Patents by Inventor Wolfgang Rohde
Wolfgang Rohde 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: 10300496Abstract: The present invention relates to core-shell-particles, wherein the core comprises at least one metal, or a compound thereof, or a mixture of at least one metal or a compound thereof and at least one semimetal or a compound thereof, and the shell comprises at least one silicon comprising polymer, to a process for the preparation of these core-shell-particles, to the use of these core-shell-particles in an agglomeration-deagglomeration process, in particular in chemical, physical or biological test methods or separation processes, decontamination processes, water purification, recycling of electrical/electronic scrap or gravity separation, and to a process for separating at least one first material from a mixture comprising this at least one first material and at least one second material.Type: GrantFiled: January 22, 2015Date of Patent: May 28, 2019Assignees: BASF SE, BASF CorporationInventors: Florian Blasberg, Andreas Luz, Igor Shishkov, David J. Gilbert, Wolfgang Rohde
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Publication number: 20180369834Abstract: The present invention relates to a process for the separation of at least one hydrophobic or hydrophobized material from a dispersion comprising said at least one hydrophobic or hydrophobized material and at least one second material. The process according to the present invention comprises the steps (A) to (D) which are described herein.Type: ApplicationFiled: December 7, 2016Publication date: December 27, 2018Inventors: Wolfgang ROHDE, Alexej MICHAILOVSKI, Igor SHISHKOV, Reinhold RIEGER, Gerardo INCERA GARRIDO, Piyada CHAROENSIRISOMBOON, Darren MEGAW, David Johann GILBERT
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Publication number: 20170274389Abstract: The present invention relates to a process for the separation of at least one valuable matter containing material from a dispersion comprising said at least one valuable matter containing material and at least one second material. The process according to the present invention comprises at least the steps (A) to (E) and the optional steps (F) to (H) which are described herein.Type: ApplicationFiled: November 26, 2015Publication date: September 28, 2017Inventors: Igor SHISHKOV, Wolfgang ROHDE, Alexej MICHAILOVSKI, Andreas LUZ, Reinhold RIEGER, Petra JOHN, Imme DOMKE
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Publication number: 20160339446Abstract: The present invention relates to core-shell-particles, wherein the core comprises at least one metal, or a compound thereof, or a mixture of at least one metal or a compound thereof and at least one semimetal or a compound thereof, and the shell comprises at least one silicon comprising polymer, to a process for the preparation of these core-shell-particles, to the use of these core-shell-particles in an agglomeration-deagglomeration process, in particular in chemical, physical or biological test methods or separation processes, decontamination processes, water purification, recycling of electrical/electronic scrap or gravity separation, and to a process for separating at least one first material from a mixture comprising this at least one first material and at least one second material.Type: ApplicationFiled: January 22, 2015Publication date: November 24, 2016Inventors: Florian BLASBERG, Andreas LUZ, Igor SHISHKOV, David J. GILBERT, Wolfgang ROHDE
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Patent number: 9468906Abstract: The present invention relates to a porous inorganic body comprising pores A having a pore size SA in the range of from 0.005 to 20 micrometer and a total pore volume VA, and comprising pores B having a pore size SB in the range of from more than 20 to 1000 micrometer and a total pore volume VB, wherein the total pore volume of the pores having a pore size in the range of from 0.005 to 1000 micrometer is VC and wherein the ratio RA=VA/VC is in the range of from 0.3 to 0.7 as determined via mercury intrusion porosimetry.Type: GrantFiled: February 28, 2013Date of Patent: October 18, 2016Assignee: BASF SEInventors: Christian Baltes, Tobias Rosendahl, Igor Shishkov, Torsten Mäurer, Wolfgang Rohde, Martin Kraus, Norbert Güntherberg, Isa Alexandra Queiroz Da Fonseca, Alfons Jochum, Siegbert Bouche
