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    21.
    发明专利
    未知

    公开(公告)号：ES2158511T3

    公开(公告)日：2001-09-01

    申请号：ES97909303

    申请日：1997-09-22

    Applicant: BASF AG

    Inventor： MASSONNE KLEMENS ,  BECKER RAINER ,  NEUHAUSER HORST ,  ZIMMERMANN HORST ,  REIF WOLFGANG ,  CRAMERS PETER

    IPC: C07D307/88

    Abstract: PCT No. PCT/EP97/05186 Sec. 371 Date Apr. 1, 1999 Sec. 102(e) Date Apr. 1, 1999 PCT Filed Sep. 22, 1997 PCT Pub. No. WO98/14441 PCT Pub. Date Apr. 9, 1998A process for preparing phthalides of the general formula I, where R1, R2, R3 and R4 are independently hydrogen, C1-C4-alkyl or C1-C4-alkoxy, by hydrogenating phthalic anhydrides of the general formula II, where R1, R2, R3 and R4 are each as defined above, with hydrogen in the presence of suspended catalysts of the Raney type in a hydrogenation apparatus by using a mixing apparatus to mix a liquid phase, which includes the catalyst and the phthalic anhydride used and resulting phthalide, and a gas phase, which includes the hydrogenating hydrogen, comprises using the mixing apparatus to introduce a mixing intensity of at least 50 W/l into the liquid phase.

    Process for preparing polyoxytetramethylene glycol
    23.
    发明专利
    Process for preparing polyoxytetramethylene glycol 未知

    公开(公告)号：CZ288205B6

    公开(公告)日：2001-05-16

    申请号：CZ20002850

    申请日：2000-08-03

    Applicant: BASF AG

    Inventor： SIGWART CHRISTOPH ,  FISCHER ROLF ,  ELLER KARSTEN ,  BECKER RAINER ,  PLITZKO KLAUS-DIETER ,  HEILEN GERD

    IPC: C08G18/48 ,  C08G18/67 ,  C08G63/66 ,  C08G65/10 ,  C08G65/20 ,  C08G65/26 ,  C08G65/28 ,  C08G69/40

    Abstract: In the present invention there is disclosed a process for preparing polyoxytetramethylene glycol, which preparation process comprises reaction of tetrahydrofuran and but-2-ine-1,4-diol copolymer in the presence of hydrogen at a temperature ranging from 20 degC to 300 degC and at pressure within the range of 0.1 MPa to 30 MPa on a hydrogenation catalyst, whereby this tetrahydrofuran and but-2-ine-1,4-diol copolymer is prepared by polymerization of tetrahydrofuran on a heterogeneous acidic polymerization catalyst having acidity of acid centers pKia less than +2 in concentration of at least 0.005 mmol per gram of the catalyst, in the presence of but-2-ine-1,4-diol. For this preparation process a variety of polymerization catalysts can be used. For hydrogenation it is preferred to use a hydrogenation catalyst containing at least one element being selected from the groups Ib, VIIb or VIIIb of the Periodic System of Elements, particularly a heterogeneous hydrogenation catalyst.

    24.
    发明专利
    未知

    公开(公告)号：DE59701672D1

    公开(公告)日：2000-06-15

    申请号：DE59701672

    申请日：1997-09-23

    Applicant: BASF AG

    Inventor： SIGWART CHRISTOPH ,  ELLER KARSTEN ,  BECKER RAINER ,  PLITZKO KLAUS-DIETER ,  FISCHER ROLF ,  STEIN FRANK ,  MUELLER ULRICH ,  HESSE MICHAEL

