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公开(公告)号：WO2004026853A3
公开(公告)日：2004-11-18
申请号：PCT/EP0308403
申请日：2003-07-30
Applicant: BASF AG , PINKOS ROLF , KAESHAMMER STEFAN , MENGER VOLKMAR , HAUBNER MARTIN , GROLL PETER , SCHLITTER STEPHAN , PFAFF KLAUS-PETER
Inventor： PINKOS ROLF , KAESHAMMER STEFAN , MENGER VOLKMAR , HAUBNER MARTIN , GROLL PETER , SCHLITTER STEPHAN , PFAFF KLAUS-PETER
IPC: C07D307/08 , C08G65/20 , C08G65/26
CPC classification number: C08G65/20 , C07D307/08 , C08G65/2666
Abstract: The invention relates to a method for the continuous production of THF by reacting a reaction mixture containing 1.4-butandiol with a non-predried heteropolyacidic catalyst. The invention is characterised in that the reaction mixture contains 2-(4-hydroxybutoxy)-tetrahydrofuran.
Abstract translation: 本发明涉及一种用于通过向干燥的非预杂多酸催化剂的含1,4-丁二醇的反应混合物的反应连续制备THF的过程，其特征在于，2-（4-羟基丁氧基） - 四氢呋喃的反应混合物中包含的内容。
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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.
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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.
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公开(公告)号：CA2626458A1
公开(公告)日：2007-05-10
申请号：CA2626458
申请日：2006-10-26
Applicant: BASF AG
Inventor： MASSONNE KLEMENS , GOTTWALD GUENTHER , SCHUBERT JUERGEN , PFAFF KLAUS-PETER
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公开(公告)号：AU8201301A
公开(公告)日：2002-02-25
申请号：AU8201301
申请日：2001-07-24
Applicant: BASF AG
Inventor： SIGWART CHRISTOPH , MEIER ANTON , HESSE MICHAEL , MENGER VOLKMAR , PFAFF KLAUS-PETER , HOHN ARTHUR , FRANZ LOTHAR
IPC: C08G65/30 , C08G65/20 , C08G65/322 , C08G65/32
Abstract: In a process for preparing polytetrahydrofuran, tetrahydrofuran copolymers, diesters or monoesters of these polymers having a low color number, the polymers obtained by cationic polymerization of tetrahydrofuran are hydrogenated in the presence of a macroporous, supported heterogeneous catalyst comprising at least one metal of groups 7 to 10 of the Periodic Table of the Elements as active metal.
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Patent Agency Ranking
公开(公告)号：DE502004004895D1
公开(公告)日：2007-10-18
申请号：DE502004004895
申请日：2004-06-19
Applicant: BASF AG
Inventor： MENGER VOLKMAR , SCHWARTZTRAUBER MICHAEL , HAUBNER MARTIN , PFAFF KLAUS-PETER
IPC: C07D307/08 , C08G65/20 , C08G65/30 , C08G65/331
Abstract: A process for obtaining oligomers of polytetrahydrofuran or of tetrahydrofuran copolymers from a methanolic crude product which contains polytetrahydrofuran or tetrahydrofuran copolymers and is obtained in the transesterification of the mono- and/or diesters of polytetrahydrofuran or tetrahydrofuran copolymers with methanol, which includes a) removing the majority of the methanol from the crude product in a first distillation stage, b) separating the resulting bottom product by distillation into a top fraction containing the oligomers of polytetrahydrofuran or of tetrahydrofuran copolymers, and polytetrahydrofuran or tetrahydrofuran copolymer, and c) condensing the oligomers of polytetrahydrofuran or of tetrahydrofuran copolymers out of the top fraction from stage b).
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公开(公告)号：CA2637043A1
公开(公告)日：2007-07-26
申请号：CA2637043
申请日：2007-01-12
Applicant: BASF AG
Inventor： ERNST HANSGEORG , PFAFF KLAUS-PETER , KRAUSE WOLFGANG , SCHUBERT JUERGEN , BECK KARL , GOTTWALD GUENTHER
IPC: C07C403/08 , C07C67/02 , C07C69/007
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公开(公告)号：AU2003251666A8
公开(公告)日：2004-04-08
申请号：AU2003251666
申请日：2003-07-30
Applicant: BASF AG
Inventor： MENGER VOLKMAR , KASHAMMER STEFAN , SCHLITTER STEPHAN , HAUBNER MARTIN , GROLL PETER , PINKOS ROLF , 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.
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公开(公告)号：DK10886D0
公开(公告)日：1986-01-10
申请号：DK10886
申请日：1986-01-10
Applicant: BASF AG
Inventor： PFAFF KLAUS-PETER , PAUST JOACHIM , HARTMANN HORST
Abstract: Sugar ketals are prepared by reacting a sugar with a ketone in the presence of an acid catalyst by a process in which A. a molecular boron trifluoride compound or trifluoromethanesulfonic acid is used in an amount of only from 0.01 to 10% by weight, based on the sugar used, B. up to a 30-fold molar excess of the ketone is used and C. the water formed during the reaction is removed continuously from the reaction mixture. In a particularly advantageous embodiment of the process, the boron trifluoride is used in the form of boron trifluoride etherate and, when the reaction is complete, this compound or the trifluoromethanesulfonic acid is rendered ineffective under non-aqueous conditions, after which the ketone is evaporated off and the reaction mixture is then subjected to fractional distillation. The process is particularly important for the reaction of L-sorbose with acetone to obtain 2,3:4,6-di-O-isopropylidene-L-sorbofuranose, which is required for the synthesis of ascorbic acid.
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公开(公告)号：DE102005053338A1
公开(公告)日：2007-05-10
申请号：DE102005053338
申请日：2005-11-07
Applicant: BASF AG
Inventor： MASSONNE KLEMENS , PFAFF KLAUS-PETER , SCHUBERT JUERGEN , GOTTWALD GUENTHER
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