Patents by Inventor Werner Roell
Werner Roell 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: 7322317Abstract: The invention relates to a heat-recovery boiler (3) consisting of a tube bundle heat exchanger (7) which is incorporated into a pressure vessel (2) downstream of a gasification device. Displacement bodies (9) are inserted into pipes which are flowed around by hot process gas. According to said invention, in order to avoid corrosion problems like metal dusting, said displacement bodies (9) are made of graphite.Type: GrantFiled: February 7, 2004Date of Patent: January 29, 2008Assignee: Lurgi AGInventors: Walter Boll, Werner Röll, Christoph Erdmann, Ulrich Wagner, Thomas Wurzel
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Patent number: 6099922Abstract: The metal surface protected against metal-dusting corrosion has an insulating layer of a gas-permeable, thermally insulating material. The side of the thermal insulating layer that is colder during operation is in direct vicinity of the metal surface, and the side of the insulating layer that is hotter during operation is heated by a gas stream containing carbon monoxide, which in addition contains hydrogen and/or steam and has a temperature in the range from 300 to 1700.degree. C. In the region between the metal surface to be protected and the hot side of the insulating layer a catalyst is provided for reacting carbon monoxide with hydrogen and/or steam.Type: GrantFiled: March 3, 1997Date of Patent: August 8, 2000Assignee: Metallgesellschaft AktiengesellschaftInventors: Walter Boll, Friedrich Hohmann, Werner Roell
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Patent number: 6096912Abstract: Abstract of the Disclosure: Catalyst systems for the polymerization of C.sub.2 -C.sub.10 -alk-1-enes contain, as active components,a) a metallocene complex of the general formula I ##STR1## where M is titanium, zirconium, hafnium, vanadium, niobium or tantalum, X is halogen or C.sub.1 -C.sub.8 -alkyl, Y is carbon, phosphorus, sulfur, silicon or germanium, Z is C.sub.1 -C.sub.8 -alkyl, C.sub.3 -C.sub.10 -cycloalkyl or C.sub.6 -C.sub.10 -aryl, R.sup.1 and R.sup.2 are identical or different and are each C.sub.1 -C.sub.4 -alkyl, R.sup.3 to R.sup.6 are identical or different and are each hydrogen or C.sub.1 -C.sub.8 -alkyl, or two adjacent radicals R.sup.3 and R.sup.4 and R.sup.5 and R.sup.6 in each case together form a hydrocarbon ring system of 4 to 15 carbon atoms and n is 0, 1 or 2, andb) an open-chain or cyclic alumoxane compound of the general formula II or III ##STR2## where R.sup.7 is C.sub.1 -C.sub.4 -alkyl and n is from 5 to 30.Type: GrantFiled: May 3, 1996Date of Patent: August 1, 2000Assignee: BASF AktiengesellschaftInventors: Eberhard Karl, Werner Roell, Hans Brintzinger, Bernhard Rieger, Udo Stehling
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Patent number: 5756608Abstract: A process for polymerizing C.sub.2 -C.sub.10 -alk-1-enes in the presence of a metallocene complex of the formula I ##STR1## where the substituent groups have the meanings described in the specification.Type: GrantFiled: July 12, 1996Date of Patent: May 26, 1998Assignee: BASF AktiengesellschaftInventors: Franz Langhauser, David Fischer, Jurgen Kerth, Gunther Schweier, Hans-Herbert Brintzinger, Elke Barsties, Werner Roell
