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| Number | Title | Issue Date |
| 4185040 | Alkylation of aromatic hydrocarbons Highly stable and active catalysts are provided for the alkylation of aromatic hydrocarbons with C2 -C4 olefins. The catalysts are extruded composites of an acidic, crystalline aluminosilicate zeolite, e.g. Y zeolite, and a porous mi... | 01/22/1980 |
| 4179358 | Fluid cracking catalyst process using a zeolite dispersed in a magnesia-alumina-aluminum phosphate matrix A process for cracking gasoline feedstock with superior selectivity to gasoline production and greater metals tolerance wherein said gasoline feedstock is brought into contact with a fluid cracking catalyst comprising a zeolite dispersed in a magnesia-alu... | 12/18/1979 |
| 4166806 | Cracking catalyst passivated with a crude antimony phosphorodithioate A hydrocarbon cracking catalyst is treated with a crude antimony tris-(O,O-dihydrocarbyl phosphorodithioate) to passivate thereon contaminating metals, e.g., vanadium, iron and/or nickel. Used or unused catalyst can be treated.... | 09/04/1979 |
| 4152363 | Vapor phase isomerization of methyl-substituted aromatic hydrocarbons improved by using highly diluted zeolite catalyst An improved vapor phase process is provided for isomerization of monocyclic methyl-substituted aromatic hydrocarbons. The process involves contacting said aromatic hydrocarbons with a catalyst material containing a crystalline aluminosilicate zeolite char... | 05/01/1979 |
| 4152298 | Catalyst for removing sulfur from a gas Sulfur oxides are removed from a gas and the sulfur is converted to hydrogen sulfide by the steps of: (1) reacting sulfur oxides in the gas with alumina to form a solid sulfur-containing compound and remove sulfur oxides from the gas; and (2) contacting t... | 05/01/1979 |
| 4151119 | Hydrocarbon conversion catalyst A hydrocarbon conversion catalyst suitable for the conversion of heavy hydrocarbon oils containing large amounts of metallic contaminants, such as petroleum residua, comprises an inorganic oxide gel matrix comprising a major amount of silica and minor amo... | 04/24/1979 |
| 4147613 | Hydrocarbon conversion process utilizing a catalyst comprising a zeolite, a zirconia-containing matrix and an adsorbent A hydrocarbon conversion process suitable for the conversion of heavy hydrocarbon oils containing large amounts of metallic contaminants, such as petroleum residua, utilizes a catalyst comprising an inroganic oxide gel matrix comprising a major amount of ... | 04/03/1979 |
| 4144196 | Adsorbent for use in double glazed windows An improvement in sealed insulating glass having an adsorbent disposed about all or part of the interior periphery of the glass is described. The improvement lies in employing a molecular sieve zeolite having an average pore diameter that permits adsorpti... | 03/13/1979 |
| 4134856 | Catalyst for hydro-refining hydrocarbon oils A hydro-refining catalyst comprising at least one hydrogenation metal component supported on an alumina or alumina-containing carrier containing from about 5 to about 25 wt. % silica, said catalyst having a specific surface area in the range of from about... | 01/16/1979 |
| 4120825 | Hydrogenative conversion catalyst Hydrocarbon conversion methods employing unique catalyst compositions exhibiting improved conversion characteristics particularly as regards denitrogenation and/or cracking selectivity to predetermined boiling range products involve the use of a catalytic... | 10/17/1978 |
| 4115249 | Process for removing sulfur from a gas Sulfur oxides are removed from flue gas in a catalyst regenerator in a fluid catalyst cracking system while liquid-hydrocarbon product yield from the system is maintained at a high level by heating a particulate silica-containing cracking catalyst to 800-... | 09/19/1978 |
| 4113659 | Catalytic composite and method of manufacture A catalytic composite of improved activity and a method of manufacture is disclosed. The catalytic composite is particularly effective with respect to the transalkylation of toluene. The catalytic composite comprises a zeolite of the mordenite crystal str... | 09/12/1978 |
| 4111845 | Cracking catalyst modified by antimony thiophosphate Prevention of detrimental effect of metals such as nickel, vanadium and iron on the activity of a cracking catalyst when used in a cracking process having essentially no hydrogen added thereto is achieved by using in the cracking process novel cracking ca... | 09/05/1978 |
| 4107086 | Catalytic composite and method of manufacture A catalytic composite of improved activity and a method of manufacture is disclosed. The catalytic composite is particularly effective with respect to the transalkylation of toluene. The catalytic composite comprises a zeolite of the mordenite crystal str... | 08/15/1978 |
