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    5.
    发明专利
    未知

    公开(公告)号：DE50114970D1

    公开(公告)日：2009-08-20

    申请号：DE50114970

    申请日：2001-04-30

    Applicant: BASF SE

    Inventor： OHLBACH FRANK ,  ANSMANN ANDREAS ,  BASSLER PETER ,  FISCHER ROLF-HARTMUTH ,  LUYKEN HERMANN ,  MAIXNER STEFAN ,  MELDER JOHANN-PETER

    IPC: C07D201/08 ,  C07D223/10 ,  C07B61/00 ,  C07D207/263 ,  C07D211/76 ,  C07D225/02

    Abstract: The invention relates to a method for producing cyclic lactams of the formula (II), wherein n and m may each represent 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 and the sum of n + m is at least 3, preferably at least 4, R and R represent C1-C6 alkyl, C5-C7 cycloalkyl or C6-C12 aryl groups, by reacting a compound of the formula (I), wherein R , R , m and n have the meaning indicated above, and R represents nitrile groups, carboxylic acid amide groups and carboxylic acid groups, with water vapor in the gaseous phase. The inventive method is further characterized in that a) the compound (I) is reacted with water vapor in the gaseous phase, adding an organic diluent (III) before or after the reaction, which diluent has a miscibility gap under certain quantitative, pressure and temperature conditions, said reaction resulting in a mixture (IV) that contains a lactam (II), b) adjusting the mixture (IV) before or after the removal of ammonia to quantitative, pressure and temperature conditions under which the diluent (III) and water are present in a liquid form and have a miscibility gap, and obtaining a two-phase system consisting of a phase (V) that has a higher proportion of diluent (III) than water, and a phase (VI) that has a higher proportion of water than diluent (III), c) separating phase (V) from phase (VI) and, d) removing from phase (V) the diluent (III) and optionally by-products selected from the group of the low-boilers, high-boilers and unreacted compound (I), and obtaining a lactam (II).

    Procedimiento para la obtención de ésteres de ácido 6-hidroxicaprónico
    6.
    发明专利
    Procedimiento para la obtención de ésteres de ácido 6-hidroxicaprónico 未知

    公开(公告)号：ES2393838T3

    公开(公告)日：2012-12-28

    申请号：ES09709624

    申请日：2009-01-29

    Applicant: BASF SE

    Inventor： PINKOS ROLF ,  SIRCH TILMAN ,  DR TEBBEN GERD-DIETER ,  FISCHER ROLF-HARTMUTH

    IPC: C07C29/50 ,  C07C45/33 ,  C07C51/367 ,  C07C51/487 ,  C07C59/01 ,  C07C67/08 ,  C07C69/675

    Abstract: Procedimiento para la obtención de ésteres de ácido 6-hidroxicaprónico a) oxidándose ciclohexano con oxígeno molecular o mezclas de oxígeno molecular, y gases inertes bajo las condiciones de reacción, para dar una mezcla de reacción que contiene como componentes principales hidroperóxido de ciclohexilo, ciclohexanol, ciclohexanona, ciclohexano no transformado, ácido 6hidroperoxicaprónico, ácido 6-hidroxicaprónico, ácido 5-formilvalérico y ácidos a, w-dicarboxílicos con cuatro a seis átomos de carbono, b) separándose la mezcla de reacción del paso a), tras adición de agua, en una fase orgánica que contiene ciclohexano y los compuestos de ciclohexano, y una fase acuosa que contiene ácidos carboxílicos, c) hidrogenándose por vía catalítica la fase acuosa de b), d) haciéndose reaccionar los ácidos carboxílicos contenidos en la fase acuosa con un alcohol que contiene 1 a 10 átomos de carbono para dar los correspondientes carboxilatos, y e) obteniéndose éster de ácido 6-hidroxicaprónico a partir de la mezcla de esterificado del paso d) mediante destilación, hidrogenándose al menos ácido 5-formilvalérico para dar ácido 6-hidroxicaprónico en el hidrogenado catalítico en el paso c), y empleándose como metal catalizador para el hidrogenado en el paso c) al menos un metal, seleccionado a partir del grupo de rutenio, níquel, cobalto, renio y cobre.