    IPC: C08G65/10 ,  B01J23/24 ,  C08G18/48 ,  C08G65/20 ,  C08G65/28

    Abstract: PCT No. PCT/EP97/05204 Sec. 371 Date Apr. 1, 1999 Sec. 102(e) Date Apr. 1, 1999 PCT Filed Sep. 23, 1997 PCT Pub. No. WO98/15589 PCT Pub. Date Apr. 16, 1998Polytetrahydrofuran, copolymers of tetrahydrofuran and 2-butyne-1,4-diol, diesters of these polymers with C2-C20-monocarboxylic acids or monoesters of these polymers with C1-C10-monocarboxylic acids are prepared by polymerization of tetrahydrofuran in the presence of one of the telogens water, 1,4-butanediol, 2-butyne-1,4-diol, polytetrahydrofuran having a molecular weight of from 200 to 700 Dalton, a C1-C10-monocarboxylic acid or an anhydride of a C2-C20-monocarboxylic acid or a mixture of these telogens over a heterogeneous supported catalyst which comprises a catalytically active amount of an oxygen-containing molybdenum and/or tungsten compound on an oxidic support material and which has been calcined at from 5OO DEG C. to 1OOO DEG C. after application of the precursor compounds of the oxygen-containing molybdenum and/or tungsten compounds onto the support material precursor, wherein the catalyst is activated by treatment with a reducing agent before it is used as a polymerization catalyst.

    METHOD OF PRODUCING POLYTETRAHYDROFURANE
    27.
    发明专利
    METHOD OF PRODUCING POLYTETRAHYDROFURANE 未知

    公开(公告)号：HUT78051A

    公开(公告)日：1999-07-28

    申请号：HU9901081

    申请日：1995-09-21

    Applicant: BASF AG

    Inventor： BECKER RAINER ,  ELLER KARSTEN ,  FISCHER ROLF ,  HEILEN GERD ,  HESSE MICHAEL ,  PLITZKO KLAUS-DIETER ,  SIGWART CHRISTOPH

    IPC: B01J23/24 ,  C08G65/10 ,  C08G65/20 ,  C08G65/26 ,  C08G65/28

    Abstract: PCT No. PCT/EP95/03651 Sec. 371 Date Mar. 10, 1997 Sec. 102(e) Date Mar. 10, 1997 PCT Filed Sep. 21, 1995 PCT Pub. No. WO96/09335 PCT Pub. Date Mar. 28, 1996A process for the preparation of polytetrahydrofuran or polytetrahydrofuran monoesters of C1-C10 monocarboxylic acids by the polymerization of tetrahydrofuran over a heterogeneous catalyst in the presence of one of the telogens water, 1,4-butanediol or polytetrahydrofuran having a molecular weight of from 200 to 700 dalton or a C1-C10 monocarboxylic acid or mixtures of these telogens, wherein a supported catalyst is used as catalyst, which contains a catalytically active amount of an oxygen-containing tungsten or molybdenum compound or mixtures of these compounds on an oxidic support material and which was calcined at temperatures ranging from 500 DEG to 1000 DEG C. following the application of the precursor compounds of said oxygen-containing molybdenum and/or tungsten compounds to the support material precursor.

    Method of producing polytetrahydrofurane
    30.
    发明专利
    Method of producing polytetrahydrofurane 未知

    公开(公告)号：AU690340B2

    公开(公告)日：1998-04-23

    申请号：AU3607495

    申请日：1995-09-21

    Applicant: BASF AG

    Inventor： BECKER RAINER ,  SIGWART CHRISTOPH ,  HESSE MICHAEL ,  FISCHER ROLF ,  ELLER KARSTEN ,  HEILEN GERD ,  PLITZKO KLAUS-DIETER

    IPC: B01J23/24 ,  C08G65/10 ,  C08G65/20 ,  C08G65/26 ,  C08G65/28

    Abstract: PCT No. PCT/EP95/03651 Sec. 371 Date Mar. 10, 1997 Sec. 102(e) Date Mar. 10, 1997 PCT Filed Sep. 21, 1995 PCT Pub. No. WO96/09335 PCT Pub. Date Mar. 28, 1996A process for the preparation of polytetrahydrofuran or polytetrahydrofuran monoesters of C1-C10 monocarboxylic acids by the polymerization of tetrahydrofuran over a heterogeneous catalyst in the presence of one of the telogens water, 1,4-butanediol or polytetrahydrofuran having a molecular weight of from 200 to 700 dalton or a C1-C10 monocarboxylic acid or mixtures of these telogens, wherein a supported catalyst is used as catalyst, which contains a catalytically active amount of an oxygen-containing tungsten or molybdenum compound or mixtures of these compounds on an oxidic support material and which was calcined at temperatures ranging from 500 DEG to 1000 DEG C. following the application of the precursor compounds of said oxygen-containing molybdenum and/or tungsten compounds to the support material precursor.

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