| 4083807 | Method for preparing crystalline aluminosilicate cracking catalysts An improved catalytic cracking catalyst is obtained by a method which comprises incorporating into a crystalline aluminosilicate catalyst by ion exchange a substantial concentration of a metal selected from the group consisting of antimony, bismuth and ma... | 04/11/1978 |
| 4048111 | Method for manufacturing an adsorbent useful for olefin separation A method for the production of an adsorbent, having increased capacity for olefins and decreased catalytic activity for polymerization and isomerization, useful in the separation of olefins from a hydrocarbon mixture comprising olefins and paraffins. The ... | 09/13/1977 |
| 4046713 | Method of manufacturing an extruded catalyst composition A method of preparing an extruded catalyst composition. An acidic alumina hydrosol is admixed with a dry mixture consisting essentially of a finely divided alumina and a finely divided crystalline aluminosilicate. The resulting mixture is extruded, dried ... | 09/06/1977 |
| 4041089 | Process for the isomerization of dimethylnaphthalenes using a mordenite/alumina catalyst A process for the isomerization of 1,5 and 1,6-dimethylnaphthalenes to a product including 2,6-dimethylnaphthalene which comprises passing a feed stream containing the 1,5 and 1,6 isomers over a catalyst at isomerization reaction conditions which catalyst... | 08/09/1977 |
| 4039479 | Method of catalyst manufacture A method of manufacture providing a catalytic composite of improved activity is disclosed. A zeolite of the mordenite crystal structure, with a sodium content of less than about 5 wt. % as Na2 O, is subjected to an aqueous ammoniacal treatment ... | 08/02/1977 |
| 4036739 | Catalytic cracking process using ammonia-stable zeolite catalyst Highly active, hydrothermally stable and ammonia-stable Y zeolite compositions are disclosed, which compositions are useful as adsorbents, hydrocarbon conversion catalysts, and as acidic supports for catalytic metals. The stabilized Y zeolite composition ... | 07/19/1977 |
| 4002578 | Catalyst activation process A method is disclosed for increasing the acid catalytic activity of a crystalline zeolitic aluminosilicate having a Group IIA cation as a substantial portion of its cations, having at least 6-Angstrom-sized pores and being substantially free of hydrogen c... | 01/11/1977 |
| 3980586 | Modified solid catalyst materials Refractory metal oxide solid materials, characterized by the presence of surface hydroxyl groups, which have undergone modification by being subjected to the sequential steps of (1) silylating, (2) calcining and (3) steaming are provided. Said silylating ... | 09/14/1976 |
| 3969276 | Method of manufacturing a zeolitic adsorbent A method of manufacturing an adsorbent comprising X or Y zeolite containing one or more selected cations at the exchangeable cationic sites. The method basically comprises the steps of: contacting a base material comprisng X or Y zeolite with an aqueous s... | 07/13/1976 |
| 3963644 | Conversion catalysts Hydrocracking catalysts are disclosed consisting essentially of a physical, particle-form mixture of (1) a crystalline alumino-silicate component having a sodium content of less than 4 percent by weight, and (2) a hydrogenation component comprising a pred... | 06/15/1976 |
| 3962364 | Alkylation in presence of phosphorus-modified crystalline luminosilicate catalyst Process for the alkylation of aromatic hydrocarbons by contacting same with an olefin alkylating agent in a reaction zone maintained under conditions such that said alkylation is accomplished in the vapor phase and in the presence of a catalyst comprising... | 06/08/1976 |
| 3960760 | Sewer waste water treating agent produced from waste cracking catalyst A sewer waste-water treating agent of superior quality produced by alkali treatment of waste catalyst grains arising from the fluid-bed type catalytic cracking process, said sewer waste-water treating agent being capable of facilitating solid-liquid separ... | 06/01/1976 |
| 3954670 | Boria-alumina catalyst base A catalyst support comprised of boria and alumina is prepared by the hydrolysis of a mixture of boron alkoxide and aluminum alkoxide. The boria-alumina composition prepared in accordance with the invention can be readily formed for use as a support for ca... | 05/04/1976 |
| 3945943 | Zeolite containing compositions, catalysts and methods of making Improved combinations of zeolites and refractory inorganic oxides are formed from mixtures of the ammonium, stabilized hydrogen forms of crystalline zeolitic aluminosilicates and amorphous refractory inorganic oxides upon calcination under substantially d... | 03/23/1976 |
| 3944482 | Process for the cracking of high metals content feedstocks The cracking of high metals content feedstocks is achieved in the presence of a catalyst comprising from 1 to 40 weight percent of a zeolite having cracking activity dispersed in a large pored matrix.... | 03/16/1976 |
