公开(公告)号：DE10032264A1

公开(公告)日：2002-01-17

申请号：DE10032264

申请日：2000-07-03

Applicant: BASF AG

Inventor： SIGWART CHRISTOPH ,  DOMSCHKE THOMAS ,  FISCHER ROLF HARTMUTH ,  HAUBNER MARTIN ,  STEIN FRANK

IPC: C08G65/20 ,  C08G65/30 ,  C07C41/01 ,  C07C41/58 ,  C07C43/10

Abstract: The invention relates to a method for single-step production of polytetrahydrofurane or tetrahydrofurane copolymers by polymerizing tetrahydrofurane on an acid, heterogeneous catalyst in the presence of at least one telogen and/or comonomer from the group of alpha, omega-diols, water, polytetrahydrofurane having a molecular weight of 200 - 700 Dalton and/or cyclic ether, characterized in that a) the catalyst-free polymerization discharge is divided up into at least one distillation step forming a residue containing the polymerization product and at least one tetrahydrofurane fraction, and the tetrahydrofurane fraction is at least partially recycled in the polymerization, and b) low-molecular polytetrahydrofurane and/or tetrahydrofurane copolymers having an average molecular weight of 200-700 Dalton are separated from the distillation residue of step a) and PTHF and/or THF copolymers having an average molecular weight of 650 - 5000 Dalton are obtained, and c) at least one partial amount of the separated low-molecular polytetrahydrofurane and/or tetrahydrofurane copolymer having an average molecular weight of 200 700 Dalton is recyled in the polymerization.

公开(公告)号：DE50307478D1

公开(公告)日：2007-07-26

申请号：DE50307478

申请日：2003-07-30

Applicant: BASF AG

Inventor： PINKOS ROLF ,  KAESHAMMER STEFAN ,  MENGER VOLKMAR ,  HAUBNER MARTIN ,  GROLL PETER ,  SCHLITTER STEPHAN ,  PFAFF KLAUS-PETER

IPC: C07D307/08 ,  C08G65/20 ,  C08G65/26

Abstract: A process for the continuous production of tetrahydrofuran (THF) by reaction of a 1,4-butanediol reaction mixture at a heteropolyacid catalyst that has not been pre-dried is characterized in that the reaction mixture contains 2-(4-hydroxybutoxy)tetrahydrofuran.

公开(公告)号：AT364598T

公开(公告)日：2007-07-15

申请号：AT03797217

申请日：2003-07-30

Applicant: BASF AG

Inventor： PINKOS ROLF ,  KAESHAMMER STEFAN ,  MENGER VOLKMAR ,  HAUBNER MARTIN ,  GROLL PETER ,  SCHLITTER STEPHAN ,  PFAFF KLAUS-PETER

IPC: C07D307/08 ,  C08G65/20 ,  C08G65/26

Abstract: A process for the continuous production of tetrahydrofuran (THF) by reaction of a 1,4-butanediol reaction mixture at a heteropolyacid catalyst that has not been pre-dried is characterized in that the reaction mixture contains 2-(4-hydroxybutoxy)tetrahydrofuran.

公开(公告)号：DE50205051D1

公开(公告)日：2005-12-29

申请号：DE50205051

申请日：2002-07-26

Applicant: BASF AG

Inventor： STEINBRENNER ULRICH ,  HAUBNER MARTIN ,  GERSTLAUER ACHIM ,  DOMSCHKE THOMAS ,  SIGWART CHRISTOPH ,  KAESHAMMER STEFAN

IPC: C08G65/20 ,  C08G65/26

Abstract: In a process for the single-stage preparation of polytetrahydrofuran and/or tetrahydrofuran copolymers having a mean molecular weight of from 650 to 5000 dalton by polymerization of tetrahydrofuran over an acid catalyst in the presence of at least one telogen and/or comonomer, the telogen and/or comonomer is added at at least two addition points in different segments of the polymerization apparatus.

