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| Number | Title | Issue Date |
| 4102822 | Hydrocarbon hydroconversion catalyst and the method for its preparation A catalyst composition, a method for its preparation and a hydrotreating process using same. The catalyst comprises a rigidly interconnected pack of irregularly shaped particles having an average diameter below 0.15 mm. Among the particles and throughout ... | 07/25/1978 |
| 4093559 | Process for the preparation of a palladium catalyst A process for the preparation of a palladium catalyst for the oxacylation of olefins in the gaseous phase, which comprises impregnating a catalyst carrier with a solution of a palladium compound drying the catalyst at a temperature of below 90° C until a... | 06/06/1978 |
| 4087384 | Method of catalyst preparation for use in suppressing hydrocarbon and carbon monoxide emission from internal combustion engines A method of lowering undesirable vehicle exhaust emissions includes preparing a catalyst for use in the exhaust stream of the vehicle. The method includes impregnating one group of alumina substrates with platinum, impregnating another group of alumina su... | 05/02/1978 |
| 4076792 | Catalyst systems for the reduction of the oxides of nitrogen Devices and processes are disclosed for the treatment of waste gases, particularly automotive exhaust gases, to remove the oxides of nitrogen therefrom. Mixed noble metal catalysts consisting essentially of platinum or palladium and at least one other nob... | 02/28/1978 |
| 4058485 | Porous metal-alumina composite A porous composite structure comprising a sintered mixture of metal particles and alumina particles, and a method for producing this composite. The composite is useful as a catalyst support, particularly in apparatus designed to reduce pollutant emissions... | 11/15/1977 |
| 4056575 | Chemical process making aromatic hydrocarbons over gallium catalyst This invention relates to a process for aromatizing unsaturated hydrocarbons in the presence of a supported gallium catalyst. Xylenes may be prepared from C4 feedstock by this route.... | 11/01/1977 |
| 4051073 | Pellet-type oxidation catalyst This invention relates to oxidation catalysts wherein the catalytically active metallic material has an impregnation depth of at least 90 microns up to about 250 microns on the porous support which has a surface area of at least 100 m2 /g. up t... | 09/27/1977 |
| 4049576 | Platinum-palladium catalyst for selective hydrogenation of aromatics and olefins in hydrocarbon fractions Hydrocarbon fractions boiling between 180° and 600° F. and containing aromatics, olefins, and sulfur and nitrogen compounds are hydrogenated with a platinum-palladium catalyst to reduce the concentration of aromatics and olefins. The catalyst is prepare... | 09/20/1977 |
| 4038175 | Supported metal catalyst, methods of making same, and processing using same There is described a catalyst composition suitable in the hydrogenation of, for example, dripolenes, which consists essentially of palladium, or platinum metal dispersed on e.g., an alpha-alumina support, said support possessing the following characterist... | 07/26/1977 |
| 4028275 | Process for preparing catalytic materials for purifying exhaust gas and catalytic materials prepared thereby A catalyst for purifying exhaust gas may be prepared by a process comprising impregnating a ceramic carrier with an impregnating liquid containing at least one Platinum Group metal compound, at least one organic nitrogen compound and/or at least one organ... | 06/07/1977 |
| 4014783 | Hydroprocessing of hydrocarbons A process for hydrotreating (hydroprocessing) hydrocarbons and mixtures of hydrocarbons utilizing a catalytic composite of a porous carrier material, a platinum or palladium component, a rhodium component and a tin component, in which process there is eff... | 03/29/1977 |
| 4008182 | Low density refractory inorganic oxide particles having high micropore volume Refractory inorganic oxide particles characterized by low bulk density in combination with high micropore volume are disclosed. The particles, especially the low bulk density - high micropore volume alumina particles, are useful as a support or carrier ma... | 02/15/1977 |
| 4003851 | Stable alumina catalyst support, process therefor, and promoted support An alumina catalyst support substantially free of thermal skrinkage and having desirable physical properties is disclosed which is obtained by heating an alumina extrudate in a zone heated by direct fire to 1800°-2600° F. with combustion gases therein u... | 01/18/1977 |
