СПОСОБ ГИДРИРОВАНИЯ АЛЬФА-, ОМЕГА-ДИНИТРИЛОВ И КАТАЛИТИЧЕСКАЯ СМЕСЬ

    公开(公告)号:EA003285B1

    公开(公告)日:2003-04-24

    申请号:EA200000894

    申请日:1999-02-23

    Applicant: BASF AG

    Abstract: Описываютсяспособгидрированияα-, ω-динитриловв присутствиикаталитическойсмеси, содержащей(а) железоилисоединениенаосновежелезаилиегосмесей,(б) от 0,001 до 0,3 мас.%, впересчетенакомпонент (а), промоторанаоснове 2, 3, 4 или 5 элементов, выбранныхизгруппы, включающейалюминий, кремний, цирконий, титан, ванадий,(в) от 0 до 0,3 мас.%, впересчетенакомпонент (а) иизрасчетанаоксид, соединениянаосновещелочногои/илищелочно-земельногометалла, атакже(г) от 0,001 до 1 мас.%, впересчетенакомпонент (а), марганца,атакжекаталитическаясмесьуказанногосостава, получаемаявосстановлениемс последующей, принеобходимости, пассивациеймагнетита, котораяможетприменятьсяв качествекатализаторадлягидрированияα-ω-динитрилов.

    METHOD FOR THE PRODUCTION OF CAPROLACTAM

    公开(公告)号:CA2409357A1

    公开(公告)日:2002-11-15

    申请号:CA2409357

    申请日:2001-06-13

    Applicant: BASF AG

    Abstract: A process is provided for the preparation of caprolactam from a compound of formula (I):in which R is a carboxamide, carboxylic acid or carboxylic acid ester group,whereina) a compound (I) or a mixture of such compounds, in the presence of ammonia and optionally a liquid diluent (VI), is hydrogenated with hydrogen in the presence of a catalyst (II) to give a mixture (III),b) the hydrogen and the catalyst (II) are separated from the mixture (III) to give a mixture (IV), andc) the mixture (IV), optionally in the presence of a liquid diluent (VII), is converted to caprolactam in the presence of a catalyst (V).

    184.
    发明专利
    未知

    公开(公告)号:AT220658T

    公开(公告)日:2002-08-15

    申请号:AT99942875

    申请日:1999-08-17

    Applicant: BASF AG

    Abstract: A process for the coproduction of 6-aminocapronitrile and hexamethylenediamine starting from adiponitrile bya) hydrogenating adiponitrile in the presence of a catalyst comprising an element of the eighth transition group as catalytically active component, to obtain a mixture comprising 6-aminocapronitrile, hexamethylenediamine, adiponitrile and high boilers,b) distillatively removing hexamethylenediamine from the mixture comprising 6-aminocapronitrile, hexamethylenediamine, adiponitrile and high boilers, and eithercl) distillatively removing 6-aminocapronitrile, and thend1) distillatively removing adiponitrile, orc2) simultaneously distillatively removing 6-aminocapronitrile and adiponitrile into separate fractionsis characterized by base of column temperatures below 185° C. in steps d1) or c2).

    Method for reducing the content of an unsaturated amine in a mixture containing an amine and a nitrile

    公开(公告)号:AU3321302A

    公开(公告)日:2002-06-11

    申请号:AU3321302

    申请日:2001-11-29

    Applicant: BASF AG

    Abstract: A process is provided for reducing the content of a monounsaturated aliphatic amine (III) in a mixture (IV) containing an aminonitrile (I) or a diamine (II), or mixtures thereof, and the amine (III), whereina) the mixture (IV) is reacted with an anionic nucleophile (V),which contains a nucleophilic atom selected from the group comprising oxygen, nitrogen and sulfur,which is capable of taking up an H ion to form an acid with a pKa ranging from 7 to 11, measured in water at 25° C., andwhich has a relative nucleophilicity, measured in methyl perchlorate/methanol at 25° C.,ranging from 3.4 to 4.7 when oxygen is the nucleophilic atom,ranging from 4.5 to 5.8 when nitrogen is the nucleophilic atom, andranging from 5.5 to 6.8 when sulfur is the nucleophilic atom,in an amount ranging from 0.01 to 10 mol per mole of amine (III) in the mixture (IV), to give a mixture (VI), andb) the aminonitrile (I) or the diamine (II), or mixtures thereof, are distilled from the mixture (VI) at a temperature ranging from 50 to 170° C. and a pressure ranging from 0.5 to 100 kPa.

    186.
    发明专利
    未知

    公开(公告)号:DE10056839A1

    公开(公告)日:2002-05-23

    申请号:DE10056839

    申请日:2000-11-16

    Applicant: BASF AG

    Abstract: Nitrite is hydrogenated to primary amine using an activated macroporous Raney catalyst comprising alpha -alumina and transition metal(s), obtained by (i) shaping kneadable composition comprising an alloy, a shaping aid, water and a pore former, (ii) calcining and activating by treating with aqueous alkali metal hydroxide solution and (iii) rinsing with aqueous alkali metal hydroxide solution and water. Hydrogenating nitrite to primary amine involves using activated macroporous Raney catalyst comprising alpha -alumina and transition metal(s), such as iron, cobalt, nickel, titanium, zirconium, chromium and manganese. The Raney catalyst is obtained by preparing a kneadable composition comprising an alloy, a shaping aid, water and a pore former, which is then shaped to form a component. The shaped component is calcined and activated by treating with aqueous alkali metal hydroxide solution. The catalyst obtained is rinsed with aqueous alkali metal hydroxide solution and water. Independent claims are also included for the following: (1) a macroporous Raney catalyst; and (2) the production of a macroporous Raney catalyst.

    187.
    发明专利
    未知

    公开(公告)号:DE59803655D1

    公开(公告)日:2002-05-08

    申请号:DE59803655

    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%.

    189.
    发明专利
    未知

    公开(公告)号:DE10047703A1

    公开(公告)日:2002-04-11

    申请号:DE10047703

    申请日:2000-09-25

    Applicant: BASF AG

    Abstract: A process is provided for the regeneration of a heterogeneous catalyst used for the preparation of compounds containing NH 2 groups by the hydrogenation, with hydrogen, of compounds containing at least one unsaturated carbon-nitrogen bond, wherein a) the feed of the compound to be hydrogenated is stopped and b) the heterogeneous catalyst is treated with a compound of the formula R 1 R 2 N-CO-R 3 (I), in which R 1 is hydrogen or C 1 -C 4 alkyl and R 2 , R 3 independently of one another are each hydrogen or C 1 -C 4 alkyl or together are a C 3 -C 6 alkylene group, or mixtures of such compounds, at a pressure ranging from 0.1 to 30 MPa and a temperature ranging from 100 to 300° C., with the proviso that the compound of formula (I) is in liquid form during the treatment.

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