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| Number | Title | Issue Date |
| 5861536 | Oxidative ammination of benzene to aniline using molecular oxygen as the terminal oxidant The present invention comprises a process for catalytic oxidative ammination of aromatic hydrocarbons which comprising contacting aromatic feedstock with oxidant, such as molecular oxygen, under suitable reaction conditions, in the presence of a catalyst ... | 01/19/1999 |
| 5817881 | Tetraalykylammonium polyoxoanionic oxidation catalysts Alkanes are catalytically oxidized in air or oxygen using iron-substituted polyoxoanions (POAs) of the formula: He-z (n-C4 H9)4 N!z (XM11 M'O39)-e The M' (e.g., iron(III)/iron... | 10/06/1998 |
| 5780383 | Solid superacid catalyst comprising group VII metal and having Ho less than -18 The invention is a solid catalyst having acid strength Ho less than -18. Such catalysts are characterized by the ability to react with very weak bases, such as butane, at relatively low temperatures, for example temperatures in the range from 2... | 07/14/1998 |
| 5770728 | Alkane oxidation with porphyrins and metal complexes thereof having haloalkyl side chains Transition metal complexes of meso-haloalkylporphyrins, wherein the haloalkyl groups contain 2 to 8 carbon atoms have been found to be highly effective catalysts for oxidation of alkanes and for the decomposition of hydroperoxides.... | 06/23/1998 |
| 5767272 | Method of preparing meso-haloalkylporphyrins Transition metal complexes of meso-haloalkylporphyrins, wherein the haloalkyl groups contain 2 to 8 carbon atoms have been found to be highly effective catalysts for oxidation of alkanes and for the decomposition of hydroperoxides. Also disclosed is a pro... | 06/16/1998 |
| 5733518 | Process and catalyst for dehydrogenation of organic compounds The invention comprises a process for selectively oxidizing hydrogen in a mixture with other gaseous materials by contacting the hydrogen containing gas under oxidation conditions with a catalyst comprising a phosphate of a metal wherein the metal is sele... | 03/31/1998 |
| 5723677 | Method for hydroperoxide decomposition using novel porphyrins synthesized from dipyrromethanes and aldehydes The invention comprises a method for the oxidation of alkanes to alcohols and for decomposition of hydroperoxides to alcohols utilizing new compositions of matter, which are metal complexes of porphyrins. Preferred complexes have hydrogen, haloalkyl or ha... | 03/03/1998 |
| 5723697 | Catalytic oxidation of light alkanes in presence of a base The presence of a base in the reaction mixture in a metal-ligand catalyzed partial oxidation of alkanes results in sustained catalyst activity, and in greater percent conversion as compared with oxidation in the absence of base, while maintaining satisfac... | 03/03/1998 |
| 5705685 | Conversion of alkanes to unsaturated carboxylic acids Alkanes are converted to unsaturated carboxylic acids by contacting an alkane with an oxidizing agent and a heteropolyacid or polyoxoanion comprising (1) at least 9 atoms of a first framework metal or metals comprising molybdenum, tungsten or vanadium or ... | 01/06/1998 |
| 5672778 | Process for increased yields of oxygenated products in two-step oxidation of hydrocarbons The invention comprises a method for the catalytic conversion of alkanes and alkylhydroperoxides to oxygenates, particularly alcohols, comprising the oxidation of alkanes to yield alkylhydroperoxides, alcohols, other reaction products and unreacted alkane... | 09/30/1997 |
| 5663328 | Haloporphyrins and their preparation and use as catalysts The invention provides novel catalyst compositions, useful in the oxidation of hydrocarbons with air or oxygen to form hydroxy-group containing compounds and in the decomposition of hydroperoxides to form hydroxy-group containing compounds. The catalysts ... | 09/02/1997 |
| 5659029 | Preparation of porphyrins and their metal complexes A hydroxyl-containing pyrrolic compound having a hydroxyl group or a hydroxyl-containing group in the 2-position, optionally substituted in the beta positions, is condensed in an acidified two immiscible phase solvent system to produce excellent yields of... | 08/19/1997 |
| 5648590 | Liquid phase isomerization of alkanes Acyclic hydrocarbons having 4 to 7 carbon atoms per molecule are isomerized in the liquid phase by contact with a solid superacid catalyst comprising sulfated oxide or hydroxide of a metal selected from the group consisting of Group III and Group IV metal... | 07/15/1997 |