公开(公告)号：DE10238953A1

公开(公告)日：2004-03-04

申请号：DE10238953

申请日：2002-08-24

Applicant: BASF AG

Inventor： PINKOS ROLF ,  HESSE MICHAEL ,  HAUBNER MARTIN ,  SCHLITTER STEPHAN

IPC: B01J23/80 ,  B01J37/18 ,  C08G65/322 ,  C08G65/331 ,  C08G65/10 ,  C08G65/20

公开(公告)号：DE10139293A1

公开(公告)日：2003-02-27

申请号：DE10139293

申请日：2001-08-09

Applicant: BASF AG

Inventor： STEINBRENNER ULRICH ,  HAUBNER MARTIN ,  GERSTLAUER ACHIM ,  DOMSCHKE THOMAS ,  SIGWART CHRISTOPH ,  KAESHAMMER STEFAN

IPC: C08G65/20 ,  C08G65/26 ,  B01J23/30

Abstract: In a process for the single-stage preparation of polytetrahydrofuran and/or tetrahydrofuran copolymers having a mean molecular weight of from 650 to 5000 dalton by polymerization of tetrahydrofuran over an acid catalyst in the presence of at least one telogen and/or comonomer, the telogen and/or comonomer is added at at least two addition points in different segments of the polymerization apparatus.

公开(公告)号：DE10105970A1

公开(公告)日：2002-12-05

申请号：DE10105970

申请日：2001-02-09

Applicant: BASF AG

Inventor： STEINBRENNER ULRICH ,  LINDEN GERD ,  HAUBNER MARTIN ,  COX GERHARD ,  HESSE MICHAEL ,  HIBST HARTMUT ,  SCHWAB EKKEHARD ,  TENTEN ANDREAS

IPC: B01J21/06 ,  B01J23/28 ,  B01J23/30 ,  B01J27/188 ,  B01J35/00 ,  B01J35/10 ,  B01J37/00 ,  C08G65/20 ,  C08G65/26 ,  B01J23/24 ,  B01J27/053 ,  C08G65/10

Abstract: Catalyst (A) comprises active oxygen compounds of molybdenum and/or tungsten (I) on an oxide carrier and is prepared by: (i) applying precursors of (I) to the carrier (or its precursor); and (ii) calcining at 400-900 deg C. It is characterized by having transport pores of diameter over 25 nm and transport pore volume at least 50 mm /g. Independent claims are also included for: (a) method for preparing (A); and (b) preparation of poly(tetrahydrofuran) or tetrahydrofuran (THF) copolymers (or their di- or mono-esters) by polymerization of THF in presence of at least one telogen and/or comonomer, and in presence of (A).

公开(公告)号：ES2268652T3

公开(公告)日：2007-03-16

申请号：ES04724282

申请日：2004-03-30

Applicant: BASF AG

Inventor： HAUBNER MARTIN ,  PINKOS ROLF

IPC: C08G65/20 ,  C08G65/26

Abstract: Procedimiento para la producción de una etapa de polioxialquilenglicoles mediante copolimerización de THF y neopentilglicol en presencia de un heteropoliácido, caracterizado porque el contenido en nitrógeno ligado orgánicamente en el neopentilglicol es menor de 5 ppm.

公开(公告)号：ES2263071T3

公开(公告)日：2006-12-01

申请号：ES03813127

申请日：2003-12-16

Applicant: BASF AG

Inventor： HAUBNER MARTIN ,  PINKOS ROLF

IPC: C08G65/20 ,  C08G65/26 ,  C08G65/28

Abstract: Procedimiento para la obtención en una sola etapa de polioxialquilenglicoles con un peso molecular desde 1.000 hasta 2.800 mediante copolimerización de tetrahidrofurano y alfa, omega-dioles con excepción del 1, 4-butanodiol, a modo de comonómero en presencia de un heteropoliácido y de un hidrocarburo, en el cual se elimina por destilación a partir de la copolimerización una mezcla formada por agua y por este hidrocarburo, caracterizado porque se interrumpe la polimerización mediante adición de agua cuando se alcanza este peso molecular.

公开(公告)号：AT331750T

公开(公告)日：2006-07-15

申请号：AT04724282

申请日：2004-03-30

Applicant: BASF AG

Inventor： HAUBNER MARTIN ,  PINKOS ROLF

IPC: C08G65/20 ,  C08G65/26

Abstract: The present invention relates to a process for the single-stage preparation of polyoxyalkylene glycols by copolymerization of THF and alpha, omega-diols in the presence of a heteropolyacid, wherein the content of organically bound nitrogen in the alpha, omega-diol is less than 15 ppm.