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| Number | Title | Issue Date |
| 7932425 | Method of enhancing an aromatization catalyst A hydrocarbon aromatization process comprising adding a nitrogenate, an oxygenate, or both to a hydrocarbon stream to produce an enhanced hydrocarbon stream, and contacting the enhanced hydrocarbon stream with an aromatization catalyst, thereby producing an aromatiz... | 04/26/2011 |
| 7906696 | Process of using zeolite catalyst for hydrocarbon conversion This invention is for a catalyst for conversion of a hydrocarbonaceous feed. The catalyst is a zeolite aluminosilicate with a silicon to aluminum molar ratio from about 70:1 to about 100:1 on which a noble metal has been deposited. The zeolite catalyst may contain o... | 03/15/2011 |
| 7902413 | Aromatization of alkanes using a germanium-zeolite catalyst This invention relates to a process for the aromatization of C6 to C12 alkanes, such as hexane, heptane and octane, to aromatics, such as benzene, ethyl benzene, toluene and xylenes, with a germanium-containing zeolite catalyst. The catalyst is... | 03/08/2011 |
| 7851664 | Methods of isomerizing xylenes with a catalyst reduced in the presence of hydrogen and a base A xylene isomerization process includes introducing gas comprising hydrogen and a base to a reaction zone in which a catalyst comprising a Group VIII metal and a zeolite support resides. In one embodiment, the base may be formed in situ within the reaction zone from... | 12/14/2010 |
| 7439409 | Process for para-xylene production from light aliphatics Low-value mixed butanes are processed to obtain a high yield of high-purity para-xylene. Processing steps may comprise fractionation to recover isobutane, dehydrogenation of the isobutane to isobutene, dimerization of the isobutene to obtain C8 iso-olefin... | 10/21/2008 |
| 7321058 | Method for producing acrolein and/or acrylic acid Acrolein and/or acrylic acid are prepared from propane and/or propene by a process comprising the following steps: (a) separation of propane and/or propene from a propane- and/or propene-containing gas mixture by absorption in an absorbent, (b) separation of the pro... | 01/22/2008 |
| 7247593 | Catalyst for aromatization of alkanes, process of making and using thereof A catalyst, a process for making the catalyst and a process for using the catalyst in aromatization of alkanes to aromatics, specifically, aromatization of alkanes having two to six carbon atoms per molecule, such as propane, to aromatics, such as benzene, toluene a... | 07/24/2007 |
| 7220885 | Catalyst treatment useful for aromatics conversion process A process for preparing a transalkylation catalyst, the catalyst itself, and a transalkylation process for using the catalyst are herein disclosed. The catalyst comprises rhenium metal on a solid-acid support such as mordenite, which has been treated with a sulfur-b... | 05/22/2007 |
| 7214644 | Cross-coupling reactions A method for producing a copper/palladium colloid catalyst useful for Suzuki couplings. ... | 05/08/2007 |
| 7199070 | Conversion catalyst for ethylbenzene containing xylenes and process for converting ethylbenzene containing xylenes by using catalyst A catalyst in which X-ray diffraction intensity ratio of the crystal lattice plane spacing d-value of 0.196±0.002 nm to the crystal lattice plane spacing d-value of 0.386±0.008 nm is in a range from 7:100 to 35:100 and a process for making the catalyst to contact ... | 04/03/2007 |
| 7186870 | Process for the preparation of 1,3-substituted indenes and aryl-fused azapolycyclic compounds The present invention relates to processes for the preparation of any of the intermediate 1,3-substituted indenes of the formulae (Ia), (Ib) and (Ic) or a mixture thereof: wherein R1, R2, R | 03/06/2007 |
| 7186871 | Process for alkane aromatization using platinum-zeolite catalyst Aromatization of alkanes having one to four carbon atoms per molecule to aromatics, such as benzene, toluene and xylenes (BTX), uses a catalyst of a crystalline zeolite on which platinum has been deposited, specifically a platinum-containing ZSM-5. A byproduct of th... | 03/06/2007 |
| 7186872 | Catalyst for aromatization of alkanes, process of making and process of using thereof A catalyst of a gallium zeolite on which platinum (Pt/Ga-ZSM-5) has been deposited may be used for aromatization of alkanes having two to six carbon atoms per molecule, such as ethane, propane, butane, etc., to aromatics, such as benzene, toluene and xylenes (BTX). ... | 03/06/2007 |