| 5629257 | Solid superacid catalysts comprising platinum metal A sulfated solid catalyst is provided which comprises (1) oxide or hydroxide of Group III or Group IV element, e.g. zirconium, and (2) a first metal comprising a metal or combination of metals selected from the group consisting of platinum, palladium, nic... | 05/13/1997 |
| 5608054 | Porphyrins and metal complexes thereof having haloalkyl side chains Transition metal complexes of meso-haloalkylporphyrins, wherein the haloalkyl groups contain 2 to 8 carbon atoms have been found to be highly effective catalysts for oxidation of alkanes and for the decomposition of hydroperoxides.... | 03/04/1997 |
| 5571908 | Porphyrins The invention comprises new compositions of matter, which are iron, manganese, cobalt or ruthenium complexes of porphyrins having hydrogen, haloalkyl or haloaryl groups in meso positions, two of the opposed meso atoms or groups being hydrogen or haloaryl,... | 11/05/1996 |
| 5550301 | Dried catalytic systems for decomposition of organic hydroperoxides Organic hydroperoxides are decomposed by drying a reaction mixture containing the organic hydroperoxide and an organic solvent such that said dried reaction mixture comprises approximately 1 weight percent or less of water and contacting the dried reactio... | 08/27/1996 |
| 5540833 | Sulfur tolerant bimetallic zeolitic reforming catalysts New compositions of matter comprise a metal from the group consisting of platinum, rhodium and palladium, a metal from the first row of Group VIII of the Periodic Table and a nonacidic L-zeolite. A preferred composition is Pt--Ni/KL-zeolite. Such catalyst... | 07/30/1996 |
| 5516964 | Hydrocarbon isomerization using solid superacid catalysts comprising platinum metal An isomerization process is provided which process utilizes a sulfated solid catalyst comprising (1) oxide or hydroxide of Group III or Group IV element, e.g. zirconium, and (2) a first metal comprising a metal or combination of metals selected from the g... | 05/14/1996 |
| 5510558 | Oxidative dehydrogenation of hydrocarbons with active carbon catalyst Oxidative dehydrogenation of alkanes and alkylaromatic hydrocarbons is achieved by contact with an active carbon catalyst. In various aspects of the invention, the oxidative dehydrogenation is performed at a pressure above about 100 psia, and/or at a temp... | 04/23/1996 |
| 5502211 | Substituted dipyrromethanes and their preparation New chemical compounds, bis(pyrrol-2-yl)halocarbylmethanes, also known as meso-halocarbyl dipyrromethanes, are made by recting pyrrole in either of two reaction schemes. Once such scheme converts pyrrole through an intermediate, a halocarbyl carbonyl pyrr... | 03/26/1996 |
| 5494569 | Hydrocracking using solid superacid catalysts comprising platinum metal A hydrocracking process is provided which process utilizes a sulfated solid catalyst comprising (1) oxide or hydroxide of Group III or Group IV element, e.g. zirconium, and (2) a first metal comprising a metal or combination of metals selected from the gr... | 02/27/1996 |
| 5494571 | Naphtha upgrading using solid superacid catalysts comprising platinum metal A naphtha upgrading process is provided which process utilizes a sulfated solid catalyst comprising (1) oxide or hydroxide of Group III or Group IV element, e.g. zirconium, and (2) a first metal comprising a metal or combination of metals selected from th... | 02/27/1996 |
| 5493067 | Solid superacid alkylation catalyst compositions and alkylation method using the same Isoparaffins and olefins are alkylated by contact with a solid superacid such as sulfated zirconia optionally containing added metals, and containing added heteropolyacids (HPA's) or polyoxoanions (POA's). The presence of HPA's or POA's in the solid super... | 02/20/1996 |
| 5491278 | Alkylation process using solid superacid catalyst liquid phase Isoparaffins and olefins are alkylated in the liquid phase by contact with a solid superacid such as sulfated zirconia containing heteropolyacids or polyoxoanions. High octane number blending components for motor fuel and other valuable products are obtai... | 02/13/1996 |
| 5489716 | Reactions catalyzed by haloporphyrins The invention provides novel methods for the oxidation of hydrocarbons with oxygen-containing gas to form hydroxy-group containing compounds and for the decomposition of hydroperoxides to form hydroxygroup containing compounds. The catalysts used in the m... | 02/06/1996 |
