Patents by Inventor Luise Spiske
Luise Spiske has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10195598Abstract: The invention relates to process for the regeneration of a catalyst comprising a titanium containing zeolite as catalytically active material comprising a stage comprising introducing a feed stream comprising propene, hydrogen peroxide or a hydrogen peroxide source, and an organic solvent into a reactor containing a catalyst comprising the titanium containing zeolite, subjecting the feed stream in the reactor to epoxidation conditions in the presence of the catalyst, removing a product steam comprising propylene oxide and the organic solvent from the reactor, stopping introducing the feed stream, washing the catalyst with a liquid aqueous system and calcining the washed catalyst.Type: GrantFiled: February 12, 2016Date of Patent: February 5, 2019Assignees: BASF SE, Dow Global Technologies LLCInventors: Dominic Riedel, Joaquim Henrique Teles, Daniel Urbanczyk, Ulrike Wegerle, Luise Spiske, Andrei-Nicolae Parvulescu, Alexander Schroeder, Ulrich Mueller, Meinolf Weidenbach, Werner J. Witzl
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Patent number: 10053439Abstract: A catalytic system containing a titanium zeolite of structure type MWW optionally containing zinc and containing at least one of an inorganic potassium salt and an organic potassium salt is provided. The catalyst system is useful in the preparation of propylene oxide.Type: GrantFiled: June 29, 2017Date of Patent: August 21, 2018Assignees: BASF SE, DOW Global Technologies LLCInventors: Dominic Riedel, Joaquim Henrique Teles, Ulrike Wegerle, Andrei-Nicolae Parvulescu, Alexander Schroeder, Luise Spiske, Daniel Urbanczyk, Ulrich Mueller, Werner Witzl, Meinolf Weidenbach
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Publication number: 20180036723Abstract: The invention relates to process for the regeneration of a catalyst comprising a titanium containing zeolite as catalytically active material comprising a stage comprising introducing a feed stream comprising propene, hydrogen peroxide or a hydrogen peroxide source, and an organic solvent into a reactor containing a catalyst comprising the titanium containing zeolite, subjecting the feed stream in the reactor to epoxidation conditions in the presence of the catalyst, removing a product steam comprising propylene oxide and the organic solvent from the reactor, stopping introducing the feed stream, washing the catalyst with a liquid aqueous system and calcining the washed catalyst.Type: ApplicationFiled: February 12, 2016Publication date: February 8, 2018Applicants: BASF SE, Dow Global Technologies LLCInventors: Dominic RIEDEL, Joaquim Henrique TELES, Daniel URBANCZYK, Ulrike WEGERLE, Luise SPISKE, Andrei-Nicolae PARVULESCU, Alexander SCHROEDER, Ulrich MUELLER, Meinolf WEIDENBACH, Werner J. WITZL
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Publication number: 20170298034Abstract: A catalytic system containing a titanium zeolite of structure type MWW optionally containing zinc and containing at least one of an inorganic potassium salt and an organic potassium salt is provided. The catalyst system is useful in the preparation of propylene oxide.Type: ApplicationFiled: June 29, 2017Publication date: October 19, 2017Applicants: BASF SE, DOW Global Technologies LLCInventors: Dominic RIEDEL, Joaquim Henrique TELES, Ulrike WEGERLE, Andrei-Nicolae PARVULESCU, Alexander SCHROEDER, Luise SPISKE, Daniel URBANCZYK, Ulrich MUELLER, Werner WITZL, Meinolf Weidenbach
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Patent number: 9738616Abstract: A continuous process for the preparation of propylene oxide, comprising (i) providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, water, optionally propane, and at least one dissolved potassium salt; (ii) passing the feed stream provided in (i) into an epoxidation reactor comprising a catalyst comprising a titanium zeolite of structure type MWW, and subjecting the feed stream to epoxidation reaction conditions in the epoxidation reactor, obtaining a reaction mixture comprising propylene oxide, acetonitrile, water, the at least one potassium salt, optionally propene, and optionally pane; (iii) removing an effluent stream from the epoxidation reactor, the effluent stream comprising propylene oxide, acetonitrile, water, at least a portion of the at least one potassium salt, optionally propene, and optionally propane.Type: GrantFiled: July 16, 2014Date of Patent: August 22, 2017Assignees: BASF SE, Dow Global Technologies LLCInventors: Dominic Riedel, Joaquim Henrique Teles, Ulrike Wegerle, Andrei-Nicolae Parvulescu, Alexander Schroeder, Luise Spiske, Daniel Urbanczyk, Ulrich Mueller, Werner Witzl, Meinolf Weidenbach
