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公开(公告)号:DE502005002059D1
公开(公告)日:2008-01-03
申请号:DE502005002059
申请日:2005-06-22
Applicant: BASF AG
Inventor: OSTROWSKI THOMAS , BAUER STEPHAN , LOEFFLER ACHIM , WINKLER JUERGEN
IPC: C08G65/00
Abstract: The invention provides a process for continuously preparing polyether alcohols by adding alkylene oxides to H-functional starter substances using a DMC catalyst, comprising the steps of a) preparing a precursor by continuously metering an H-functional starter substance, an alkylene oxide or a mixture of at least two alkylene oxides and the required amount of DMC catalyst into a continuous reactor, b) continuously withdrawing the precursor from step a) from the reactor, c) continuously metering the product from step a), an alkylene oxide different from that in step a) or a mixture of at least two alkylene oxides different from that in step a) and, if appropriate, the required amount of DMC catalyst into a further continuous reactor.
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公开(公告)号:PT1763550E
公开(公告)日:2007-12-10
申请号:PT05753769
申请日:2005-06-22
Applicant: BASF AG
Inventor: BAUER STEPHAN , OSTROWSKI THOMAS , WINKLER JUERGEN , LOEFFLER ACHIM
IPC: C08G65/00
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公开(公告)号:DE10322785A1
公开(公告)日:2004-12-09
申请号:DE10322785
申请日:2003-05-19
Applicant: BASF AG
Inventor: DINSCH STEFAN , WINKLER JUERGEN , FALKE PETER , KNORR GOTTFRIED , KAMPF GUNNAR , ZIELER RALF
Abstract: Production of polyetherols by catalytic adduction of alkylene oxides onto solid initiator substances involves taking up the solid initiator into liquid catalytically-active materials and then effecting the reaction in the suspension and/or solution. An independent claim is also included for polyetherols thus obtained and having a hydroxy number of 100-900 mg KOH/g and a functionality of 2-8.
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公开(公告)号:DE50104155D1
公开(公告)日:2004-11-18
申请号:DE50104155
申请日:2001-11-22
Applicant: BASF AG
Inventor: BARTH THOMAS DI , HEIDER WOLFGANG , BOHRES EDWARD DR , GROSCH HEINRICH , VOSS HARTWIG , HOEPPNER GERD , HARRE KATHRIN , PAREDIS ELS , WINKLER JUERGEN , STOESSER MICHAEL , SAGER WILFRIED
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公开(公告)号:AT275163T
公开(公告)日:2004-09-15
申请号:AT00993409
申请日:2000-12-06
Applicant: BASF AG
Inventor: HARRE KATHRIN , HOEPPNER GERD , GROSCH GEORG HEINRICH , BAUER STEPHAN , WINKLER JUERGEN , PAREDIS ELS , LORENZ REINHARD , ROTERMUND INGE
Abstract: In a process for preparing polyether alcohols by catalytic addition of at least two alkylene oxides onto H-functional initiator substances, at least one multimetal cyanide compound is used as catalyst and the addition of the alkylene oxides onto the initiator substance includes incorporation of at least one oxyalkylene block during whose formation at least two alkylene oxides are metered in together and the ratio of the alkylene oxides to one another in the mixture is changed during the joint introduction.
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公开(公告)号:DE50102264D1
公开(公告)日:2004-06-17
申请号:DE50102264
申请日:2001-02-22
Applicant: BASF AG
Inventor: OSTROWSKI THOMAS , HARRE KATHRIN , GROSCH HEINRICH , HOEPPNER GERD , DE VOCHT PETER , LEYS DIRK , WINKLER JUERGEN , BAUER STEPHAN
Abstract: A process for the preparation of polyetherpolyols by reacting diols or polyols with ethylene oxide, propylene oxide, butylene oxide or a mixture thereof in the presence of a multimetal cyanide complex catalyst is proposed, the reaction being carried out in a stirred kettle reactor and the reaction mixture being circulated via an external heat exchanger by means of a pump.
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公开(公告)号:AT266693T
公开(公告)日:2004-05-15
申请号:AT01915290
申请日:2001-02-22
Applicant: BASF AG
Inventor: OSTROWSKI THOMAS , HARRE KATHRIN , GROSCH GEORG HEINRICH , HOEPPNER GERD , DE VOCHT PETER , LEYS DIRK , WINKLER JUERGEN , BAUER STEPHAN
Abstract: A process for the preparation of polyetherpolyols by reacting diols or polyols with ethylene oxide, propylene oxide, butylene oxide or a mixture thereof in the presence of a multimetal cyanide complex catalyst is proposed, the reaction being carried out in a stirred kettle reactor and the reaction mixture being circulated via an external heat exchanger by means of a pump.
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8.
公开(公告)号:HU0204462A2
公开(公告)日:2003-04-28
申请号:HU0204462
申请日:2001-02-16
Applicant: BASF AG
Inventor: GROSCH GEORG HEINRICH , HARRE KATHRIN , OSTROWSKI THOMAS , WINKLER JUERGEN
Abstract: Production of polyether polyols by reaction of diols or polyols with a 2-4C alkylene oxide in the presence of a multi-metal cyanide complex catalyst comprises use of a tall vertical cylindrical reactor with a central stirrer and heat exchange plates arranged in the longitudinal direction of the reactor at an angle, alpha , of 0-70 [deg] in the direction of rotation of the stirrer to the reactor radius. A process for the production of polyether polyols (I) by reaction of diols or polyols with ethylene oxide, propylene oxide and/or butylene oxide in the presence of a multi-metal cyanide complex catalyst (II) comprises carrying out the reaction in a tall vertical cylindrical reactor with a central stirrer and heat exchanger plates, through which a heat exchange medium flows and which are arranged essentially in the longitudinal direction of the reactor at an angle alpha , of 0-70 [deg] in the direction of rotation of the stirrer to the reactor radius.
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公开(公告)号:DE10057891A1
公开(公告)日:2002-05-23
申请号:DE10057891
申请日:2000-11-22
Applicant: BASF AG
Inventor: HEIDER WOLFGANG , BOHRES EDWARD , GROSCH GEORG HEINRICH , VOS HARTWIG , HOEPPNER GERD , HARRE KATHRIN , PAREDIS ELS , WINKLER JUERGEN
Abstract: A method for working up polyether-polyols (I) obtained by ring-opening polymerization of epoxides with hydroxy-functional starters in presence of heterogeneous catalysts involves separating the catalyst from the product (I) by a membrane separation process. An Independent claim is also included for a method for the production of (I) by ring-opening polymerization of epoxides followed by a work-up process using a separation step as above.
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公开(公告)号:DE10054065A1
公开(公告)日:2002-05-16
申请号:DE10054065
申请日:2000-10-31
Applicant: BASF AG
Inventor: DINSCH STEFAN , WETTERLING MONIKA , WINKLER JUERGEN , HOEPPNER GERD
Abstract: Preparation of nitrogen-containing polyetherols by catalytically alkoxylation comprises heating a starter compound mixture containing at least one nitrogen atom with at least two reactive hydrogen atoms to 50-100 deg C followed by reaction with alkylene oxides at 90-160 deg C. Preparation of nitrogen-containing polyetherols by catalytically alkoxylation comprises heating a starter compound mixture containing at least one nitrogen atom with at least two reactive hydrogen atoms to 50-100 deg C followed by reaction at 90-160 deg C. An Independent claim is included for the obtained polyetherols.
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