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Patent number: 9394212Abstract: In a process for the cooligomerization of olefins, an olefin starting material comprising olefins having n carbon atoms and olefins having 2n carbon atoms is reacted over an olefin oligomerization catalyst to give a reaction product. The process is carried out under such conditions that the conversion of olefins having 2n carbon atoms is less than 10%. Both the cooligomer having 3n carbon atoms and the olefin having 2n carbon atoms which has been separated off from the reaction product have a high hydroformylatability.Type: GrantFiled: June 14, 2011Date of Patent: July 19, 2016Assignee: BASF SEInventors: Wolfgang Rohde, Qiang Miao, Stefan Bitterlich, Gauthier Luc Maurice Averlant, Hans-Guenter Wagner, Beatrice Röβler-Feigel
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Patent number: 9114380Abstract: The invention relates to a method for conditioning double metal catalysts which are used in the production of polyether polyols. The conditioning enhances the performance of the catalyst, so that lower concentrations of the DMC catalyst can be used in polyether polyol production.Type: GrantFiled: October 1, 2010Date of Patent: August 25, 2015Assignee: BASF SEInventors: Igor Shishkov, Sirus Zarbakhsh, Ronald Adelmann, Wolfgang Rohde, Achim Loeffler
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Patent number: 8894960Abstract: A process is proposed for reprocessing the exhaust gas from a plant for producing hydroxylamine or hydroxylammonium salts by catalytic reduction of nitrogen monoxide with hydrogen for the purpose of utilization of at least a part of the nitrogen monoxide and if appropriate hydrogen present in the exhaust gas for producing hydroxylamine or hydroxylammonium salts, which comprises, in a first separation stage, selectively separating off nitrogen monoxide from the exhaust gas of the plant for producing hydroxylamine or hydroxylammonium salts.Type: GrantFiled: November 30, 2007Date of Patent: November 25, 2014Assignee: BASF SEInventors: Carsten Oost, Wolfgang Rohde, Christian Miller, Manfred Stroezel, Alfred Thome, Wilfried Berning
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Patent number: 8853478Abstract: The present invention relates to an integrated method for producing cellulose and at least one low-molecular-weight reusable material, in which a starting material containing lignocellulose is provided and subjected to a decomposition with a processing medium. A fraction enriched with cellulose and a fraction depleted of cellulose is then isolated from the decomposition material, the depleted fraction of cellulose being subjected to a treatment during which at least one low-molecular-weight reusable material is obtained.Type: GrantFiled: September 7, 2009Date of Patent: October 7, 2014Assignee: BASF SEInventors: Otto Machhammer, Jochem Henkelmann, Wolfgang Rohde, Mario Emmeluth, Sonja Giesa
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Patent number: 8617344Abstract: The present invention relates to a multistage process for producing hollow plastic articles, encompassing the following steps: a) producing a tubular plastic parison by means of extrusion or coextrusion; b) cutting open the plastic parison to produce two planar-surface parts; c) molding the planar-surface parts in two mold halves to give half shells, where a removable intermediate frame separates the mold halves from one another at least along the peripheral edges, so that the semifinished products/half shells are not in contact with one another; d) opening the mold halves and removing the intermediate frame; e) closing the mold halves, with the result that the half shells come into contact with one another along a peripheral rim; and f) bonding the half shells to give a hollow article.Type: GrantFiled: September 28, 2012Date of Patent: December 31, 2013Assignee: Basell Polyolefine GmbHInventors: Wolfgang Rohde, Jörg Meyer, Rainer Sattel, Jörg Schnorr, Bernhard Springholz, Roger Weinlein, Andreas Wüst
