Method for producing aliphatic alpha, omega-amino nitriles

    公开(公告)号:AU9440898A

    公开(公告)日:1999-04-12

    申请号:AU9440898

    申请日:1998-09-08

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing aliphatic alpha-omega amino nitriles in the presence of a catalyst composed of (a) iron or an iron based compound or a mixture thereof (b) 0.01 to 5 wt. %, in relation to (a), a promoter based on 2, 3, 4, or 5 elements selected from the group comprising aluminum, silicon, zirconium, titanium, and vanadium, and (C) to 0.5 wt. % in relation to (a) a compound based on an alkaline metal or alkaline-earth metal. The inventive method is characterized in that the aliphatic alpha-omega dinitrile contains 1.0 ppm or more phosphorus. Catalysts are obtainable through the reductive and optional successive passivation of magnetite, whereby the catalysts have a BET surface of 3 to 10 m2/g, a total pore volume of 0.05 to 0.2 ml/g, an average pore diameter of 0.03 to 0.1 mm and a pore volume portion in the range of 0.01 to 0.1 mm of 50 to 70%.

    METHOD FOR PRODUCING ALIPHATIC ALPHA, OMEGA-AMINO NITRILES

    公开(公告)号:CA2304848A1

    公开(公告)日:1999-04-01

    申请号:CA2304848

    申请日:1998-09-08

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing aliphatic alpha, omega-amino nitriles in the presence of a catalyst composed of (a) iron or an iron based compound or a mixture thereof, (b) 0.01 to 5 wt. % in relation to (a) a promotor based on 2, 3, 4, or 5 elements selected from the group comprising aluminum, silicium, zirconium, titanium and vanadium and (c) 0 to 0.5 wt. % in relation to (a) a compound based on an alkaline metal or alkaline-earth metal. The inventive method is characterized in that the applied aliphatic alpha, omega-amino dinitrile contains 1.0 wt. ppm or more phosphor. Catalysts are obtainable through the reduction and optional successive passivation of a magnetite, whereby the catalysts have a BET surface of 3 to 10 m2/g, a total pore volume of 0.05 to 0.2 ml/g, an average pore diameter of 0.03 to 0.1 mm and a pore volume portion in the range of 0.01 to 0.1 mm of 50 to 70 %.

    CARRIER CATALYTIC CONVERTER FOR THE SELECTIVE HYDROGENATION OF ALKINES AND DIENES

    公开(公告)号:CA2393984C

    公开(公告)日:2009-09-08

    申请号:CA2393984

    申请日:2000-12-06

    Applicant: BASF AG

    Abstract: The invention relates to a catalytic converter for the selective hydrogenati on of alkines and dienes in C2-C5+ olefin mixtures. Said catalytic system contains (a) a metal from the tenth group of the periodic table of elements, (b) a metal from the eleventh group of the periodic table of elements, (c) optionally, a compound of a metal of the first or second group of the periodic table of elements, whereby said metals are supported on a carrier selected from the group consisting of silicium dioxide, titanium dioxide, zirconium oxides, spinelles, zinc aluminates, zinc titanates, aluminium silicates or mixtures of said substances. The metal stemming from the eleventh group of the periodic table of elements is homogeneously distributed over the cross-section of catalyst particles. The metal stemming from the tenth group of the periodic table of elements is located at the surface-proximate edge layer of said catalyst particles. Said catalytic converter is preferably produced by applying the metal from the eleventh group is preferably applied already during the production of the carrier by dipping it into a solution of a suitable metal salt.

    PROCEDIMIENTO PARA LA OBTENCION DE LACTAMAS CICLICAS.

    公开(公告)号:ES2250418T3

    公开(公告)日:2006-04-16

    申请号:ES01945063

    申请日:2001-04-30

    Applicant: BASF AG

    Abstract: Procedimiento para la obtención de lactamas cíclicas de la fórmula (II) en la que n y m pueden tener respectivamente los valores 0, 1, 2, 3, 4, 5, 6, 7, 8 y 9 y la suma formada por n + m supone al menos 3, preferentemente al menos 4, R1 y R2 significan grupos alquilo con 1 a 6 átomos de carbono, grupos cicloalquilo con 5 a 7 átomos de carbono o grupos arilo con 6 a 12 átomos de carbono, mediante reacción de un compuesto (I) de la fórmula en la que R1, R2, m y n tienen el significado anteriormente indicado y R significa grupos nitrilo, grupos de amida del ácido carboxílico y grupos de ácido carboxílico, con agua en presencia de un diluyente líquido orgánico en fase líquida, caracterizado porque a) se hace reaccionar el compuesto (I) con agua en la fase líquida en presencia de un diluyente líquido orgánico (III) para dar una mezcla (IV) que contiene una lactama (II), presentando el diluyente (III) con agua una ausencia de miscibilidad bajo determinadas condiciones cuantitativas, de presión yde temperatura, b) se transforma la mezcla de (IV) antes o tras la separación de amoníaco en condiciones cuantitativas, de presión y de temperatura, bajo las cuales se presenten en estado líquido el diluyente (III) y el agua y presenten una falta de miscibilidad, manteniéndose un sistema con dos fases formado por una fase (V), que presenta una mayor proporción en diluyente (III) que en agua, y una fase (VI), que presenta una mayor proporción en agua que en diluyente (III), c) se separa la fase (V) de la fase (VI) y d) se separan de la fase (V) el diluyente (III) y, en caso dado, los productos secundarios elegidos entre el grupo formado por productos de bajo punto de ebullición, productos de elevado punto de ebullición y por compuesto (I) no convertido, obteniéndose una lactama (II).

    METHOD FOR REDUCING THE CONTENT OF AN UNSATURATED AMINE IN A MIXTURE CONTAINING AN AMINO NITRILE, A DIAMINE, A DINITRILE OR MIXTURES THEREOF

    公开(公告)号:IN2925CH2004A

    公开(公告)日:2006-02-17

    申请号:IN2925CH2004

    申请日:2004-12-23

    Applicant: BASF AG

    Abstract: A process for reducing the level of an aliphatic monounsaturated amine (IV) in a mixture (V) containing an aminonitrile (I) or a diamine (II) or a dinitrile (III) or mixtures thereof as well as said mine (IV) by a) reacting said mixture (V) with an anionic nucleophile (VI) which contains a nucleophilic atom selected from the group consisting of oxygen, nitrogen and sulfur, which is capable of taking up an H + ion to form an acid having a pK a value in the range from 7 to 11, as measured in water at 25° C., and which has a relative nucleophilicity, as measured in methyl perchlorate/methanol at 25° C., in the range from 3.4 to 4.7 when said nucleophilic atom is oxygen, in the range from 4.5 to 5.8 when said nucleophilic atom is nitrogen, and in the range from 5.5 to 6.8 when said nucleophilic atom is sulfur, in an amount in the range from 0.01 to 10 mol per mole of said amine (IV) in said mixture (V) at a temperature in the range from 50 to 200° C. to obtain a mixture (VII), b) distilling said aminonitrile (I) or said diamine (II) or said dinitrile (III) or mixtures thereof from said mixture (VII) at a temperature in the range from 50 to 200° C. and at a pressure in the range from 0.1 to 100 kPa to obtain a bottom product (VIII), which comprises c) distilling an aminonitrile (I) or diamine (II) or dinitrile (III) or mixtures thereof from said bottom product (VIII) at a temperature which is lower than that chosen in step b).

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