| 3993554 | Method of producing n-paraffin oximes A process for converting mixtures of C6 to C30 n-paraffin and n-paraffin by-products to substantially pure n-paraffin which comprises catalytically hydrogenating the mixture at a temperature of from about 600° to 750° F. in the pre... | 11/23/1976 |
| 3986984 | Method of catalyst manufacture A method of catalyst manufacture. A calcined tin-containing refractory inorganic oxide support or carrier material is treated in contact with an aqueous solution of a basic reagent and thereafter impregnated with a Group VIII metal component to yield a ca... | 10/19/1976 |
| 3977999 | Alumina compositions and methods for making and using same A composition of matter useful, for example, as a catalyst component, comprising macrosized particles containing a mixture of two distinct phases, the phases being 1) calcined discrete entities comprising first alumina a major portion of which have a mini... | 08/31/1976 |
| 3974097 | Catalysts for the hydro-treatment of hydrocarbons and process of preparing such catalysts A catalyst useful for the hydro-treatment of hydrocarbons comprising, on a refractory inorganic oxide support, the following metals: A. from 0.02 to 2% of at least one platinum metal; B. from 0.02 to 2% of at least one metal belonging to the group consisting o... | 08/10/1976 |
| 3962139 | Catalyst preparation Powdery alloys of two or more metals, as well as of alloys distributed in finely divided state over a carrier material, e.g., catalysts consisting of an alloy of two or more metals, are obtained by adding one of the metals as a powder or in finely divided... | 06/08/1976 |
| 3953368 | Polymetallic cluster compositions useful as hydrocarbon conversion catalysts Compositions comprising iridium and at least one additional metal, preferably platinum, are disclosed in which the iridium and the additional metal or metals are present on a refractory support as highly dispersed polymetallic clusters. The metallic atoms... | 04/27/1976 |
| 3953369 | Method for the production of a platinum catalyst used for purification of exhaust and waste gases A method for the production of a platinum catalyst used for purification of exhaust and waste gases which comprises supporting platinum either alone or in combination of other noble metals on to a porous inorganic refractory support using an aqueous mediu... | 04/27/1976 |
| 3941870 | Process for the production of uranium hexafluoride The production of UF6 in which UF4 is reacted with air or oxygen in the presence of a catalyst at 500° to 700°C. The solid byproduct of this reaction is reduced with hydrogen in the presence of a catalyst at 400° to 600°C. Fresh ... | 03/02/1976 |
| 3940348 | Reaction catalyst for the elimination of oxyhydrogen gas in lead-acid storage batteries A reaction catalyst for the recombination of the oxyhydrogen gas produced by lead-acid storage batteries into water in a controlled, exothermic reaction, where the catalyst element is a solid rod element with a central heat conducting core, the catalyst r... | 02/24/1976 |
| 3939220 | Dehydrogenation method and multimetallic catalytic composite for use therein Dehydrogenatable hydrocarbons are dehydrogenated by contacting them at dehydrogenation conditions with a catalytic composite, comprising a combination of catalytically effective amounts of a platinum or palladium component, an iridium component, a rhenium... | 02/17/1976 |
| 3932514 | Catalyst for the preparation of cyclohexanone from phenol and process therefor A palladium catalyst on an aluminum spinel carrier is used to selectively hydrogenate phenol to cyclohexanone.... | 01/13/1976 |
| 3931050 | Catalyst for purifying exhaust gas from vehicles A catalyst for purifying exhaust gas from vehicles comprises a monolithic carrier having a plurality of exhaust gas passages penetrating through the carrier, a layer of active refractory metallic oxide such as .gamma.-alumina, containing 1 to 20% by weigh... | 01/06/1976 |
| 3931054 | Method of catalyst manufacture A method of impregnating a catalytic component as a subsurface layer on a carrier material. The carrier material is immersed in an impregnating solution containing a catalytic component and a dibasic carboxylic acid, with a sulfur-containing carboxylic ac... | 01/06/1976 |
