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公开(公告)号：MXPA03001130A
公开(公告)日：2003-06-30
申请号：MXPA03001130
申请日：2001-08-11
Applicant: BASF AG
Inventor： BORCHERS DIRK
IPC: C08F4/14 , C08F6/02 , C08F6/08 , C08F10/10 , C08F110/10
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公开(公告)号：CA2426077A1
公开(公告)日：2003-04-15
申请号：CA2426077
申请日：2001-11-16
Applicant: BASF AG
Inventor： WETTLING THOMAS , VERRELST WIM , BORCHERS DIRK , RATH HANS PETER
IPC: B01J27/12 , B01J27/32 , B01J38/00 , B01J38/52 , C08F4/14 , C08F6/00 , C08F6/02 , C08F6/08 , C08F10/00
Abstract: The invention relates to a method for deactivating and recovering boron trifluoride when producing polyisobutenes by means of cationic polymerisation of isobutene or hydrocarbon streams containing isobutene in the liquid phase in the presence of boron trifluoride or in the form of a boron trifluoride catalyst complex. Said catalyst complex is separated, essentially in the liquid phase, from the reactor discharge. Said method contains the following steps, a) removing from the polymerisation reactor at -60 to 0 ~C, methanol, ethanol or a mixture of methanol and ethanol in such a quantity that an alcohol phase rich in boron trifluoride is deposited b) separating the alcohol phase according to (a) and, (c) from the alcohol phase according to (b) is reintegrated into the inventive method in a suitable manner if desired.
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公开(公告)号：CA2418032A1
公开(公告)日：2003-01-31
申请号：CA2418032
申请日：2001-08-11
Applicant: BASF AG
Inventor： RATH HANS PETER , VERRELST WIM , WETTLING THOMAS , BORCHERS DIRK
IPC: C08F4/14 , C08F6/02 , C08F6/08 , C08F10/10 , C08F110/10
Abstract: The invention relates to a method for producing polyisobutenes by means of cationic polymerisation of isobutene or hydrocarbon flows containing isobute ne in the liquid phase in the presence of boron trifluoride as a catalyst. The catalytic efficacy of the boron trifluoride is partially or fully eliminated at a desired point in time by means of a solid deactivator, said deactivator being an inorganic, anhydrous, or aqueous aluminium oxide which is insoluble in the reaction mixture.
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公开(公告)号：DE10118182A1
公开(公告)日：2002-10-17
申请号：DE10118182
申请日：2001-04-11
Applicant: BASF AG
Inventor： WETTLING THOMAS , BORCHERS DIRK , AUER HEINZ
Abstract: A method for working up liquid reaction products from the cationic polymerisation of isobutene (mainly polyisobutene (PIB), unreacted isobutene and inert diluent) involves heating and flash evaporation to give a PIB-containing liquid phase and a gas phase containing most of the unreacted isobutene and at least 30% of the inert diluent.
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公开(公告)号：DE10035298A1
公开(公告)日：2002-01-31
申请号：DE10035298
申请日：2000-07-18
Applicant: BASF AG
Inventor： WETTLING THOMAS , BORCHERS DIRK , VERRELST WIM
Abstract: The production of polyisobutene by liquid-phase, cationic polymerization of isobutene in the presence of a boron trifluoride catalyst followed by the addition of a solid deactivator at a required point in time uses a deactivator (I) containing boron trifluoride-binding prim., sec., tert. and/or quat. nitrogen atoms, which is insoluble in the reaction mixture. In the production of polyisobutenes (PIB) by liquid-phase, cationic polymerization of isobutene or hydrocarbon streams containing isobutene in the presence of boron trifluoride as catalyst, the catalytic activity of the BF3 is partly or completely eliminated at a required point in time by means of a solid deactivator which contains BF3-binding prim., sec., tert. and/or quat. nitrogen atoms and is insoluble in the reaction mixture.
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Patent Agency Ranking
公开(公告)号：BR9813431A
公开(公告)日：2000-10-10
申请号：BR9813431
申请日：1998-12-02
Applicant: BASF AG
Inventor： MAYWALD VOLKER , GOETZ NORBERT , KUEKENHOEHNER THOMAS , BORCHERS DIRK , KOENIG HARTMANN , HARTMANN HORST , WAGNER RUPERT
IPC: C07D307/32 , C07D307/33 , C07D407/04
Abstract: A process for removing impurities from 3-(2'-acetoxyethyl)-dihydro-2(3H)-furanone (I), which comprises initially preparing the 3-(2'-acetoxyethyl)-dihydro-2(3H)-furanone containing the undesirable impurities in a manner known per se by acetylating 3-(2'-hydroxylethyl)-dihydro-2(3H)-furanone, subsequently treating it with strong mineral acids and finally removing the decomposition products of the undesirable impurities from I.