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Patent number: 5627246Abstract: A supported catalyst system that is obtained bya) reacting a finely divided carrier with an a-trisalkoxy-silyl-.omega.-haloalkyl compound,b) adding a metallocene complex of the indicated formula I to the reaction product of a);c) reacting the product of b) with a quaternizing agent; andd) optionally adding an open-chain or cyclic alumoxane compound.The catalyst system can be used to prepare polymers of C.sub.2 -C.sub.10 -alk-1-enes.Type: GrantFiled: March 1, 1995Date of Patent: May 6, 1997Assignee: BASF AktiengesellschaftInventors: Franz Langhauser, David Fischer, J urgen Kerth, G unther Schweier, Elke Barsties, Hans-Herbert Brintzinger, Stefan Schaible, Werner Roell
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Patent number: 5585509Abstract: Metallocene complexes of the general formula I ##STR1## where the substituents Y, M, x, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.6, R.sup.7, R.sup.8, and R.sup.9 are as described in the disclosure, and ligand systems of the general formula II ##STR2## as intermediates.Type: GrantFiled: March 1, 1995Date of Patent: December 17, 1996Assignee: BASF AktiengesellschaftInventors: Franz Langhauser, David Fischer, J urgen Kerth, G unther Schweier, Hans-Herbert Brintzinger, Elke Barsties, Werner Roell
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Patent number: 5514760Abstract: Catalyst systems for the polymerization of C.sub.2 -C.sub.10 -alk-1-enes contain, as active components,a) a metallocene complex of the general formula I ##STR1## where M is titanium, zirconium, hafnium, vanadium, niobium or tantalum, X is halogen or C.sub.1 -C.sub.8 -alkyl, Y is carbon, phosphorus, sulfur, silicon or germanium, Z is C.sub.1 -C.sub.8 -alkyl, C.sub.3 -C.sub.10 -cycloalkyl or C.sub.6 -C.sub.10 -aryl, R.sup.1 and R.sup.2 are identical or different and are each C.sub.1 -C.sub.4 -alkyl, R.sup.3 to R.sup.6 are identical or different and are each hydrogen or C.sub.1 -C.sub.8 -alkyl, or two adjacent radicals R.sup.3 and R.sup.4 and R.sup.5 and R.sup.6 in each case together form a hydrocarbon ring system of 4 to 15 carbon atoms and n is 0, 1 or 2, andb) an open-chain or cyclic alumoxane compound of the general formula II or III ##STR2## where R.sup.7 is C.sub.1 -C.sub.4 -alkyl and n is from 5 to 30.Type: GrantFiled: January 19, 1995Date of Patent: May 7, 1996Assignee: BASF AktiengesellschaftInventors: Eberhard Karl, Werner Roell, Hans Brintzinger, Bernhard Rieger, Udo Stehling
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Patent number: 5496902Abstract: Catalyst systems for the polymerization of C.sub.2 -C.sub.10 -alk-1-enes contain, as active components,a) a metallocene complex of the general formula I ##STR1## where M is a metal of the subgroup III, IV or v of the Periodic Table of elements or a metal selected from the group consisting of the lanthanides,X is fluorine, chlorine, bromine, iodine, hydrogen, C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.15 -aryl or --OR.sup.7,R.sup.7 is C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.15 -aryl, alkylaryl, arylalkyl, fluoroalkyl or fluoroaryl, in each case having 1 to 10 carbon atoms in the alkyl radical and 6 to 20 carbon atoms in the aryl radical,n is the valency of M minus two,R.sup.1 to R.sup.6 are each hydrogen, C.sub.1 -C.sub.10 -alkyl, 5-membered to 7-membered cycloalkyl which in turn may carry C.sub.1 -C.sub.10 -alkyl as a substituent, C.sub.6 -C.sub.15 -aryl or arylalkyl, where two adjacent radicals together may furthermore form a cyclic group of 4 to 15 carbon atoms, or Si(R.sup.8).sub.3,R.sup.8 is C.sub.1 -C.Type: GrantFiled: June 13, 1994Date of Patent: March 5, 1996Assignee: BASF AktiengesellschaftInventors: Kaspar Evertz, Ruerger Schlund, Guenther Schweier, Hans Brintzinger, Werner Roell, Peter Jutzi, Ingrid Mieling, Winfried Mengele
