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公开(公告)号：DE50006844D1
公开(公告)日：2004-07-22
申请号：DE50006844
申请日：2000-10-27
Applicant: BASF AG
Inventor： RATH PETER , HAHN DIETER , SANDROCK GERHARD , VAN DEYCK FRANS , VANDER STRAETEN BART , DE VREE EDDY
Abstract: Polyisobutene is prepared by cationic polymerization of isobutene and/or isobutene-containing hydrocarbons in the liquid phase in the presence of a complex of BF3 and at least one cocatalyst which is preferably chosen from oxygen-containing compounds, the BF3/cocatalyst complex being produced in situ by adding BF3 and cocatalyst to a reaction stream, wherein BF3 and oxygen-containing cocatalyst are added to the reaction stream via a common binary nozzle comprising an outlet for BF3 and an outlet for the oxygen-containing cocatalyst. The invention also describes a binary nozzle having a centrally arranged outlet for the catalyst.
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公开(公告)号：AU7923300A
公开(公告)日：2001-05-08
申请号：AU7923300
申请日：2000-10-27
Applicant: BASF AG
Inventor： RATH HANS PETER , HAHN DIETER , SANDROCK GERHARD , DEYCK FRANS VAN , STRAETEN BART VANDER , VREE EDDY DE
Abstract: Polyisobutene is prepared by cationic polymerization of isobutene and/or isobutene-containing hydrocarbons in the liquid phase in the presence of a complex of BF3 and at least one cocatalyst which is preferably chosen from oxygen-containing compounds, the BF3/cocatalyst complex being produced in situ by adding BF3 and cocatalyst to a reaction stream, wherein BF3 and oxygen-containing cocatalyst are added to the reaction stream via a common binary nozzle comprising an outlet for BF3 and an outlet for the oxygen-containing cocatalyst. The invention also describes a binary nozzle having a centrally arranged outlet for the catalyst.
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公开(公告)号：CA1222258A
公开(公告)日：1987-05-26
申请号：CA455081
申请日：1984-05-24
Applicant: BASF AG
Inventor： LINDNER ALFRED , BROELLOS KLAUS , SANDROCK GERHARD , VOLKAMER KLAUS , HEFNER WERNER
Abstract: The invention relates to a process for the separation of a C4-hydrocarbon mixture which essentially contains n-butenes and butanes. This process is characterized in that the mixture is reacted with a carboxylic acid in the presence of an acidic catalyst to form a butyl carboxylate; the reaction mixture obtained from the esterification zone is distilled to give, as the top product, a fraction containing the butanes, and, as the bottom product, a fraction containing the resulting butyl carboxylate; the butyl carboxylate is decomposed at elevated temperatures to give the carboxylic acid and n-butenes; and the mixture of n-butenes and carboxylic acid is then distilled, the n-butenes being obtained as the top product, and the carboxylic acid as the bottom product. This process permits to use apparatus that are less expensive than those required for the conventional extractive distillation method.
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公开(公告)号：CA1142554A
公开(公告)日：1983-03-08
申请号：CA355096
申请日：1980-06-30
Applicant: BASF AG
Inventor： BRUNNER ERWIN , SCHUBERT ECKART , LINDNER ALFRED , MERGER FRANZ , VOLKAMER KLAUS , SANDROCK GERHARD , STROHMEYER MAX
Abstract: The present invention is concerned with a process for obtaining isobutene from a C4-hydrocarbon mixture containing isobutene, which comprises the steps for reacting the mixture continuously with a primary C3-or C4-alcohol in the presence of an ion exchanger in its acid form as a condensing agent to form the corresponding C3- or C4-alkyl tert-butyl ether by feeding the primary C3- or C4-alcohol and the C4hydrocarbon mixture with or without prior mixing, to an etherification reaction zone which contains the ion exchanger, while maintaining the exit temperature of the reaction mixture from the etherification reaction zone at from 25 to 65.degree.C and the quotient of the volume of the etherification reaction zone and the throughput of the C4-hydrocarbon mixture and the primary C3- or C4-alcohol at from 0.01 to 5 hours; distilling the reaction mixture obtained from the etherification reaction zone in a first distillation zone, taking off as the top product without water washing a C4-hydrocarbon mixture comprising the unconverted hydrocarbons and not more than 1,000 ppm by weight of the primary C3- or C4-alcohol and taking off as the bottom product the resulting C3- or C4alkyl tert-butyl ether, which may contain therein primary C3- or C4-alcohol which may have been added in excess; feeding the bottom product to a second reaction zone, containing an acid catalyst, in which the C3- or C4-alkyl tert-butyl ether is decomposed at an elevated temperature to give isobutene and primary C3- and C4-alcohol; feeding the mixture of isobutene and primary C3- and C4-alcohol produced in the decomposition step to a second distillation zone, taking off as the top product without a water wash isobutene containing not more than 500 ppm by weight of primary C3-or C4alcohol and taking off as the bottom product the remaining primary C3- or C4-alcohol produced in step (c); and recycling the primary C3- or C4-alcohol which is the bottom product of step (d) to the etherification reaction zone.