    7.
    发明专利
    未知

    公开(公告)号：AT435851T

    公开(公告)日：2009-07-15

    申请号：AT01927931

    申请日：2001-04-30

    Applicant: BASF SE

    Inventor： OHLBACH FRANK ,  ANSMANN ANDREAS ,  BASSLER PETER ,  FISCHER ROLF-HARTMUTH ,  LUYKEN HERMANN ,  MAIXNER STEFAN ,  MELDER JOHANN-PETER

    IPC: C07D201/08 ,  C07D223/10 ,  C07B61/00 ,  C07D207/263 ,  C07D211/76 ,  C07D225/02

    Abstract: The invention relates to a method for producing cyclic lactams of the formula (II), wherein n and m may each represent 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 and the sum of n + m is at least 3, preferably at least 4, R and R represent C1-C6 alkyl, C5-C7 cycloalkyl or C6-C12 aryl groups, by reacting a compound of the formula (I), wherein R , R , m and n have the meaning indicated above, and R represents nitrile groups, carboxylic acid amide groups and carboxylic acid groups, with water vapor in the gaseous phase. The inventive method is further characterized in that a) the compound (I) is reacted with water vapor in the gaseous phase, adding an organic diluent (III) before or after the reaction, which diluent has a miscibility gap under certain quantitative, pressure and temperature conditions, said reaction resulting in a mixture (IV) that contains a lactam (II), b) adjusting the mixture (IV) before or after the removal of ammonia to quantitative, pressure and temperature conditions under which the diluent (III) and water are present in a liquid form and have a miscibility gap, and obtaining a two-phase system consisting of a phase (V) that has a higher proportion of diluent (III) than water, and a phase (VI) that has a higher proportion of water than diluent (III), c) separating phase (V) from phase (VI) and, d) removing from phase (V) the diluent (III) and optionally by-products selected from the group of the low-boilers, high-boilers and unreacted compound (I), and obtaining a lactam (II).

    9.
    发明专利
    未知

    公开(公告)号：AT391554T

    公开(公告)日：2008-04-15

    申请号：AT01978378

    申请日：2001-09-20

    Applicant: BASF SE

    Inventor： OHLBACH FRANK ,  LUYKEN HERMANN ,  ANSMANN ANDREAS ,  FISCHER ROLF-HARTMUTH ,  MELDER JOHANN-PETER ,  BASSLER PETER

    IPC: B01J38/52 ,  B01J23/86 ,  B01J23/94 ,  C07B61/00 ,  C07C209/48 ,  C07C211/12

    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.

    10.
    发明专利
    未知

    公开(公告)号：AT471306T

    公开(公告)日：2010-07-15

    申请号：AT03757050

    申请日：2003-06-10

    Applicant: BASF SE

    Inventor： HESSE MICHAEL ,  SCHLITTER STEPHAN ,  BORCHERT HOLGER ,  SCHUBERT MARKUS ,  ROESCH MARKUS ,  BOTTKE NILS ,  FISCHER ROLF-HARTMUTH ,  WECK ALEXANDER ,  WINDECKER GUNTHER ,  HEYDRICH GUNNAR

    IPC: C07C29/149 ,  C07B61/00 ,  C07C31/20

    Abstract: The present invention relates to a process for preparing optionally alkyl-substituted 1,4-butanediol by two-stage catalytic hydrogenation in the gas phase of C 4 -dicarboxylic acids and/or of derivatives thereof having the following steps: a) introducing a gas stream of a C 4 -dicarboxylic acid or of a derivative thereof at from 200 to 300° C. and from 10 to 100 bar into a first reactor or into a first reaction zone of a reactor and catalytically hydrogenating it in the gas phase to a product which contains mainly optionally alkyl-substituted gamma-butyrolactone; b) introducing the product stream obtained in this way into a second reactor or into a second reaction zone of a reactor at a temperature of from 140° C. to 260° C. and catalytically hydrogenating it in the gas phase to optionally alkyl-substituted 1,4-butanediol; steps a) and b) being carried out at the same pressure; c) removing the desired product from intermediates, by-products and any unconverted reactants; d) optionally recycling unconverted intermediates into one or both hydrogenation stages, said hydrogenation stages each using a catalyst which comprises =5% by weight, preferably from 5 to 95% by weight, in particular from 20 to 90% by weight, of an oxidic support, and the product mixture removed from the first hydrogenation stage being introduced without further purification into the second hydrogenation stage.

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