公开(公告)号：DE19641481A1

公开(公告)日：1998-04-16

申请号：DE19641481

申请日：1996-10-09

Applicant: BASF AG

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

IPC: C08G65/10 ,  B01J23/24 ,  C08G18/48 ,  C08G65/20 ,  C08G65/28 ,  C08G65/32 ,  B01J23/30

Abstract: The invention concerns a process for preparing polytetrahydrofuran, copolymers of tetrahydrofuran and 2-butin-1,4-diol, diesters of these polymers with C2-C20 monocarboxylic acids or monoesters of these polymers with C1-C10 monocarboxylic acids by polymerizing tetrahydrofuran in the presence of one of the following telogens, water, 1,-4-butane diol, 2-butin-1,4-diol, polytetrahydrofuran with a molecular weight of between 200 and 700 Dalton, or of a C1-C10 monocarboxylic acid or a carboxylic acid anhydride produced from C2-C20 monocarboxylic acids or mixtures of these telogens on a heterogeneous carrier catalyst which contains a catalytically active amount of an oxygenous molybdenum and/or tungsten compound on an oxidic carrier material, and which has been calcined at temperatures of between 500 DEG C and 1000 DEG C after application of the precursor compounds of the oxygenous molybdenum and/or tungsten compounds to the carrier material precursors. Before it is used as a polymerization catalyst, the catalyst is activated by treatment with a reducing agent.

公开(公告)号：CZ85197A3

公开(公告)日：1997-11-12

申请号：CZ85197

申请日：1995-09-21

Applicant: BASF AG

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

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.

公开(公告)号：DE19602710A1

公开(公告)日：1997-07-31

申请号：DE19602710

申请日：1996-01-26

Applicant: BASF AG

Inventor： SIGWART CHRISTOPH DR ,  HEINEKE DANIEL DR ,  FLICK KLEMENS DR

IPC: B01J23/36 ,  B01J23/44 ,  B01J23/46 ,  B01J37/16 ,  C07B61/00 ,  C07D301/00 ,  C07D303/04

Abstract: A process is disclosed for producing 1,2-butylene oxide by the catalytic hydration of vinyloxirane on a heterogeneous catalyst. The process is characterised by the use of a catalyst produced by coating an inert carrier with at least one element of groups 7-11 of the periodic table in the form of a sol.

公开(公告)号：DE19528942A1

公开(公告)日：1997-02-13

申请号：DE19528942

申请日：1995-08-07

Applicant: BASF AG

Inventor： SIGWART CHRISTOPH DR ,  GEHRER EUGEN DR ,  MUELLER ULRICH DR ,  RATH HANS PETER DR ,  FISCHER ROLF DR

IPC: C08F4/02 ,  C08F4/06 ,  C08F4/16 ,  C08F4/18 ,  C08F10/10

Abstract: Described is a method of producing reactive halogen-free polyisobutene having more than 50 mole % of terminal double bonds and a mean molecular weight Mn of 500 to 5000 Daltons by the cationic polymerization of isobutene or isobutene-containing hydrocarbon mixtures in the liquid phase, the polymerization being carried out at a temperature of -30 to +40 DEG C over a heterogeneous polymerization catalyst which includes at least one element which acts as promoter selected from the Ist, IInd, IIIrd, IVth, Vth, VIIth or VIIIth sub-group of the periodic table of the elements or from the IInd, IIIrd, IVth, Vth or VIth main group of the periodic table, or several such elements, each in the form of an oxygen-containing compound, plus zirconium in the form of an oxygen-containing compound, the catalyst not containing technically significant amounts of halogens.

公开(公告)号：DE4422046A1

公开(公告)日：1996-01-04

申请号：DE4422046

申请日：1994-06-27

Applicant: BASF AG

Inventor： LINGELBACH PETER DR ,  ROSER JOACHIM DR ,  SIGWART CHRISTOPH DR ,  SCHNURR WERNER DR ,  WEYER HANS-JUERGEN DR

IPC: B01J23/44 ,  B01J23/656 ,  B01J27/053 ,  C07D301/00 ,  C07D303/04

Abstract: The invention concerns a method of producing 1,2-butylene oxide by the catalytic hydrogenation of vinyl oxirane, the method calling for the use of a palladium catalyst on a barium sulphate, zirconium oxide or titanium dioxide support or the use of a rhenium-containing palladium catalyst on a support.