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Publication number: 20130231493Abstract: The present invention relates to a porous inorganic body comprising pores A having a pore size SA in the range of from 0.005 to 20 micrometer and a total pore volume VA, and comprising pores B having a pore size SB in the range of from more than 20 to 1000 micrometer and a total pore volume VB, wherein the total pore volume of the pores having a pore size in the range of from 0.005 to 1000 micrometer is VC and wherein the ratio RA=VA/VC is in the range of from 0.3 to 0.7 as determined via mercury intrusion porosimetry.Type: ApplicationFiled: February 28, 2013Publication date: September 5, 2013Applicant: BASF SEInventors: Igor Shishkov, Torsten Mäurer, Christian Baltes, Tobias Rosendahl, Wolfgang Rohde, Martin Kraus, Norbert Güntherberg, Isa Alexandra Queiroz Da Fonseca, Alfons Jochum, Siegbert Bouche
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Publication number: 20130172177Abstract: A catalyst comprising (i) a support, (ii) metal particles and (iii) a shell which is arranged between the metal particles, wherein the shell (iii) comprises silicon oxide.Type: ApplicationFiled: September 13, 2011Publication date: July 4, 2013Applicant: BASF SEInventors: Imme Domke, Wolfgang Rohde, Piotr Antoni Bazula, Norbert Mronga, Yong Liu, Martin Dieterle, Stanley Roth, Curtis Zimmermann, Xinyi Wei, Philipp Raff, Stephan Andreas Schunk, Olga Gerlach, Andreas Strasser, Michael Paul
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Publication number: 20120253005Abstract: The invention relates to a method for conditioning double metal catalysts which are used in the production of polyether polyols. The conditioning enhances the performance of the catalyst, so that lower concentrations of the DMC catalyst can be used in polyether polyol production.Type: ApplicationFiled: October 1, 2010Publication date: October 4, 2012Applicant: BASF SEInventors: Igor Shishkov, Sirus Zarbakhsh, Ronald Adelmann, Wolfgang Rohde, Achim Loeffler
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Patent number: 8210015Abstract: A method for rolling plate or strip in a rolling stand with work rolls supported on backup rolls or on intermediate rolls with backup rolls, wherein the adjustment of the roll gap profile is carried out by axial shifting of pairs of rolls provided with curved contours. The adjustment of the roll gap profile is carried out by at least two pairs of rolls, which have differently curved contours and can be axially shifted independently of each other and whose different contours are calculated by splitting the resultant desired roll gap profiles that describe the roll gap profile into at least two different desired roll gap profiles and are transferred to the pairs of rolls.Type: GrantFiled: November 22, 2004Date of Patent: July 3, 2012Assignee: SMS Siemag AktiengesellschaftInventors: Günter Kneppe, Wolfgang Rohde, Sabine Rohde, legal representative
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Publication number: 20120132032Abstract: The present invention relates to a process for the separation of at least one metal from a slag, comprising that at least one metal and further components, comprising at least step (A) grinding the slag, (B) if appropriate, contacting the ground slag of step (A) with at least one surface-active substance and/or at least one magnetic particle, if appropriate in the presence of at least one dispersant, resulting in formation of agglomerates of the at least one metal and the at least one magnetic particle, (C) if appropriate, addition of at least one dispersant to the mixture obtained in step (B) to give a dispersion having a suitable concentration, and (D) separation of the agglomerates from the mixture of step (B) or (C) by application of a magnetic field, and to the use of at least one magnetic particle for the separation of slag.Type: ApplicationFiled: November 29, 2011Publication date: May 31, 2012Applicants: BASF Corporation, BASF SEInventors: Imme Domke, Wolfgang Rohde, Reinhold Rieger, Alexej Michailovski, Dennis Loesch, Stephan Deuerlein, Igor Shishkov, David F. Blackwood, Henrik Junicke, Frank Bozich
