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    PRODUCTION OF 4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDINE AND 2,2,6,6-TETRAMETHYL-4-PIPERIDINE IMINE
    1.
    发明专利
    PRODUCTION OF 4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDINE AND 2,2,6,6-TETRAMETHYL-4-PIPERIDINE IMINE 失效

    公开(公告)号：JPH10291976A

    公开(公告)日：1998-11-04

    申请号：JP5339098

    申请日：1998-03-05

    Applicant: BASF AG

    Inventor： VOIT GUIDO DR ,  WITZEL TOM DR ,  JULIUS MANFRED DR

    IPC: C07D211/12 ,  B01J21/04 ,  B01J21/06 ,  B01J21/08 ,  B01J31/02 ,  C07B61/00 ,  C07D211/58

    Abstract: PROBLEM TO BE SOLVED: To obtain 4-amino-2,2,6,6-tetramethylpiperidine from 2,2,6,6- tetramethyl-4-piperidinone by an industrially excellent method in terms of cost by using a specific catalyst. SOLUTION: This 4-amino-2,2,6,6-tetramethylpiperidine of formula I is obtained by reacting 2,2,6,6-tetramethyl-4-piperidinone of formula II with ammonia in the presence of an acidic metal oxide catalyst or a solid acidic catalyst insoluble in a reaction mixture (except an ammonium-type inorganic and organic ion-exchanging substance) to obtain an imine substance of formula III, and subjecting to hydrogen addition in the presence of a hydrogenation catalyst. Preferably, aluminum oxide, silicon dioxide, bentonite, aluminum hydrosilicate of montmorillonite-type, aluminum silicate of erionite-type, etc., is used as the catalyst for obtaining the imine substance by the reaction.

    REDUCTION COUPLING OF NITROBENZENE AND REDOX CATALYST
    3.
    发明专利
    REDUCTION COUPLING OF NITROBENZENE AND REDOX CATALYST 失效

    公开(公告)号：JPH1081658A

    公开(公告)日：1998-03-31

    申请号：JP14768297

    申请日：1997-06-05

    Applicant: BASF AG

    Inventor： HAGEMEYER ALFRED DR ,  HEINEKE DANIEL DR ,  VOIT GUIDO DR ,  WITZEL TOM DR

    IPC: B01J23/18 ,  C07B61/00 ,  C07C245/08 ,  C07C291/08

    Abstract: PROBLEM TO BE SOLVED: To obtain azo(oxy)benzene useful as an intermediate for chemical industry, etc., in high efficiency by the reduction coupling of nitrobenzene in vapor phase at a high temperature using heterogeneous catalytic action of a specific redox catalyst having reduced or partially reduced form. SOLUTION: Azobenzene and azoxybenzene are produced by the reduction coupling of nitrobenzene in vapor phase at a high temperature using heterogeneous catalytic action of a specific redox catalyst having reduced or partially reduced form. The reducing catalyst contains one or more active metals such as Bi, V, Cr, Mn, Fe, Co, Pb, Mo, Ce, U, Sn, Sb, Cu, La, W, Nb, Pd, Pt, Ni and In. Nitrobenzene is passed on the redox catalyst together with one or more kinds of gaseous reducing agents free from hydrogen for the deoxidization of nitrobenzene. The average oxidized state of the active metal of the redox catalyst is lower than the maximum oxidized state stable under each reaction condition by >=0.5 before introducing nitrobenzene together with the reducing agent.

    PRODUCTION OF AMINE AND CATALYST THEREFOR
    4.
    发明专利
    PRODUCTION OF AMINE AND CATALYST THEREFOR 失效

    公开(公告)号：JPH11180967A

    公开(公告)日：1999-07-06

    申请号：JP27367898

    申请日：1998-09-28

    Applicant: BASF AG

    Inventor： WULFF-DAERING JOACHIM DR ,  HESSE MICHAEL DR ,  MELDER JOHANN-PETER DR ,  BUSKENS PHILIPP DR ,  VOIT GUIDO DR ,  FUNKE FRANK DR

    IPC: C07D295/02 ,  B01J23/755 ,  B01J23/889 ,  C07B61/00 ,  C07C209/16 ,  C07D295/023

    Abstract: PROBLEM TO BE SOLVED: To provide a method for producing an amine at a high conversion without yielding by-products, and to obtain a catalyst for producing the amine. SOLUTION: This method comprises production of an amine by the reaction of a primary or secondary alcohol with a nitrogen compound selected from ammonia and primary and secondary amines at 80-250 deg.C, 0.1-40 MPa in the presence of a catalyst consisting of zirconium, copper, and nickel. The catalytically active ingredient contains 20-85 wt.% of an oxygen-containing zirconium compound (as calculated as ZrO2 ), 1-30 wt.% of an oxygen-containing copper compound (as calculated as CuO), 4-70 wt.% of an oxygen-containing nickel compound (as calculated as NiO), and 0-10 wt.% of an oxygen-containing aluminum and/or manganese compound(s) (as calculated as Al2 O3 and/or MnO2 ), but no oxygen-containing cobalt or molybdenum compound.

