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    61.
    发明专利
    未知

    公开(公告)号：DE50307562D1

    公开(公告)日：2007-08-09

    申请号：DE50307562

    申请日：2003-02-28

    Applicant: BASF AG

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

    IPC: C07D207/26 ,  B01J23/72 ,  B01J23/80 ,  C07B61/00 ,  C07D207/267 ,  C07D307/08

    Abstract: A process for coproducing alkyl-substituted or unsubstituted THF and pyrrolidones by catalytically hydrogenating C 4 -dicarboxylic acids and/or derivatives thereof in the gas phase in the presence of copper catalysts and reacting GBL with ammonia or primary amines to give pyrrolidones comprises a) hydrogenating C 4 -dicarboxylic acids and/or derivatives thereof in the gas phase at from 200 to 300° C., from 0.1 to 100 bar, catalyst hourly space velocities of from 0.01 to 1 kg of reactant/l of catalyst*hour and reactant/hydrogen molar ratios of from 20 to 800 in the presence of catalysts comprising copper, aluminum and/or zinc to give mixtures of THF and GBL, b) separating the hydrogenation effluent obtained by distillation into a THF/water mixture as the top product and a GBL-containing bottom product, c) separating the THF/water mixture from step b) in a distillation facility consisting of three columns by withdrawing water from the bottom of the first column, recycling water-containing THF from the second into the first column, passing a side stream of the first into the second column, recycling the bottom product of the third column into the first column and withdrawing a distillate at the top of the first column, wherein a side stream of the second column is passed into the third column and the pure THF is obtained as the top product of the third column, d) recovering GBL from the GBL-containing bottom product from step b) by distillation and e) reacting the GBL obtained with ammonia or amines to give corresponding pyrrolidones.

    CATALIZADOR Y PROCEDIMIENTO PARA LA OBTENCION DE POLITETRAHIDROFURANO.
    63.
    发明专利
    CATALIZADOR Y PROCEDIMIENTO PARA LA OBTENCION DE POLITETRAHIDROFURANO. 未知

    公开(公告)号：ES2231718T3

    公开(公告)日：2005-05-16

    申请号：ES02748813

    申请日：2002-06-24

    Applicant: BASF AG

    Inventor： SCHLITTER STEPHAN ,  SIGWART CHRISTOPH ,  DORFLINGER WALTER ,  HESSE MICHAEL ,  FISCHER ROLF-HARTMUTH

    IPC: B01J21/16 ,  B01J35/10 ,  C08G65/20 ,  C08G65/26

    Abstract: Catalizador para la obtención de politetrahidrofurano, copolímeros de politetrahidrofurano, diésteres o monoésteres de estos polímeros mediante polimerización de tetrahidrofurano en presencia de al menos un telógeno y/o comonómero estando presente el mismo en forma de cuerpos moldeados de catalizador o partículas de catalizador con un volumen del cuerpo moldeado o partícula individual de al menos 0, 05 mm3, preferentemente de al menos 0, 2 mm3 y particularmente de 0, 1 mm3 y mostrando este catalizador ambas características a) y b): a)Distribución de radios de poros con al menos un máximo de la distribución de poros en el intervalo de 100 hasta 5000 A de radios de poros, y b)Volumen de poros de poros de catalizador con radios de 2oo a 3000 A mayor que 0, 05 cm3/g y/o radios de 200 a 5000 A mayor que 0, 075 cm3/g y/o un radio de > 200 A mayor que 0, 1 cm3/g.

    64.
    发明专利
    未知

    公开(公告)号：DE50202060D1

    公开(公告)日：2005-02-24

    申请号：DE50202060

    申请日：2002-07-03

    Applicant: BASF AG

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

    IPC: B01J23/89 ,  B01J37/02 ,  B01J37/03 ,  C07D307/08 ,  C07D307/33 ,  C07D315/00

    Abstract: A catalyst (I) for the gas phase hydrogenation of 4C-dicarboxylic acids and/or derivatives, preferably maleic acid anhydride, comprises copper oxide (20-94 wt.%), palladium and/or a palladium compound (0.005-5 wt.%) and an oxide support (2-79.995 wt.%) comprising oxides of Al, Si, Zn, La, Ce, Group IIIa-VIIIa elements and/or Group IA and II elements. Independent claims are also included for: (i) a process for the production of the catalyst (I) by impregnation of an oxide supported copper oxide catalyst with a solution of a soluble palladium compound, drying and optionally calcining; and (ii) a process for the gas phase hydrogenation of 4C-dicarboxylic acids and/or derivatives, preferably maleic acid anhydride in the presence of the catalyst (I).

    65.
    发明专利
    未知

    公开(公告)号：AT273292T

    公开(公告)日：2004-08-15

    申请号：AT01984809

    申请日：2001-12-07

    Applicant: BASF AG

    Inventor： BORCHERT HOLGER ,  SCHLITTER STEPHAN ,  FISCHER ROLF-HARTMUTH ,  ROESCH MARKUS ,  STEIN FRANK ,  RAHN RALF-THOMAS ,  WECK ALEXANDER ,  KAIBEL GERD

    IPC: C07B61/00 ,  C07D307/08 ,  C07D307/33

    Abstract: The present invention relates to a process for the gas-phase hydrogenation of C4-dicarboxylic acids and/or their derivatives over a catalyst based on copper oxide to give substituted or unsubstituted gamma-butyrolactone and/or tetrahydrofuran, which comprises, which a first reaction zone in which the C4-dicarboxylic acid and/or its derivatives is/are reacted to give a mixture comprising a substituted or unsubstituted gamma-butyrolactone as main product and a subsequent second reaction zone in which the substituted or unsubstituted gamma-butyrolactone present in the mixture from the first hydrogenation step is reacted at a temperature lower than the temperature in the first hydrogenation step to give substituted or unsubstituted tetrahydrofuran.

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