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    22.
    发明专利
    未知

    公开(公告)号：AT282056T

    公开(公告)日：2004-11-15

    申请号：AT02748813

    申请日：2002-06-24

    Applicant: BASF AG

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

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

    Abstract: Polytetrahydrofuran, polytetrahydrofuran copolymers, diesters or monoesters of these polymers are prepared by polymerization of tetrahydrofuran in the presence of at least one telogen and/or comonomer, which is in the form of shaped catalyst bodies or catalyst particles having a volume of the individual shape of the body or particle of at least 0.05 mm 3 , preferably at least 0.2 mm 3 , in particular 1 mm 3 , and has at least one of the features a) and b): a) a pore radius distribution having at least one maximum in the pore radius range from 100 to 5000 Å, b) a pore volume of catalyst pores having radii of 200-3000 Å of greater than 0.05 cm 3 /g and/or a pore volume of pores having radii of 200-5000 Å of greater than 0.075 cm 3 /g and/or a pore volume of pores having radii of >200 Å of greater than 0.1 cm 3 /g.

    METHOD FOR THE PRODUCTION OF 1,6-HEXANEDIOL
    26.
    发明专利
    METHOD FOR THE PRODUCTION OF 1,6-HEXANEDIOL 未知

    公开(公告)号：CA2508727A1

    公开(公告)日：2004-07-01

    申请号：CA2508727

    申请日：2003-12-03

    Applicant: BASF AG

    Inventor： KRUG THOMAS ,  HAUNERT ANDREA ,  FISCHER ROLF-HARTMUTH ,  ROEPER MICHAEL ,  STUER WOLFRAM ,  SIRCH TILMAN

    IPC: C07C29/17 ,  C07C29/149 ,  C07C31/20 ,  C07C67/347 ,  C07C69/593

    Abstract: The invention relates to a method for producing 1,6-hexanediol having a puri ty of > 99.5 wt. % by catalytic dimerisation of acrylic acid esters, catalyt ic hydrogenation of the thus obtained hexene diacidic diester in order to form 1.6-hexanediol. Said method consists in: a) dimerising C1- C8-acrylic acid esters in the presence of at least one rhodium compound in order to form mixtures predominantly of 2- and 3-hexene diacdic diesters, b) hydrating the obtained dimerisation discharge in the presence of chrome-free catalysts containing mainly copper as a hydrogenation component and c) purifying the thus obtained raw 1.6-hexanediol by fractionating distillation.

    METHOD FOR THE SIMULTANEOUS PRODUCTION OF TETRAHYDROFURANS AND PYRROLIDONES
    30.
    发明专利
    METHOD FOR THE SIMULTANEOUS PRODUCTION OF TETRAHYDROFURANS AND PYRROLIDONES 未知

    公开(公告)号：AU2003227027A1

    公开(公告)日：2003-09-16

    申请号：AU2003227027

    申请日：2003-02-28

    Applicant: BASF AG

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

    IPC: B01J23/72 ,  B01J23/80 ,  C07B61/00 ,  C07D207/26 ,  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.

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