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Publication number: 20160176835Abstract: A continuous process for the preparation of propylene oxide, comprising (i) providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, water, optionally propane, and at least one dissolved potassium salt; (ii) passing the feed stream provided in (i) into an epoxidation reactor comprising a catalyst comprising a titanium zeolite of structure type MWW, and subjecting the feed stream to epoxidation reaction conditions in the epoxidation reactor, obtaining a reaction mixture comprising propylene oxide, acetonitrile, water, the at least one potassium salt, optionally propene, and optionally pane; (iii) removing an effluent stream from the epoxidation reactor, the effluent stream comprising propylene oxide, acetonitrile, water, at least a portion of the at least one potassium salt, optionally propene, and optionally propane.Type: ApplicationFiled: July 16, 2014Publication date: June 23, 2016Applicants: BASF SE, DOW Global Technologies LLCInventors: Dominic RIEDEL, Joaquim Henrique TELES, Ulrike WEGERLE, Andrei-Nicolae PARVULESCU, Alexander SCHROEDER, Luise SPISKE, Daniel URBANCZYK, Ulrich MUELLER, Werner WITZL, Meinolf Weidenbach
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Patent number: 6402910Abstract: A process for preparing sodium and aluminum chloride electrochemically is described in which, in an electrolytic cell containing aluminum as an anode and sodium as a cathode which are separated from one another by a sodium ion-conducting solid electrolyte, a fused electrolyte essentially containing sodium tetrachloroaluminate is electrolyzed in the anode compartment, aluminum chloride formed in this process is evaporated from the electrolytic cell and sodium is removed from the cathode compartment.Type: GrantFiled: May 9, 2000Date of Patent: June 11, 2002Assignee: BASF AktiengesellschaftInventors: Hermann Pütter, Günther Huber, Luise Spiske, Hans Stark, Dieter Schläfer, Gerhard Pforr
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Patent number: 6300524Abstract: The present invention relates to an improved process for preparing higher unsaturated ketones by reacting the corresponding &agr;,&bgr;-unsaturated alcohols with alkyl acetoacetates in a Carroll reaction , in a reactor system with fitted fractionation column, wherein A the &agr;,&bgr;-unsaturated alcohol is introduced into the reaction vessel together with the organic aluminum compound in the absence of effective amounts of a solvent, and the alkyl acetoacetate is metered into this mixture, B a reaction temperature which is as constant as possible at between 175° C. and 220° C., preferably between 180° C. and 200° C., is adjusted and C during the reaction the content of alkyl acetoacetate in the reaction mixture is adjusted to a value which is as constant as possible at between 1 and 3% by weight.Type: GrantFiled: November 15, 1999Date of Patent: October 9, 2001Assignee: BASF AktiengesellschaftInventors: Carsten Oost, Manfred Stroezel, Heinz Etzrodt, Dietmar Weller, Udo Rheude, Gerd Kaibel, Thomas Krug, Luise Spiske, Hagen Jaedicke
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Patent number: 6235183Abstract: A process for preparing sodium and aluminum chloride electrochemically is described in which, in an electrolytic cell containing aluminum as an anode and sodium as a cathode which are separated from one another by a sodium ion-conducting solid electrolyte, a fused electrolyte essentially containing sodium tetrachloroaluminate is electrolyzed in the anode compartment, aluminum chloride formed in this process is evaporated from the electrolytic cell and sodium is removed from the cathode compartment.Type: GrantFiled: January 27, 1998Date of Patent: May 22, 2001Assignee: Basf AktiengesellschaftInventors: Hermann Pütter, Günther Huber, Luise Spiske, Hans Stark, Dieter Schläfer, Gerhard Pforr
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Patent number: 5919349Abstract: A process for the electrochemical reduction of an organic compound by bringing the organic compound into contact with a cathode, wherein the cathode comprises a support made of an electrically conductive material and an electrically conductive, cathodically polarized layer formed thereon in situ by alluviation.Type: GrantFiled: May 20, 1997Date of Patent: July 6, 1999Assignee: BASF AktiengesellschaftInventors: Gunther Huber, Andreas Weiper-Idelmann, Andreas Kramer, Rolf Golombek, Markus Frede, Luise Spiske, Karl-Heinz Schehlmann, Volker Steuer
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Patent number: 5248427Abstract: In a process for removing water by pervaporation or vapor permeation from mixtures with alcohols and/or carboxylic acids and/or carboxylic esters by bringing the mixture into contact with one side of a membrane and removing the water-containing permeate in vapor form from the other side of the membrane, the membrane used has been obtained by plasma polymerization.Type: GrantFiled: June 26, 1992Date of Patent: September 28, 1993Assignee: BASF AktiengesellschaftInventors: Luise Spiske, Harald Meissner, Werner Hefner, Andreas Huebner, Hermann Steinhauser, Guido Ellinghorst
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Patent number: 5051188Abstract: Water is removed from a mixture containing water, CO.sub.2 and one or more amines by pervaporation by bringing the mixture into contact with one side of a membrane and removing the water-containing permeate as a vapor from the other side of the membrane.Type: GrantFiled: October 31, 1990Date of Patent: September 24, 1991Assignee: BASF AktiengesellschaftInventors: Luise Spiske, Dietrich Luetzow, Christof Herion, Klaus Kuessner, Werner Hefner