| 7153801 | Aromatization catalyst and methods of making and using same A method of making a catalyst composition, comprising impregnating a large pore zeolite support with a platinum precursor and at least one organic ammonium halide precursor. In an embodiment, the ammonium halide precursor is represented by the formula N(R)4 | 12/26/2006 |
| 7094724 | Catalytic solid supported on calcined hydrotalcite for olefinic polymerisation Catalyst solid for olefin polymerization comprising A) at least one calcined hydrotalcite and B) at least one organic transition metal compound, and also a catalyst system comprising the catalyst solid, the use of the catalyst sol... | 08/22/2006 |
| 7091372 | Process for the preparation of 1,3-substituted indenes and aryl-fused azapolycyclic compounds The present invention relates to processes for the preparation of any of the intermediate 1,3-substituted indenes of the formulae (Ia), (Ib) and (Ic) or a mixture thereof: wherein R1, R2, R | 08/15/2006 |
| 7053258 | Process for selectively producing aromatic compounds A process is disclosed for selectively producing one or more aromatic compounds selected from benzene, toluene, para-xylene, meta-xylene, ortho-xylene, ethylbenzene and mixtures thereof from a feed containing C6–C20 hydrocarbons and/or C... | 05/30/2006 |
| 7029650 | Process for making a germanium-zeolite This invention relates to a process for making a germanium-zeolite. The zeolite is preferably a MFI-type structure, most preferably a ZSM-5 MFI zeolite. The germanium-zeolite is synthesized from an aqueous gel containing a silica source, a germanium source, an alumi... | 04/18/2006 |
| 6967182 | Catalysts consisting of metals on hydrotalcite-based carrier materials, and method for the preparation thereof The present invention relates to a catalyst comprising at least one metal loaded on a hydrotalcite-based carrier material which has the following formula in its uncalcined form: M2+aM3+b(An−)(OH)2a+3 | 11/22/2005 |
| 6946583 | Reforming process for manufacture of para-xylene A process for selectively producing para-xylene from a feedstock enriched in C8 isoalkanes and/or isoalkenes is disclosed. The feed is contacted with Group VIII metal loaded molecular sieve catalyst of low acidity under dehydrocyclization conditions where... | 09/20/2005 |
| 6831203 | Metal-containing zeolite catalyst, preparation thereof and use for hydrocarbon conversion There is provided a zeolite bound zeolite catalyst which does not contain significant amounts of non-zeolitic binder and a process for converting hydrocarbons utilizing the zeolite bound zeolite catalyst. The catalyst comprises first zeolite, crystals, a binder comp... | 12/14/2004 |
| 6797850 | Catalytic dehydrogenation processes and chromium catalysts for use therein A chromium catalyst is disclosed for use in dehydrogenation and dehydrocyclization processes. ... | 09/28/2004 |
| 6784333 | Catalyst for aromatization of alkanes, process of making and using thereof A catalyst, a process for making the catalyst and a process for using the catalyst in aromatization of alkanes to aromatics, specifically, aromatization of alkanes having two to six carbon atoms per molecule, such as propane, to aromatics, such as benzene, toluene a... | 08/31/2004 |
| 6653518 | Reforming process for manufacture of para-xylene A process for selectively producing para-xylene from a feedstock enriched in C8 isoalkanes and/or isoalkenes is disclosed. The feed is contacted with Group VIII metal loaded molecular sieve catalyst of low acidity under dehydrocyclization condi... | 11/25/2003 |
| 6605566 | Supported bimetallic catalyst with a strong interaction between a group VIII metal and tin, and its use in a catalytic reforming process A novel supported bimetallic catalyst comprises a group VIII metal such as platinum, and tin, at least a portion of which interacts strongly with the group VIII metal in the catalyst in the reduced state. In the partially oxidized state, the catalyst of t... | 08/12/2003 |
| 6593503 | Process for making aromatic hydrocarbons using an acid treated zeolite A catalyst composition and a process for converting a hydrocarbon stream such as, for example, gasoline to C6 to C8 aromatic hydrocarbons such as toluene and xylenes are disclosed. The catalyst composition includes an alumina, a sili... | 07/15/2003 |
