Patents by Inventor Andreas Meiswinkel
Andreas Meiswinkel 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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CATALYST COMPOSITION AND PROCESS FOR OLIGOMERIZATION OF ETHYLENE TO PRODUCE 1-HEXENE AND/OR 1-OCTENE
Publication number: 20170203288Abstract: The present invention relates to a catalyst composition and a process for the oligomerization of ethylene to produce 1-hexene or 1-octene, wherein the catalyst composition comprises a chromium compound; an NPNPN ligand of the formula (R1) (R2)N—P(R3)—N(R4)—P(R5)—N(R6)(R7), wherein R1, R2, R3, R4, R5, R6 and R7 are each independently hydrogen, halogen, amino, tri-methylsilyl or C1-C20 hydrocarbyl, preferably straight-chain or branched C1-C10 alkyl, phenyl, C6-C20 aryl or C6-C20 alkyl-substituted phenyl.Type: ApplicationFiled: July 22, 2015Publication date: July 20, 2017Inventors: MOHAMMED H. AL-HAZMI, ABDULLAH ALQAHTANI, UWE ROSENTHAL, BERND H. MULLER, NORMEN PEULECKE, MARCO HARFF, ANINA WOHL, ANDREAS MEISWINKEL, HEINZ BOLT, WOLFGANG MULLER -
Publication number: 20170165657Abstract: A pre-formation unit, includes: a first vessel comprising a solution of co-catalyst and modifier; a second vessel comprising chromium compound and ligand; wherein the first and second vessel are connected via lines to a mixing unit, wherein each line has a flow control valve; wherein the mixing unit is connected via a line having a flow control valve to an oligomerization reactor; wherein gas inlets are each connected to the first vessel and to the second vessel, and wherein a portion of each of the first vessel, the second vessel, the mixing unit, and the flow control valves are within a temperature controlled enclosure.Type: ApplicationFiled: February 3, 2015Publication date: June 15, 2017Inventors: Shehzada Khurram, Shahid Azam, Abdullah Mohammad Al-Qahtani, Abduljelil Iliyas, Andreas Meiswinkel, Wolfgang Mueller, Anina Woehl, Marco Marco Harff, Heinz Boelt
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Publication number: 20170128925Abstract: A catalyst composition including: (a) a chromium compound; (b) a ligand of the general structure R1R2P—N(R3)—P(R4)—NR5R6 or??(A) R1R2P—N(R3)—P(XR7)R8 or R1R2P—N(R3)—P(XR7)2, with X=O or S,??(B) wherein R1, R2, R3, R4, R5, R6, R7 and R8 are independently C1-C10-alkyl, C6-C20-aryl, C3-C10-cycloalkyl, aralkyl, alkylaryl, or trialkylsilyl, or any cyclic derivatives of (A) and (B), wherein at least one of the P or N atoms of the PNPN-unit or PNP-unit is a member of the ring system, the ring system being formed from one or more constituent compounds of structures (A) or (B) by substitution; and (c) an activator or co-catalyst; and a process for tri- and/or tetramerization.Type: ApplicationFiled: December 15, 2016Publication date: May 11, 2017Inventors: ANINA WOEHL, ANDREAS MEISWINKEL, HEINZ BOELT, BERND H. MUELLER, WOLFGANG MUELLER, NORMEN PEULECKE, UWE ROSENTHAL, MARCO HARFF, MOHAMMED H. AL-HAZMI, ABDULLAH ALQAHTANI
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Patent number: 9593055Abstract: The present invention relates to a method for preparing linear alpha-olefins (LAO) by oligomerization of ethylene in the presence of solvent and homogenous catalyst, comprising the steps of: (i) feeding ethylene, solvent and catalyst into an oligomerization reactor, (ii) oligomerizing the ethylene in the reactor, (iii) removing a reactor outlet stream comprising solvent, linear alpha-olefins, ethylene, and catalyst from the reactor via a reactor outlet piping system, (iv) transferring the reactor outlet stream to a catalyst deactivation and removal step, and (v) deactivating and removing the catalyst from the reactor outlet stream, characterized in that at least one organic amine is added into the oligomerization reactor and/or into the reactor outlet piping system.Type: GrantFiled: January 7, 2009Date of Patent: March 14, 2017Assignees: SAUDI BASIC INDUSTRIES CORPORATION, LINDE AGInventors: Vugar Aliyev, Fuad Mosa, Mohammed Al-Hazmi, Syriac Palackal, Ayed Al-Ayed, Sultan Al-Otaibi, Mohammed Zahoor, Wolfgang Müller, Peter M. Fritz, Heinz Bölt, Anton Wellenhofer, Florian Winkler, Uwe Rosenthal, Hans-Jörg Zander, Normen Peulecke, Bernd H. Müller, Karl-Heinz Hofmann, Helmut Fritz, Carsten Taube, Andreas Meiswinkel, Richard Schneider, Anina Woehl
