公开(公告)号：DE19517821A1

公开(公告)日：1996-11-21

申请号：DE19517821

申请日：1995-05-18

Applicant: BASF AG

Inventor： FUCHS EBERHARD DR ,  WITZEL TOM DR ,  FLICK KLEMENS DR

IPC: C07D201/08 ,  C07D223/10

Abstract: Production of cyclic lactams by the reaction of amino carboxylic acid nitriles with water, performed in the liquid phase in the presence of heterogeneous catalysts based on titanium dioxide with a rutile content in the range from 0.1 to 95 wt.% and an anatase content in the range from 99.9 to 5 wt.% in relation to the total titanium dioxide content.

公开(公告)号：DE4446893A1

公开(公告)日：1996-07-04

申请号：DE4446893

申请日：1994-12-27

Applicant: BASF AG

Inventor： MELDER JOHANN-PETER DR ,  SCHNURR WERNER DR ,  FLICK KLEMENS DR ,  EBEL KLAUS DR ,  WITZEL TOM DR ,  FISCHER ROLF DR ,  HARDER WOLFGANG DR ,  REHFINGER ALWIN DR

IPC: B01J23/76 ,  B01J23/889 ,  B01J27/18 ,  B01J37/02 ,  C07B61/00 ,  C07C253/30 ,  C07C255/24 ,  B01J23/89 ,  C07B43/04

Abstract: Aliphatic alpha,omega-aminonitriles are prepared by partial hydrogenation of aliphatic alpha,omega-dinitriles at elevated temperatures and superatmospheric pressure in the presence of a solvent and of a catalyst by a process which comprises using a catalyst which (a) contains a compound based on a metal selected from the group consisting of nickel, cobalt, iron, ruthenium and rhodium and (b) contains from 0.01 to 25% by weight, based on (a), of a promoter based on a metal selected from the group consisting of palladium, platinum, iridium, osmium, copper, silver, gold, chromium, molybdenum, tungsten, manganese, rhenium, zinc, cadmium, lead, aluminum, tin, phosphorus, arsenic, antimony, bismuth and rare earth metals and (c) from 0 to 5% by weight, based on (a), of a compound based on an alkali metal or on an alkaline earth metal. with the proviso that the component (a) is not based on iron or iron and one of the metals selected from the group consisting of cobalt, ruthenium and rhodium when (b) is a promoter based on a metal selected from the group consisting of titanium, manganese, chromium and molybdenum, and with the further proviso that, when a compound based on only ruthenium or rhodium or ruthenium and rhodium or nickel and rhodium is selected as component (a), the promoter (b) may be dispensed with.

公开(公告)号：DE19500366C1

公开(公告)日：1996-05-02

申请号：DE19500366

申请日：1995-01-09

Applicant: BASF AG

Inventor： HEINEKE DANIEL DR ,  FLICK KLEMENS DR ,  WUENSCH MARTIN DR

IPC: B01J23/44 ,  B01J37/02 ,  C07B61/00 ,  C07C5/03 ,  C07C5/05 ,  C07C5/08 ,  C07C5/09 ,  C07C9/06 ,  C07C11/06

Abstract: New supported Pd catalysts with a Pd content of 0.001-2 wt.%, in which the Pd is present in a surface layer less than 5000 nm thick, are obtd. by treating a support comprising Al2O3, SiO2, ZrO2 and/or TiO2 with a Pd sol. either by impregnating the support with the sol or by spraying the sol onto the heated support.

公开(公告)号：DE4339138A1

公开(公告)日：1995-05-18

申请号：DE4339138

申请日：1993-11-16

Applicant: BASF AG

Inventor： FLICK KLEMENS DR ,  POSSELT DIETMAR DR ,  POLANEK PETER DR

IPC: B01J23/44 ,  B01J23/50 ,  B01J37/00 ,  B01J37/02 ,  C07C5/05 ,  C07C5/09 ,  C10G45/34 ,  B01J31/06 ,  C07C11/08

Abstract: Supported catalysts, obtainable by a) dissolving a catalytically active component or precursor compound thereof in a solvent, b) adding to the solution thus obtained an organic polymer which has the ability to bind at least ten times its own weight of water, c) subsequent mixing of the polymer with a catalyst support material, d) shaping the composition thus obtained, drying and calcination, a process for the production thereof and use thereof.