| 5489722 | Dehydrogenation processes using catalysts comprising catalytic metal on a nonacidic support Organic compounds are dehydrogenated by contact with a catalyst prepared by oxidizing and then sulfiding a composition comprising Group VIIIA (first or second row) catalytic metal on a nonacidic porous support, for example alumina, to produce compositions... | 02/06/1996 |
| 5480986 | Metal complexes of substituted Gable porphyrins as oxidation catalysts Transition metal complexes of Gable porphyrins having two porphyrin rings connected through a linking group, and having on the porphyrin rings electron-withdrawing groups, such as halogen, nitro or cyano. These complexes are useful as catalysts for the ox... | 01/02/1996 |
| 5476981 | Oxidative dehydrogenation of hydrocarbons with solid superacid catalyst Solid superacid catalyst, for example sulfated zirconia, is used in the oxidative dehydrogenation of saturated or partially saturated hydrocarbons, for example the conversion of isobutane to isobutylene in the presence of an oxygen-containing oxidizing ag... | 12/19/1995 |
| 5468710 | Compositions comprising sulfided nickel and alumina useful as dehydrogenation catalysts Compositions of matter comprising sulfided nickel and nonacidic alumina, and having certain ratios of specific peak areas for nickel, for aluminum, for sulfide ion and/or for cesium, as determined by X-ray photoelectron spectroscopy, are useful as catalys... | 11/21/1995 |
| 5462904 | Process of making dehydrogenation catalysts by oxidizing and sulfiding catalytic metal on a nonacidic support The process of the invention comprises oxidizing and then sulfiding materials comprising Group VIA or Group VIIIA (first or second row) catalytic metal on a nonacidic porous support, to produce compositions which have good dispersion of a catalytically ac... | 10/31/1995 |
| 5439859 | Process and catalyst for dehydrogenation of organic compounds Alkanes are dehydrogenated by passage through alternating dehydrogenation zones and selective oxidation zone(s), in which latter zone(s) hydrogen produced in the preceding endothermic dehydrogenation reaction is selectively oxidized to generate heat for t... | 08/08/1995 |
| 5414157 | Catalytic oxidation of alkanes Process and apparatus are provided for oxidation of oxidation of organic compounds in which a reaction zone is provided, containing an open space and a bed of solid granular catalyst, an organic feedstock and oxygen are passed in gas phase through the ope... | 05/09/1995 |
| 5395988 | Metal-ligand catalyzed decomposition of organic hydroperoxides Organic hydroperoxides are decomposed by drying a reaction mixture containing the organic hydroperoxide and an organic solvent and contacting the dried reaction mixture with a metal organic ligand catalyst under hydroperoxide decomposition conditions. An ... | 03/07/1995 |
| 5386074 | Catalytic dehydrogenation of alkanes Barium peroxide in which has been incorporated a transition metal compound is used as a catalyst for the oxidative dehydrogenation of organic compounds in the presence of terminal oxidants.... | 01/31/1995 |
| 5382662 | Cyano- and polycyanometallo-porphyrins as catalysts for alkane oxidation New compositions of matter comprising cyano-substituted metal complexes of porphyrins are catalysts for the oxidation of alkanes. The metal is iron, chromium, manganese, ruthenium, copper or cobalt. The porphyrin ring has cyano groups attached thereto in ... | 01/17/1995 |
| 5362694 | Sulfur dioxide regeneration of superacid catalyst A process for regeneration of spent sulfated and calcined solid superacid catalyst is disclosed. Said process comprises heating said catalyst to a temperature of approximately 450° C. and contacting said catalyst with a gas stream comprising oxygen or ai... | 11/08/1994 |
| 5354857 | Metal phthalocyanine catalysts As a new composition of matter, alkali metal or ammonium or tetraalkylammonium diazidoperfluorophthalocyanatoferrate. Other embodiments of the invention comprise compositions wherein the metal of the coordination complex is cobalt, manganese and chromium.... | 10/11/1994 |
| 5345008 | Decomposition of organic hydroperoxides with nitrated porphyrin complexes Hydroperoxides are decomposed by contact with metalloporphyrin coordination complex catalysts in which hydrogen in the porphyrin molecule has been substituted with at least one nitro group and may be further substituted with other electron-withdrawing ele... | 09/06/1994 |
| 5345011 | New manganese catalyst for light alkane oxidation Aluminophosphates containing manganese in the structural framework are employed for the oxidation of alkanes, for example the vapor phase oxidation of methane to methanol.... | 09/06/1994 |