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Publication number: 20160326070Abstract: A process for oxydehydrogenating an alkane to a corresponding alkene, particularly ethane to ethylene, wherein a feed comprising the alkane, an oxygen-containing oxidizing agent and a diluent comprising CO2 are provided to a reactor. Oxidative dehydrogenation with oxygen takes place in the reactor in the presence of a catalyst to convert the alkane to a product stream which includes the corresponding alkene. The oxygen used as the oxidizing agent may be supplied in stoichiometric amount or in stoichiometric excess.Type: ApplicationFiled: January 22, 2015Publication date: November 10, 2016Inventors: Florian Winkler, Andreas Meiswinkel, Desislava Tota
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Publication number: 20160207035Abstract: A process for preparing a catalyst provided in the form of a metal oxide catalyst having at least one element selected from Mo, Te, Nb, V, Cr, Dy, Ga, Sb, Ni, Co, Pt and Ce. The catalyst is subjected to an aftertreatment to increase the proportion of the M1 phase, by contacting the catalyst with steam at a pressure below 100 bar or by contacting the catalyst with oxygen to obtain an aftertreated catalyst. The aftertreated catalyst may be used for oxidative dehydrogenation processes.Type: ApplicationFiled: August 7, 2014Publication date: July 21, 2016Inventors: Hans-Jörg Zander, Florian Winkler, Andreas Meiswinkel, Karl-Heinz Hofmann, Christian Thaller, Johannes A. Lercher, Daniela Hartmann, Andre Cornelis van Veen, Maria Cruz Sanchez-Sanchez
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Patent number: 9340471Abstract: A process for oligomerization of ethylene, comprising subjecting a catalyst composition to a gas phase of ethylene and conducting an oligomerization, wherein the catalyst composition comprises (a) a chromium compound, (b) a metalated ligand, and (c) an activator or cocatalyst; and catalyst composition as well as a metalated ligand.Type: GrantFiled: February 10, 2014Date of Patent: May 17, 2016Assignees: SAUDI BASIC INDUSTRIES CORPORATION, LINDE AGInventors: Abdullah Mohammad Al-Qahtani, Mohammed H. Al-Hazmi, Uwe Rosenthal, Bernd H. Müller, Normen Peulecke, Marco Harff, Anina Wöhl, Andreas Meiswinkel, Heinz Bölt, Wolfgang Müller
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Patent number: 9284238Abstract: The present invention relates to a method for purification of a hydrocarbon stream containing linear alpha olefins, isomers thereof and at least one organic amine, the linear alpha olefins, isomers and the amine having boiling points under atmospheric pressure which differ by at most 5° C., comprising the step of removing a major amount of the organic amine from the hydrocarbon stream by distillation, wherein the distillation is carried out to that, together with the amine, between 5% and 95 wt % of the isomers, based on the total amount of the isomers in the hydrocarbon stream, are removed from the hydrocarbon stream in an amine/isomer-rich fraction.Type: GrantFiled: September 27, 2011Date of Patent: March 15, 2016Assignees: SAUDI BASIC INDUSTRIES CORPORATION, LINDE AGInventors: Wolfgang Müller, Marco Harff, Anton Wellenhofer, Anina Wöhl, Heinz Bölt, Andreas Meiswinkel