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Publication number: 20120129685Abstract: The invention relates to a process for preparing multimetal cyanide compounds by reacting the aqueous solution of a metal salt a) with the aqueous solution of a hexacyanometalate compound b), wherein the mixture of the solutions a) and b) flows over the surface of a rotating body A to an outer region of the surface of the rotating body A and is flung off from there.Type: ApplicationFiled: August 11, 2010Publication date: May 24, 2012Applicant: BASF SEInventors: Jochen Mezger, Burkhard Walther, Helmut Mack, Simone Klapdohr, Zhizhong Cai, Silke Flakus, Tobias Austermann, Bernhard Hoffner, Wolfgang Rohde, Bernd Bechtloff, Michael Triller, Sirus Zarbakhsh
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Publication number: 20110306812Abstract: In a process for the cooligomerization of olefins, an olefin starting material comprising olefins having n carbon atoms and olefins having 2n carbon atoms is reacted over an olefin oligomerization catalyst to give a reaction product. The process is carried out under such conditions that the conversion of olefins having 2n carbon atoms is less than 10%. Both the cooligomer having 3n carbon atoms and the olefin having 2n carbon atoms which has been separated off from the reaction product have a high hydroformylatability.Type: ApplicationFiled: June 14, 2011Publication date: December 15, 2011Applicant: BASF SEInventors: Wolfgang Rohde, Qiang Miao, Stefan Bitterlich, Gauthier Luc Maurice Averlant, Hans-Guenter Wagner, Beatrice Rößler-Feigel
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Publication number: 20110272623Abstract: The present invention relates to a dispersion at least comprising particles comprising at least one magnetic iron oxide as component A and a solvent mixture as component B comprising (B1) 5% to 95% by weight of at least one water-miscible organic solvent LM as component B1 and (B2) 5% to 95% by weight of water as component B2, the sum of components B1 and B2 making 100% by weight, and to a method for producing a dispersion of this kind, comprising at least the steps (I) mixing particles comprising at least one magnetic iron oxide with at least one water-miscible organic solvent LM and water, (II) homogenizing the mixture from step (I), where a shearing energy of at least 2 kW/m3 is introduced into the mixture in step (II).Type: ApplicationFiled: May 5, 2011Publication date: November 10, 2011Applicants: Siemens AG, BASF SEInventors: Imme DOMKE, Wolfgang ROHDE, Daniel Schäfer, Alexej MICHAILOVSKI, Jürgen OSWALD, Reinhold RIEGER, Piyada CHAROENSIRISOMBOON, Florian STRICKER, Alexander WALLON, Jenny REUBER, Jan-Dirk ARNDT
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Publication number: 20110268652Abstract: The present invention relates to an integrated method for producing cellulose and at least one low-molecular-weight reusable material, in which a starting material containing lignocellulose is provided and subjected to a decomposition with a processing medium. A fraction enriched with cellulose and a fraction depleted of cellulose is then isolated from the decomposition material, the depleted fraction of cellulose being subjected to a treatment during which at least one low-molecular-weight reusable material is obtained.Type: ApplicationFiled: September 7, 2009Publication date: November 3, 2011Applicant: BASF SEInventors: Otto Machhammer, Jochem Henkelmann, Wolfgang Rohde, Mario Emmeluth, Sonja Giesa
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Patent number: 8022124Abstract: Process for preparation of ethylene homopolymers or copolymers, comprising the steps of a) polymerization of ethylene or of ethylene with one or more other 1-olefins in the presence of a chromium catalyst at temperatures of from 20 to 200° C. and at pressures of from 0.1 to 20 MPa, where the chromium catalyst can be prepared via application of one or more chromium compounds to a silicate support and subsequent thermal activation under oxidative conditions at temperatures of from 620 to 900° C.; b) mixing of the polyethylene in the melt in the presence of from 1000 to 2000 ppm of an antioxidant comprising at least one sterically hindered phenol and comprising at least one phosphite in a mixing ratio of from 1:5 to 5:1, with specific energy input of at least 0.17 kWh/kg.Type: GrantFiled: January 24, 2007Date of Patent: September 20, 2011Assignee: Basell Polyolefine GmbHInventors: Wolfgang Rohde, Lutz-Gerd Heinicke, Rainer Karer, Manfred Hecker