| 6518470 | Halogen-containing catalyst and process for the preparation thereof The present invention is directed to a halogen-containing catalyst which contains one or more halogen components and in which the halogen amount distribution in the catalyst is uniform, and a process for preparing a halogen-containing catalyst which compr... | 02/11/2003 |
| 6406614 | Method for zeolite platinization A catalyst composition containing a zeolite and platinum, and a method of preparing such catalyst composition, are disclosed. The thus-obtained catalyst composition is employed in the conversion of a hydrocarbon to aromatics.... | 06/18/2002 |
| 6316675 | Process for the preparation of an olefin-substituted aromatic or heteroaromatic compound A process for the synthesis of olefins having aromatic substituents is described in which olefins are reacted with aryl halides in the presence of catalysts consisting of palladium compounds and tetraaryl phosphonium salts.... | 11/13/2001 |
| 6207605 | High silica content zeolite-based catalyst A high silica content zeolite-based catalyst for use in a reaction which uses a feedstock containing an aromatic hydrocarbon or which gives a product containing an aromatic hydrocarbon, which catalyst satisfies the following requirements (1), (2), (3) and... | 03/27/2001 |
| 6207042 | Reforming using a bound halided zeolite catalyst A catalytic reforming process comprising the catalytic conversion of hydrocarbons to aromatics, said process comprising treating a halided zeolite catalyst (hiz-cat) containing a Group VIII metal at commercial startup conditions and then reforming hydroca... | 03/27/2001 |
| 6198012 | Method for converting n-butane to butenes and BTX A catalyst composition suitable for the conversion of n-butane to butenes. The same catalyst composition that with chlorination is further suitable, when used in the conversion of n-butane, for the production of an increased amount of BTX (benzene-toluene... | 03/06/2001 |
| 6190539 | Reforming using a bound halided zeolite catalyst A catalytic reforming process comprising the catalytic conversion of hydrocarbons to aromatics, said process comprising treating a halided zeolite catalyst (hiz-cat) containing a Group VIII metal at commercial startup conditions and then reforming hydroca... | 02/20/2001 |
| 6177601 | Isomer-selective aromatization process and catalyst An aromatization process, selective for the dehydrocyclization of paraffins to aromatics, is effected using a large-pore molecular-sieve catalyst containing a uniformly distributed platinum-group metal component, and a tin component incorporated into the ... | 01/23/2001 |
| 6172273 | Method for converting hydrocarbons to aromatics using a hybrid catalyst system A composition is prepared by a method which comprises mixing a first solid material comprising a platinum group metal, a rhenium component, a porous carrier material and, optionally, a halogen component and a second solid material comprising silica and bi... | 01/09/2001 |
| 6153090 | Catalytic hydroreforming process A process for catalytic reforming and for producing aromatics is carried out in the presence of a catalyst comprising at least one support, at least one metal from group VIII of the periodic table and at least one additional element M selected from the gr... | 11/28/2000 |
| 6140546 | Hydrocarbon dehydrocyclization process In a process for the dehydrocyclization of a dehydrocyclizable hydrocarbon contained in a dehydrocyclization feed stream which comprises contacting said dehydrocyclizable hydrocarbon in a dehydrocyclization zone under dehydrocyclization conditions in the ... | 10/31/2000 |
| 6130362 | Method for preparing ethylbenzene from 4-vinylcyclohexene In the presence of a heterogeneous catalyst made of palladium supported on active carbon, ethylbenzene is prepared from 4-vinylcyclohexene through catalytic transfer hydrogenation in a hydrogen donor solvent with an oxidizing agent. Reaction temperature r... | 10/10/2000 |
| 6096936 | L-type zeolite catalyst There are herein disclosed an L-type zeolite catalyst which is obtainable by supporting a platinum component, one or more halogen components and one or more metal components selected from the group Ib of the periodic table on an L-type zeolite, the suppor... | 08/01/2000 |
| 6096193 | Sulfur-tolerant aromatization catalysts A catalytic material is provided which effectuates the aromatization, reformation, and dehydrogenation of aliphatic, cycloaliphatic, and mixtures of aliphatic and cycloaliphatic hydrocarbons. The catalyst comprises an L-zeolite associated with a Group VII... | 08/01/2000 |