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Patent number: 5491205Abstract: Polymers of C.sub.2 -C.sub.10 -alk-1-enes are prepared at from 0.5 to 3000 bar and from -50.degree. to 300.degree. C. using a catalyst system by a process in which the catalyst system used is one which contains, as active components:a) a metallocene complex of the general formula I ##STR1## where M is titanium, zirconium, hafnium, vanadium, niobium or tantalum,X is fluorine, chlorine, bromine, iodine, hydrogen, C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.15 -aryl or --OR.sup.7,R.sup.7 is C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.15 -aryl, alkylaryl, arylalkyl, fluoroalkyl or fluoraryl, where each alkyl radical is of 1 to 10 carbon atoms and each aryl radical is of 6 to 20 carbon atoms,R.sup.1 to R.sup.6 are each hydrogen, C.sub.1 -C.sub.10 -alkyl, 5-membered to 7-membered cycloalkyl, which in turn may carry C.sub.1 -C.sub.10 -alkyl radicals as substituents, C.sub.6 -C.sub.15 -aryl or arylalkyl, where two adjacent radicals together may furthermore be a cyclic group of 4 to 15, carbon atoms, or Si(R.sup.8).sub.3R.Type: GrantFiled: October 28, 1994Date of Patent: February 13, 1996Assignee: BASF AktiengesellschaftInventors: Franz Langhauser, Jurgen Kerth, Gunther Schweier, Hans-Herbert Brintzinger, Stefan Mansel, Werner Roell, Robin Kirsten
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Patent number: 5296434Abstract: Catalyst systems for the polymerization of C.sub.2 -C.sub.10 -alk-1-enes contain, as active components,a) a metallocene complex of the general formula I ##STR1## where M is titanium, zirconium, hafnium, vanadium, niobium or tantalum, X is halogen or C.sub.1 --C.sub.8 -alkyl, Y is carbon, phosphorus, sulfur, silicon or germanium, Z is C.sub.1 -C.sub.8 -alkyl, C.sub.3 -C.sub.10 -cycloalkyl or C.sub.6 -C.sub.10 -aryl, R.sup.1 and R.sup.2 are identical or different and are each C.sub.1 -C.sub.4 -alkyl, R.sup.3 to R.sup.6 are identical or different and are each hydrogen or C.sub.1 -C.sub.8 -alkyl, or two adjacent radicals R.sup.3 and R.sup.4 and R.sup.5 and R.sup.6 in each case together form a hydrocarbon ring system of 4 to 15 carbon atoms and n is 0, 1 or 2, andb) an open-chain or cyclic alumoxane compound of the general formula II or III ##STR2## where R.sup.7 is C.sub.1 -C.sub.4 -alkyl and n is from 5 to 30.Type: GrantFiled: June 18, 1992Date of Patent: March 22, 1994Assignee: BASF AktiengesellschaftInventors: Eberhard Karl, Werner Roell, Hans Brintzinger, Bernhard Rieger, Udo Stehling
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Patent number: 5132262Abstract: The present invention relates to soluble catalyst systems for the polymerization of C.sub.2 - to C.sub.10 -alk-l-enes, containing, as active constituents,a) a metallocene complex of the general formula I ##STR1## where R.sup.1 and R.sup.2 are branched C.sub.4 - to C.sub.10 -alkyl, 5- to 7-membered cycloalkyl, which may itself be substituted by C.sub.1 - to C.sub.6 -alkyl, or are C.sub.6 - to C.sub.15 -aryl or aralkyl;R.sup.3 to R.sup.6 are C.sub.1 - to C.sub.8 -alkyl,M is titanium, zirconium, hafnium or vanadium,Y is silicon or germanium, andX is halogen or C.sub.1 - to C.sub.8 -alkyl,b) and an open-chain or cyclic aluminoxane compound of the general formula II or III ##STR2## where R.sup.7 is C.sub.1 -C.sub.4 -alkyl, and m is from 5 to 30. These catalyst systems are particularly suitable for the preparation of polypropylene and copolymers of propylene with lesser amounts of other C.sub.2 - to C.sub.10 -alky-l-enes.Type: GrantFiled: February 11, 1991Date of Patent: July 21, 1992Assignee: BASF AktiengesellschaftInventors: Bernhard Rieger, Hans Brintzinger, Werner Roell, Annette Reinmuth, Elke Barsties