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Patent number: 9221856Abstract: The present invention relates to a method for purifying a crude PNPNH compound by metalation and re-protonation.Type: GrantFiled: February 10, 2014Date of Patent: December 29, 2015Assignees: SAUDI BASIC INDUSTRIES CORPORATION, LINDE AGInventors: Uwe Rosenthal, Bernd H. Müller, Normen Peulecke, Marco Harff, Anina Wöhl, Andreas Meiswinkel, Heinz Bölt, Wolfgang Müller, Abdullah Mohammad Al-Qahtani, Mohammed H. Al-Hazmi, Shahid Majeed Azam
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Patent number: 9206207Abstract: A method for purifying a crude PNPNH compound of the general structure R1R2P—N(R3)—P(R4)—N(R5)—H wherein R1, R2, R3, R4 and R5 are independently halogen, amino, trimethylsilyl, C1-C10-alkyl, substituted C1-C10-alkyl, C6-C20-aryl and substituted C6-C20-aryl, or any cyclic derivative wherein at least one of the P or N atoms of the PNPN—H structure is a member of a ring system, the ring system being formed from one or more constituent compounds of the PNPNH-structure by substitution, the method comprising the steps: A. a) dissolving the crude PNPNH-compound in a C1-C10 alcohol or mixture thereof under heating; b) cooling the solution obtained in step a), c) precipitating the PNPNH compound, separating and optionally drying, or B. (i) washing the crude PNPNH compound with C1-C10 alcohol or a mixture thereof, (ii) separating the PNPNH compound and optionally drying thereof.Type: GrantFiled: February 10, 2014Date of Patent: December 8, 2015Assignees: SAUDI BASIC INDUSTRIES CORPORATION, LINDE AGInventors: Uwe Rosenthal, Bernd H. Müller, Normen Peulecke, Marco Harff, Anina Wöhl, Andreas Meiswinkel, Heinz Bölt, Wolfgang Müller, Abdullah Mohammad Al-Qahtani, Mohammed H. Al-Hazmi, Shahid Majeed Azam
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Publication number: 20150299069Abstract: The present invention relates to a process for the oligomerization of ethylene, comprising: a) oligomerizing of ethylene in a reactor in the presence of solvent and catalyst; b) transferring reactor overhead effluent to an externally located cooling device and recycling condensed effluent into the reactor; c) transferring the reactor bottom effluent to a series of fractionation columns and, in the following order, i) optionally separating C4 fraction, ii) separating C6 fraction, iii) simultaneously separating C8 and C10 fractions and recycling thereof into the reac-tor, and iv) separating residues comprising ?C12 fractions, spent catalyst, polymer material and quench media, from the process, wherein the solvent is separated in any of the steps i)-iv) and/or in an additional step.Type: ApplicationFiled: September 5, 2013Publication date: October 22, 2015Inventors: Shahid Majeed Azam, Abduljelil Iliyas, Abdullah Mohammad Alqahtani, Shehzada Khurram, Anina Wöhl, Wolfgang Müller, Marco Harff, Andreas Meiswinkel, Heinz Bölt
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Publication number: 20150203418Abstract: The present invention relates to a method for oligomerization of ethylene, comprising the steps: a) feeding ethylene, solvent and a catalyst composition comprising catalyst and cocatalyst into a reactor, b) oligomerizing ethylene in the reactor, c) discharging a reactor effluent comprising linear alpha-olefins including 1-butene, solvent, unconsumed ethylene dissolved in the reactor effluent, and catalyst composition from the reactor, d) separating ethylene and 1-butene collectively from the remaining reactor effluent, and e) recycling at least a part of the ethylene and the 1-butene separated in step d) into the reactor.Type: ApplicationFiled: June 5, 2013Publication date: July 23, 2015Inventors: Andreas Meiswinkel, Wolfgang Mueller, Anina Woehl, Marco Harff, Heinz Bolt, Karl-Heinz Hofmann, Hans-Jorg Zander, Anton Wellenhofer, Abduljelil Iliyas, Shehzada Khurram, Shahid Azam, Abdullah Al-Qahtani