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公开(公告)号：AT300560T
公开(公告)日：2005-08-15
申请号：AT01996562
申请日：2001-11-16
Applicant: BASF AG
Inventor： WETTLING THOMAS , BORCHERS DIRK , VERRELST WIM , RATH HANS PETER
IPC: B01J27/12 , B01J27/32 , B01J38/00 , B01J38/52 , C08F4/14 , C08F6/00 , C08F6/02 , C08F6/08 , C08F10/00
Abstract: The invention relates to a method for deactivating and recovering boron trifluoride when producing polyisobutenes by means of cationic polymerization of isobutene or hydrocarbon streams containing isobutene in the liquid phase in the presence of boron trifluoride or in the form of a boron trifluoride catalyst complex. The catalyst complex is separated, essentially in the liquid phase, from the reactor discharge. The method comprises the following steps: a) removing from the polymerization reactor at -60 to 020 C., methanol, ethanol or a mixture of methanol and ethanol in such a quantity that an alcohol phase rich in boron trifluoride is formed; b) separating the alcohol phase according to (a) and, (c) optionally recycling the boron trifluoride of the alcohol phase obtained from (b) to the method in a suitable manner.
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公开(公告)号：AU2185602A
公开(公告)日：2002-05-27
申请号：AU2185602
申请日：2001-11-16
Applicant: BASF AG
Inventor： WETTLING THOMAS , BORCHERS DIRK , VERRELST WIM , RATH HANS PETER
IPC: B01J27/12 , B01J27/32 , B01J38/00 , B01J38/52 , C08F4/14 , C08F6/00 , C08F6/02 , C08F6/08 , C08F10/00
Abstract: The invention relates to a method for deactivating and recovering boron trifluoride when producing polyisobutenes by means of cationic polymerization of isobutene or hydrocarbon streams containing isobutene in the liquid phase in the presence of boron trifluoride or in the form of a boron trifluoride catalyst complex. The catalyst complex is separated, essentially in the liquid phase, from the reactor discharge. The method comprises the following steps: a) removing from the polymerization reactor at -60 to 020 C., methanol, ethanol or a mixture of methanol and ethanol in such a quantity that an alcohol phase rich in boron trifluoride is formed; b) separating the alcohol phase according to (a) and, (c) optionally recycling the boron trifluoride of the alcohol phase obtained from (b) to the method in a suitable manner.
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公开(公告)号：DE59803385D1
公开(公告)日：2002-04-18
申请号：DE59803385
申请日：1998-12-02
Applicant: BASF AG
Inventor： MAYWALD VOLKER , GOETZ NORBERT , KUEKENHOEHNER THOMAS , BORCHERS DIRK , KOENIG HARTMANN , HARTMANN HORST , WAGNER RUPERT
IPC: C07D307/32 , C07D307/33 , C07D407/04
Abstract: A process for removing impurities from 3-(2'-acetoxyethyl)-dihydro-2(3H)-furanone (I), which comprises initially preparing the 3-(2'-acetoxyethyl)-dihydro-2(3H)-furanone containing the undesirable impurities in a manner known per se by acetylating 3-(2'-hydroxylethyl)-dihydro-2(3H)-furanone, subsequently treating it with strong mineral acids and finally removing the decomposition products of the undesirable impurities from I.
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公开(公告)号：AU8761201A
公开(公告)日：2002-01-30
申请号：AU8761201
申请日：2001-07-13
Applicant: BASF AG
Inventor： WETTLING THOMAS , BORCHERS DIRK , VERRELST WIM , RATH HANS PETER
Abstract: The production of polyisobutene by liquid-phase, cationic polymerization of isobutene in the presence of a boron trifluoride catalyst followed by the addition of a solid deactivator at a required point in time uses a deactivator (I) containing boron trifluoride-binding prim., sec., tert. and/or quat. nitrogen atoms, which is insoluble in the reaction mixture. In the production of polyisobutenes (PIB) by liquid-phase, cationic polymerization of isobutene or hydrocarbon streams containing isobutene in the presence of boron trifluoride as catalyst, the catalytic activity of the BF3 is partly or completely eliminated at a required point in time by means of a solid deactivator which contains BF3-binding prim., sec., tert. and/or quat. nitrogen atoms and is insoluble in the reaction mixture.
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