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    Process for preparing polyoxytetramethylene glycol
    32.
    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.

    METHOD OF PRODUCING POLYTETRAHYDROFURANE
    34.
    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
    36.
    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.

    Method of producing polytetrahydrofurane
    38.
    发明专利
    Method of producing polytetrahydrofurane 未知

    公开(公告)号：AU3607495A

    公开(公告)日：1996-04-09

    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.

    METHOD OF PRODUCING POLYTETRAHYDROFURANE
    39.
    发明专利
    METHOD OF PRODUCING POLYTETRAHYDROFURANE 未知

    公开(公告)号：CA2199644A1

    公开(公告)日：1996-03-28

    申请号：CA2199644

    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: A method is disclosed of producing polytetrahydrofurane or polytetrahydrofurane monoesters of C1-C10 monocarboxylic acids by polymerisation of tetrahydrofurane on a heterogenous catalyst in the presence of one of the following telogens: water, 1.4-butane diol, polytetrahydrofurane with a molecular weight of 200-700 Da, a C1-C10 monocarboxylic acid, or mixtures of these telogens. The catalyst used is a carrier catalyst which contains a catalytically active quantity of an oxygen-containing tungsten or molybdenum compound or mixtures of such compounds on an oxide carrier material and has undergone calcination at temperatures of 500-1000 ~C after the precursors of the oxygen-containing molybdenum and/or tungsten compounds have been deposited on the carrier material precursor.

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