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Patent number: 9018431Abstract: The present invention relates to a catalyst composition for oligomerization of ethylene, comprising a chromium compound; a ligand of the general structure R1R2P—N(R3)—P(R4)—N(R5)—H, wherein R1, R2, R3, R4 and R5 are independently selected from halogen, amino, trimethylsilyl, C1-C10-alkyl, aryl and substituted aryl; a modifier containing organic or inorganic halide; and an activator or co-catalyst; and a process for oligomerization utilizing that catalyst.Type: GrantFiled: March 24, 2010Date of Patent: April 28, 2015Assignees: Saudi Basic Industries Corporation, Linde AGInventors: Anina Wöhl, Uwe Rosenthal, Bernd H. Müller, Normen Peulecke, Stephan Peitz, Wolfgang Müller, Heinz Bölt, Andreas Meiswinkel, Bhaskar Reddy Aluri, Mohammed Al-Hazmi, Mohammed Al-Masned, Khalid Al-Eidan, Fuad Mosa
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Patent number: 8809613Abstract: The present invention relates to a method for preparing linear alpha-olefins (LAO) by oligomerization of ethylene in the presence of a solvent and homogeneous catalyst, comprising the steps of: (i) feeding ethylene, solvent and catalyst into an oligomerization reactor, (ii) oligomerizing the ethylene in the reactor, (iii) removing a reactor outlet stream comprising solvent, linear alpha-olefins, optionally unreacted ethylene and catalyst from the reactor via a reactor outlet piping system, (iv) dosing at least one additive selected from the group consisting of alcohols, poly-ethylene glycols, polyethylene glycol monoethers, polyethylene glycol diethers, polyamines, amines, amino alcohols and surfactants, (v) transferring the reactor outlet stream containing the additive to a catalyst deactivation and removal section, and (vi) deactivating the catalyst with caustic and removing the deactivated catalyst from the reactor outlet stream, wherein the residence time of the additive in the reactor outlet stream priType: GrantFiled: May 28, 2010Date of Patent: August 19, 2014Assignees: Saudi Basic Industries Corporation, Linde AGInventors: Peter M. Fritz, Heinz Bölt, Andreas Meiswinkel, Carsten Taube, Florian Winkler, Volker Göke, Wolfgang Müller, Anina Wöhl, Richard Schneider, Uwe Rosenthal, Helmut Fritz, Bernd H. Müller, Normen Peulecke, Stephan Peitz, Bhaskar Reddy Aluri, Mohammed Al-Hazmi, Shahid Majeed Azam, Fuad Mosa, Abdullah Al-Dugathier
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Publication number: 20140228608Abstract: A process for oligomerization of ethylene, comprising subjecting a catalyst composition to a gas phase of ethylene and conducting an oligomerization, wherein the catalyst composition comprises (a) a chromium compound, (b) a metalated ligand, and (c) an activator or cocatalyst; and catalyst composition as well as a metalated ligand.Type: ApplicationFiled: February 10, 2014Publication date: August 14, 2014Applicant: SAUDI BASIC INDUSTRIES CORPORATIONInventors: Abdullah Mohammad Al-Qahtani, Mohammed H. Al-Hazmi, Uwe Rosenthal, Bernd H. Müller, Normen Peulecke, Marco Harff, Anina Wöhl, Andreas Meiswinkel, Heinz Bölt, Wolfgang Müller
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Publication number: 20140228580Abstract: The present invention relates to a method for purifying a crude PNPNH compound by metalation and re-protonation.Type: ApplicationFiled: February 10, 2014Publication date: August 14, 2014Applicants: LINDE AG, SAUDI BASIC INDUSTRIES CORPORATIONInventors: Uwe Rosenthal, Bernd H. Müller, Normen Peulecke, Marco Harff, Anina Wöhl, Andreas Meiswinkel, Heinz Bölt, Wolfgang Müller, Abdullah Mohammad Al-Qahtani, Mohammed H. Al-Hazmi, Shahid Majeed Azam