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公开(公告)号：AT269365T
公开(公告)日：2004-07-15
申请号：AT00969556
申请日：2000-10-27
Applicant: BASF AG
Inventor： RATH HANS PETER , HAHN DIETER , SANDROCK GERHARD , VAN DEYCK FRANS , VANDER STRAETEN BART , DE VREE EDDY
Abstract: Polyisobutene is prepared by cationic polymerization of isobutene and/or isobutene-containing hydrocarbons in the liquid phase in the presence of a complex of BF3 and at least one cocatalyst which is preferably chosen from oxygen-containing compounds, the BF3/cocatalyst complex being produced in situ by adding BF3 and cocatalyst to a reaction stream, wherein BF3 and oxygen-containing cocatalyst are added to the reaction stream via a common binary nozzle comprising an outlet for BF3 and an outlet for the oxygen-containing cocatalyst. The invention also describes a binary nozzle having a centrally arranged outlet for the catalyst.
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Patent Agency Ranking
公开(公告)号：AT267220T
公开(公告)日：2004-06-15
申请号：AT00975937
申请日：2000-10-27
Applicant: BASF AG
Inventor： RATH HANS PETER , HAHN DIETER , SANDROCK GERHARD , VAN DEYCK FRANS , VANDER STRAETEN BART , DE VREE EDDY
Abstract: Polyisobutenes are prepared by the continuous preparation process, by polymerizing isobutene in the presence of a catalyst comprising boron trifluoride and at least one cocatalyst in an inert organic solvent,a) a part of the reaction mixture obtained thereby being discharged continuously from the polymerization reactor,b) the catalyst being separated from the discharge and/or being deactivated in the discharge, andc) the solvent and any unconverted isobutene being separated from the discharge and recycled to the polymerization reactor,wherein the recycled solvent and, if present, the isobutene are subjected to a wash with water before recycling to the polymerization reactor and are then dried.
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公开(公告)号：AU1388601A
公开(公告)日：2001-05-08
申请号：AU1388601
申请日：2000-10-27
Applicant: BASF AG
Inventor： RATH HANS PETER , HAHN DIETER , SANDROCK GERHARD , DEYCK FRANS VAN , STRAETEN BART VANDER , VREE EDDY DE
Abstract: Polyisobutenes are prepared by the continuous preparation process, by polymerizing isobutene in the presence of a catalyst comprising boron trifluoride and at least one cocatalyst in an inert organic solvent,a) a part of the reaction mixture obtained thereby being discharged continuously from the polymerization reactor,b) the catalyst being separated from the discharge and/or being deactivated in the discharge, andc) the solvent and any unconverted isobutene being separated from the discharge and recycled to the polymerization reactor,wherein the recycled solvent and, if present, the isobutene are subjected to a wash with water before recycling to the polymerization reactor and are then dried.
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公开(公告)号：CA2389249A1
公开(公告)日：2001-05-03
申请号：CA2389249
申请日：2000-10-27
Applicant: BASF AG
Inventor： VANDER STRAETEN BART , DE VREE EDDY , SANDROCK GERHARD , VAN DEYCK FRANS , HAHN DIETER , RATH HANS PETER
Abstract: The invention relates to a continuous method for producing polyisobutene by polymerization of isobutene in the presence of a catalyst from boron trifluoride and at least one cocatalyst in an inert organic solvent. The inventive method comprises the steps of a) discharging, in a continuous manner, a part of the reaction mixture obtained by the polymerization from t he polymerization reactor, b) removing the catalyst from the discharged materia l and/or deactivating it during the discharge, c) removing the solvent and non - reacted isobutene from the discharged material and returning it to the polymerization reactor. The inventive method is further characterized in tha t the returned solvent and optionally the isobutene are first washed with wate r and dried before they are returned to the polymerization reactor.
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公开(公告)号：DE50006524D1
公开(公告)日：2004-06-24
申请号：DE50006524
申请日：2000-10-27
Applicant: BASF AG
Inventor： RATH PETER , HAHN DIETER , SANDROCK GERHARD , VAN DEYCK FRANS , VANDER STRAETEN BART , DE VREE EDDY
Abstract: Polyisobutenes are prepared by the continuous preparation process, by polymerizing isobutene in the presence of a catalyst comprising boron trifluoride and at least one cocatalyst in an inert organic solvent,a) a part of the reaction mixture obtained thereby being discharged continuously from the polymerization reactor,b) the catalyst being separated from the discharge and/or being deactivated in the discharge, andc) the solvent and any unconverted isobutene being separated from the discharge and recycled to the polymerization reactor,wherein the recycled solvent and, if present, the isobutene are subjected to a wash with water before recycling to the polymerization reactor and are then dried.
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公开(公告)号：DE19952030A1
公开(公告)日：2001-05-03
申请号：DE19952030
申请日：1999-10-28
Applicant: BASF AG
Inventor： RATH HANS PETER , HAHN DIETER , SANDROCK GERHARD , DEYCK FRANS VAN , VANDER STRAETEN BART , VREE EDDY DE
Abstract: The invention relates to a method for the continuous production of polyisobutenes by cationic polymerization of isobutenes and/or isobutene-containing hydrocarbons in the liquid phase in the presence of a complex of BF3 and at least one cocatalyst preferably selected from oxygen-containing compounds, whereby the BF3/cocatalyst complex is generated in situ in reaction stream by addition of BF3 and a cocatalyst. The invention is characterized in that BF3 and said oxygen-containing cocatalyst are added to the reaction stream via a common two-material nozzle with an outlet for BF3 and an outlet for said oxygen-containing cocatalyst. The invention also relates to a two-material nozzle with a centrally located outlet for the catalyst.
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