    METHOD FOR REMOVING WATER AND AMMONIA FROM EFFLUENT FROM BENZOPHENONE IMINE REACTOR
    6.
    发明专利
    METHOD FOR REMOVING WATER AND AMMONIA FROM EFFLUENT FROM BENZOPHENONE IMINE REACTOR 失效

    公开(公告)号：JPH10130218A

    公开(公告)日：1998-05-19

    申请号：JP28173797

    申请日：1997-10-15

    Applicant: BASF AG

    Inventor： VOIT GUIDO DR ,  DERNBACH MATTHIAS DR ,  BECK KARL ,  HOLDERBAUM MARTIN DR ,  WEYER HANS-JUERGEN DR

    IPC: C07C249/02 ,  C07C251/24

    Abstract: PROBLEM TO BE SOLVED: To produce a stable benzophenone imine free from a reverse reaction to form benzophenone during storage by distilling ammonia and also removing water using distillation or using non-distillation means from an effluent of a benzophenone imine reaction. SOLUTION: This method is composed of the processes distilling ammonia and removing water using distillation or using non-distillation means from an effluent of a benzophenone imine reactor generated by catalytic reaction of a benzophenone of the formula [R and R are independently a halogen, hydroxy, a 6-10C aryl, a 1-12C alkyl, etc.; (m) and (n) are each independently an integer of 0-5] and ammonia. The distillation is preferably carried out at 20-200 deg.C under a pressure of 1-1,000 mbar.

    8.
    发明专利
    未知

    公开(公告)号：DE19756400A1

    公开(公告)日：1999-06-24

    申请号：DE19756400

    申请日：1997-12-18

    Applicant: BASF AG

    Inventor： VOIT GUIDO DR ,  WITZEL TOM DR ,  BREITSCHEIDEL BORIS DR ,  LUYKEN HERMANN ,  ROS KARL-HEINZ DR ,  WAHL PETER DR

    IPC: C07C209/26 ,  C07C209/48 ,  C07C209/52 ,  C07C211/36

    Abstract: 3-Aminomethyl-3,5,5-trimethyl-cyclohexylamine (IPDA) with a cis:trans isomer ratio of at least 70/30 is obtained by catalytic imination of 3-cyano-3,5,5-trimethyl-cyclohexanone (IPN) followed by catalytic hydrogenation of the resulting imine in presence of an acid. A process for the production of IPDA with a cis:trans isomer ratio of at least 70/30 comprises: (a) imination of IPN with ammonia in presence of an imination catalyst at 20-150 degrees C and 1.5-30 Mpa, and (b) hydrogenation of the resulting imine at 80-160 degrees C and 5-30 Mpa in presence of ammonia on catalysts containing copper and/or a Group VIII metal and also in presence of an acid in amounts corresponding to an acid number of 0.1-2 based on the IPN used.

    Production of aliphatic alpha ,w-amino-nitrile compounds
    9.
    发明专利
    Production of aliphatic alpha ,w-amino-nitrile compounds 未知

    公开(公告)号：DE19742221A1

    公开(公告)日：1999-03-25

    申请号：DE19742221

    申请日：1997-09-24

    Applicant: BASF AG

    Inventor： VOIT GUIDO DR ,  BOHNSACK ANDREAS DR ,  FISCHER ROLF DR ,  BASLER PETER DR ,  LUYKEN HERMANN ,  MERGER MARTIN DR ,  FLICK KLEMENS DR

    IPC: B01J23/745 ,  C07B61/00 ,  C07C253/30 ,  B01J23/78 ,  C07C255/24 ,  C07C255/26

    Abstract: Aliphatic alpha ,w-dinitriles with a phosphorus content of 1.0 ppm or more by weight (ppm wt.) are used for the production of alpha ,w-aminonitriles by partial hydrogenation in presence of a special iron-based catalyst containing a promoter based on aluminium, silicon, zirconium, titanium and/or vanadium. A process for the production of aliphatic alpha ,w-aminonitriles comprises the partial hydrogenation of corresponding dinitriles with a phosphorus content of 1.0 ppm wt. or more in presence of a catalyst containing (a) iron and/or an iron compound, (b) 0.01-5 wt% (based on a) of a promoter based on 2, 3, 4 or 5 elements selected from Al, Si, Zr, Ti and V, and (c) 0-0.5 wt% of an alkali or alkaline earth metal compound. An Independent claim is also included for catalysts with the above composition obtained by the reduction and optional passivation of magnetite, showing a BET surface of 3-10 m /g, a total pore volume of 0.05-0.2 ml/g and an average pore diameter of 0.03-0.1 micron, with 50-70% (by volume) of the pores in the range from 0.01 to 0.1 microns.

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