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Publication number: 20140228594Abstract: A method for purifying a crude PNPNH compound of the general structure R1R2P—N(R3)—P(R4)—N(R5)—H wherein R1, R2, R3, R4 and R5 are independently halogen, amino, trimethylsilyl, C1-C10-alkyl, substituted C1-C10-alkyl, C6-C20-aryl and substituted C6-C20-aryl, or any cyclic derivative wherein at least one of the P or N atoms of the PNPN—H structure is a member of a ring system, the ring system being formed from one or more constituent compounds of the PNPNH-structure by substitution, the method comprising the steps: A. a) dissolving the crude PNPNH-compound in a C1-C10 alcohol or mixture thereof under heating; b) cooling the solution obtained in step a), c) precipitating the PNPNH compound, separating and optionally drying, or B. (i) washing the crude PNPNH compound with C1-C10 alcohol or a mixture thereof, (ii) separating the PNPNH compound and optionally drying thereof.Type: ApplicationFiled: February 10, 2014Publication date: August 14, 2014Applicants: LINDE AG, SAUDI BASIC INDUSTRIES CORPORATIONInventors: Uwe Rosenthal, Bernd H. Müller, Normen Peulecke, Marco Harff, Anina Wöhl, Andreas Meiswinkel, Heinz Bölt, Wolfgang Müller, Abdullah Mohammad Al-Qahtani, Mohammed H. Al-Hazmi, Shahid Majeed Azam
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Publication number: 20140005034Abstract: The present invention relates to a method for preparing a catalyst composition for the oligomerization of ethylene and a respective catalyst composition pre-formation unit.Type: ApplicationFiled: January 11, 2012Publication date: January 2, 2014Applicant: Saudi Basic Industries CorporationInventors: Anina Wöhl, Wolfgang Müller, Heinz Bölt, Andreas Meiswinkel, Uwe Rosenthal, Bernd Müller, Normen Peulecke, Christian Thaller, Marco Harff, Stephan Peitz, Fuad Mosa, Mohammed H. Al-Hazmi, Shahid Azam
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Publication number: 20130267752Abstract: The present invention relates to a method for purification of a hydrocarbon stream containing linear alpha olefins, isomers thereof and at least one organic amine, the linear alpha olefins, isomers and the amine having boiling points under atmospheric pressure which differ by at most 5° C., comprising the step of removing a major amount of the organic amine from the hydrocarbon stream by distillation, wherein the distillation is carried out to that, together with the amine, between 5% and 95 wt % of the isomers, based on the total amount of the isomers in the hydrocarbon stream, are removed from the hydrocarbon stream in an amine/isomer-rich fraction.Type: ApplicationFiled: September 27, 2011Publication date: October 10, 2013Applicants: LINDE AG, SAUDI BASIC INDUSTRIES CORPORATIONInventors: Wolfgang Müller, Marco Harff, Anton Wellenhofer, Anina Wöhl, Heinz Bölt, Andreas Meiswinkel
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Publication number: 20120184692Abstract: The present invention relates to a method for preparing linear alpha-olefins (LAO) by oligomerization of ethylene in the presence of a solvent and homogeneous catalyst, comprising the steps of: (i) feeding ethylene, solvent and catalyst into an oligomerization reactor, (ii) oligomerizing the ethylene in the reactor, (iii) removing a reactor outlet stream comprising solvent, linear alpha-olefins, optionally unreacted ethylene and catalyst from the reactor via a reactor outlet piping system, (iv) dosing at least one additive selected from the group consisting of alcohols, poly-ethylene glycols, polyethylene glycol monoethers, polyethylene glycol diethers, polyamines, amines, amino alcohols and surfactants, (v) transferring the reactor outlet stre con the additive to a catalyst deactivation and removal section, and (vi) deactivating the catalyst with caustic and removing the deactivated catalyst from the reactor outlet stream, wherein the residence time of the additive in the reactor outlet stream prior to mType: ApplicationFiled: May 28, 2010Publication date: July 19, 2012Inventors: Peter M. Fritz, Heinz Bölt, Andreas Meiswinkel, Carsten Taube, Florian Winkler, Volker Göke, Wolfgang Müller, Anina Wöhl, Richard Schneider, Uwe Rosenthal, Helmut Fritz, Bernd H. Müller, Normen Peulecke, Stephan Peitz, Bhaskar Reddy Aluri, MOhammed Al-Hazmi, Shahid Majeed Azam, Fuad Mosa, Abdullah Al-Dugathier