 ,  C07C253/30

Abstract: La presente invencion se refiere a un catalizador de hidrogenacion basado en un aleacion de aluminio y de un metal de transicion que se elabora preparado un material amasado a partir de la aleacion y un ayudante, la conversion del material amasado en piezas moldeadas, la calcinacion de las piezas moldeadas y el tratamiento de las piezas moldeadas calcinadas con un hidroxido de metal alcalino, mediante un proceso en el que el ayudante que se utiliza es: (a) alcohol polivinilico y agua o (b) ácido esteárico, y el catalizador preparado de acuerdo con la invencion se utiliza para la hidrogenacion e hidrogenolisis, en particular la hidrogenacion parcial de alfa, omega-dinitrilos alifáticos para obtener alfa, omega-aminonitrilos alifáticos.

公开(公告)号：ES2187029T3

公开(公告)日：2003-05-16

申请号：ES98925581

申请日：1998-05-12

Applicant: BASF AG

Inventor： FISCHER ROLF ,  PINKOS ROLF ,  WULFF-DORING JOACHIM

IPC: B01J31/32 ,  B01J23/42 ,  B01J23/56 ,  B01J23/656 ,  B01J23/68 ,  B01J23/89 ,  B01J31/34 ,  C07B61/00 ,  C07C29/136 ,  C07C29/149 ,  C07C31/20 ,  C07D307/33

Abstract: In a process for preparing aliphatic alcohols by hydrogenating aliphatic carboxylic acids or anhydrides or esters thereof or lactones in the presence of a catalyst comprising Pt and Re, in the form of the metal or an oxide in each case, the catalyst further comprises at least one further element from the groups 5 to 12 and 14 and the lanthanides of the Periodic Table of the Elements in the form of the metal or an oxide.

公开(公告)号：AU6015001A

公开(公告)日：2001-10-08

申请号：AU6015001

申请日：2001-03-23

Applicant: BASF AG

Inventor： ARNOLD HEIKO ,  ERDBRUGGER CRISTINA FREIRE ,  HEIDEMANN THOMAS ,  MEYER GERALD ,  UNVERRICHT SIGNE ,  FRENZEL ANDREA ,  WULFF-DORING JOACHIM ,  ANSMANN ANDREAS

IPC: B01J35/06 ,  B01J23/42 ,  B01J23/44 ,  B01J23/48 ,  B01J23/50 ,  B01J23/70 ,  B01J23/755 ,  B01J37/02 ,  C07B61/00 ,  C07C5/02 ,  C07C5/03 ,  C07C5/08 ,  C07C7/163 ,  C07C7/167 ,  C07C11/04 ,  C07C11/06 ,  C07C11/08

Abstract: In a coated catalyst having a core and at least one shell surrounding the core, the core is made up of an inert support material, the shell or shells is/are made up of a porous support substance, with the shell being attached physically to the core, and a catalytically active metal selected from the group consisting of the metals of the 10th and 11th groups of the Periodic Table of the Elements is present in finely divided form or a precursor of the catalytically active metal is present in uniformly distributed form in the shell or shells. The coated catalyst of the present invention is suitable for the reduction of unsaturated hydrocarbons. Here, better selectivities than in the case of previously known coated catalysts can be achieved. A process for producing the coated catalyst is also described.

公开(公告)号：CA2403899A1

公开(公告)日：2001-10-04

申请号：CA2403899

申请日：2001-03-23

Applicant: BASF AG

Inventor： WULFF-DORING JOACHIM ,  UNVERRICHT SIGNE ,  FREIRE ERDBRUGGER CRISTINA ,  MEYER GERALD ,  ARNOLD HEIKO ,  ANSMANN ANDREAS ,  FRENZEL ANDREA ,  HEIDEMANN THOMAS

IPC: B01J35/06 ,  B01J23/42 ,  B01J23/44 ,  B01J23/48 ,  B01J23/50 ,  B01J23/70 ,  B01J23/755 ,  B01J37/02 ,  C07B61/00 ,  C07C5/02 ,  C07C5/03 ,  C07C5/08 ,  C07C7/163 ,  C07C7/167 ,  C07C11/04 ,  C07C11/06 ,  C07C11/08

Abstract: The invention relates to a shell catalyst with a core and at least one shell surrounding the core, said core being composed of an inert carrier material, and the at least one shell being composed of a porous carrier substance. The shell is physically adhered to the core and the at least one shell contains a catalytically active metal selected from the group of metals of the 10th and 11th group of the periodic table of elements in a finely divided form, or a precursor of the catalytically active metal in a uniformly divided form. The inventive shell catalyst is suitable for reducing unsaturated hydrocarbons a nd allows for better selectivities in comparison with shell catalysts known so far. The invention further relates to a method for producing the inventive shell catalyst.