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    223.
    发明专利
    未知

    公开(公告)号：ES2207487T3

    公开(公告)日：2004-06-01

    申请号：ES00903595

    申请日：2000-01-20

    Applicant: BASF AG

    Inventor： MENGER VOLKMAR ,  ELLER KARSTEN ,  MEIER ANTON ,  HESSE MICHAEL

    IPC: B01J21/20 ,  B01J29/90 ,  B01J38/06 ,  C08G65/20 ,  C08G65/26

    Abstract: A process for working up at least partially deactivated polymerization catalysts for the polymerization or copolymerization of THF which are contaminated with the products of the polymerization or copolymerization of THF comprises(a) in a first step, cleaning the polymerization catalyst by treatment with steam at from 80 to 250° C. and a pressure of from 0.5 to 40 bar and, preferably,(b) in a second step, regenerating the clean polymerization catalyst.

    FOAM MATERIAL CONSISTING PREDOMINANTLY OF CARBON HAVING A HIGH INNER SURFACE AND METHOD FOR THE PRODUCTION THEREOF
    225.
    发明专利
    FOAM MATERIAL CONSISTING PREDOMINANTLY OF CARBON HAVING A HIGH INNER SURFACE AND METHOD FOR THE PRODUCTION THEREOF 未知

    公开(公告)号：AU2003266363A1

    公开(公告)日：2004-04-08

    申请号：AU2003266363

    申请日：2003-09-08

    Applicant: BASF AG

    Inventor： RUDLOFF JAN ,  DESSEIX MARYLINE ,  ROTERMUND UDO ,  HEMPEL RENATE ,  HESSE MICHAEL

    IPC: C04B38/00 ,  H01G11/24 ,  H01G11/32 ,  H01G11/48

    Abstract: A foam (I) comprises at least 70 wt.% of carbon with an average cell size of over 20 microns, a porosity of 35-99.5% , over 90% open cells, an internal surface area of over 50 m2/g with cell crosspieces that have a triangular cross-section with inwardly curved sides and pores in the cell framework material of 0.2-50 nm in size and a volume of 0.01-0.8 cm3/g. Independent claims are included for: (1) a powder material (II) prepared by comminution of the foam (I) and; (2) a process for the production of the foam (I) by pyrolysis of a polymer foam, comprising at least 30 wt.% of a polymer material having a nitrogen content of greater than 6 wt.%, porosity of 35-99.5%, open cell content of less than 1% and inorganic materials processed into the foam or applied onto the surface whereby during and/or after pyrolysis the foam treated with water vapor, carbon dioxide and/or oxygen at over 400 degreesC.

    226.
    发明专利
    未知

    公开(公告)号：ES2200500T3

    公开(公告)日：2004-03-01

    申请号：ES99906134

    申请日：1999-01-15

    Applicant: BASF AG

    Inventor： ELLER KARSTEN ,  RUTTER HEINZ ,  HESSE MICHAEL ,  BECKER RAINER

    IPC: B01J21/16 ,  C08G61/12 ,  C08G65/10 ,  C08G65/20 ,  C08G65/26

    Abstract: In a process for preparing polytetrahydrofuran, polytetrahydrofuran copolymers or diesters or monoesters thereof comprises polymerizing tetrahydrofuran in the presence of at least one telogen and/or comonomer over an acid-activated calcium montmorillonite as catalyst, the calcium montmorillonite has a BET surface area of at least 300 m2/g, an acidity of at least 0.02 mmol/g at pKa

    METHOD FOR THE SIMULTANEOUS PRODUCTION OF TETRAHYDROFURANS AND PYRROLIDONES
    230.
    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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