| Patent Number |
Title Of Patent |
Date Issued |
| 4876228 |
Zeolite modifications |
October 24, 1989 |
| A method is disclosed for modifying an aluminosilicate-containing inorganic solid having a predetermined ion exchange capacity and containing an extractable silica by contacting, in the absence of added organic nitrogen or organic phosphorous compound and added activating metal oxide, th |
| 4780194 |
Organic compound conversion with ammonium hydroxide and alkali metal aluminate treated zeolite |
October 25, 1988 |
| This invention relates to acid catalysis, e.g. cracking, of organic compound feedstock, e.g. hydrocarbons, over catalyst material treated in a special way for increasing the acid catalytic activity thereof. In particular, a novel catalyst activation process is followed to enhance the |
| 4711970 |
Catalytic conversion |
December 8, 1987 |
| A method for increasing the total amount of lattice metal in the framework of a particular porous inorganic crystalline composition, its conversion to hydrogen or hydronium form and use thereof as a catalyst component having enhanced catalytic activity for conversion of paraffins and/or |
| 4690903 |
Process for preparing organic fuels and chemicals from biomass |
September 1, 1987 |
| An ethanol fermentation process in which an aqueous solution of fermentable sugar is converted by an ethanol-producing microorganism such as a yeast to a dilute aqueous solution of ethanol with the ethanol being present in the solution at a concentration which does not exceed a predeterm |
| 4678763 |
Method for reclaiming heat-damaged catalysts |
July 7, 1987 |
| Heat-damaged ZSM-5 type catalysts are reclaimed by hydrothermal treatment with an aqueous medium followed by base exchange with an ammonium salt. |
| 4670412 |
Modification of crystalline microporous zeolites |
June 2, 1987 |
| Natural and synthetic micorporous crystalline minerals that have a robust three-dimensional framework are modified by treatment with a molten salt that contains a component that reacts with the framework. Highly siliceous ZSM-5 and some aluminum phosphate compositions are catalytically a |
| 4665255 |
Catalytic conversion of aromatic compounds |
May 12, 1987 |
| Feedstock comprising aromatic compounds is converted to product comprising aromatic compounds which differs from the feedstock over a catalyst which comprises a particular crystalline material which has been treated to increase the total amount of lattice metal in its framework. Examples |
| 4665248 |
Zeolite modification and its use in conversion of alcohols and ethers to hydrocarbons |
May 12, 1987 |
| The ion-exchange capacity and acid catalytic activity of a ZSM-5 type zeolite are increased by treatment of a physical mixture of the zeolite and an inorganic oxide with water in the presence of an alkali metal cation.Specifically, the catalyst is prepared by contacting a mixture of a |
| 4645864 |
Catalytic conversion |
February 24, 1987 |
| A method for increasing the total amount of lattice metal in the framework of a particular porous inorganic crystalline composition, its conversion to hydrogen or hydronium form and use thereof as a catalyst component having enhanced catalytic activity for conversion of oxygenates to |
| 4638105 |
Acid-catalyzed xylene isomerization |
January 20, 1987 |
| Feedstock comprising xylene isomers is converted to isomerization product by the present process over catalyst prepared by a method for substituting aluminum or gallium for boron or iron contained in the framework of a high silica content zeolite. |
| 4624774 |
Catalytic cracking of using catalyst produced by novel process hydrocarbons |
November 25, 1986 |
| A method for increasing the total amount of lattice metal in the framework of a particular porous inorganic crystalline composition, its conversion to hydrogen or hydronium form and use thereof as a catalyst component having enhanced catalyatic activity is provided. |
| 4620921 |
Acid-catalyzed hydrocarbon conversion process |
November 4, 1986 |
| Substitution of aluminum or gallium for boron or iron contained in the framework of a high silica content zeolite is effected by treating the zeolite in liquid water in the presence of a compound of aluminum or gallium. Catalyst comprising the treated zeolite is used for conducting a |
| 4620054 |
Acid-catalyzed xylene isomerization |
October 28, 1986 |
| This invention relates to acid catalysis of organic compound feedstock, e.g. isomerization of xylenes, over catalyst material treated in a special way for increasing the acid catalytic activity thereof. In particular, a novel catalyst activation process is followed to enhance the alpha v |
| 4607130 |
Acid-catalyzed organic compound conversion |
August 19, 1986 |
| This invention relates to acid catalysis of organic compound feedstock, e.g. conversion of olefins and/or paraffins to higher hydrocarbons, over catalyst material treated in a special way for increasing the acid catalytic activity thereof. In particular, a novel catalyst activation p |
| 4605805 |
Acid-catalyzed organic compound conversion |
August 12, 1986 |
| Substitution of aluminum or gallium for boron or iron contained in the framework of a high silica content zeolite is effected by treating the zeolite in liquid water in the presence of a compound of aluminum or gallium. Catalyst comprising the treated zeolite is used for conducting a |
| 4605804 |
Acid-catalyzed organic compound conversion |
August 12, 1986 |
| Substitution of aluminum or gallium for boron or iron contained in the framework of a high silica content zeolite is effected by treating the zeolite in liquid water in the presence of a compound of aluminum or gallium. Catalyst comprising the treated zeolite is used for conducting a |
| 4605803 |
Acid-catalyzed organic compound conversion |
August 12, 1986 |
| This invention relates to acid catalysis of organic compound feedstock, e.g. conversion of oxygenates to hydrocarbons, over catalyst material treated in a special way for increasing the acid catalytic activity thereof. In particular, a novel catalyst activation process is followed to |
| 4605637 |
Hydrothermal activation of acid zeolites with aluminum phosphates |
August 12, 1986 |
| There is provided a process for activating a zeolite with an aluminum phosphate material. The process comprises hydrothermally treating an intimate mixture of the zeolite and an effective amount of aluminum phosphate activating agent in contact with an aqueous liquid phase under reac |
| 4596704 |
Activation of zeolites |
June 24, 1986 |
| A method for enhancing the activity of a synthetic crystalline zeolite, including a zeolite having a silica-to-alumina ratio greater than 500, is disclosed which involves compositing the zeolite with an alumina support matrix and reacting the composite with a concentrated aqueous solutio |
| 4590050 |
Synthesis of crystalline aluminum phosphates with a urea templating agent |
May 20, 1986 |
| There is provided a method for preparing a microporous crystalline aluminum phosphate with a urea templating agent. Also provided are microporous, crystalline aluminum phosphates having characteristic structures. |
| 4579987 |
Catalysis over activated high silica zeolites |
April 1, 1986 |
| A process is provided for converting feedstock comprising paraffins, olefins or mixtures thereof to product comprising C.sub.5 + hydrocarbons over a catalyst comprising a high silica crystalline zeolite which has been treated by steps of calcining the crystalline material, contacting |
| 4577048 |
Catalysis over activated high silica zeolites |
March 18, 1986 |
| A process is provided for converting feedstock aromatic compounds by alkylation, transalkylation, disproportionation and/or isomerization over a catalyst comprising a high silica crystalline zeolite which has been treated by steps of calcining the zeolite, contacting the calcined zeolite |
| 4576805 |
Increasing lattice metal content of porous inorganic crystalline compositions |
March 18, 1986 |
| A method for increasing the total amount of lattice metal in the framework of a particular porous inorganic crystalline composition, its conversion to hydrogen or hydronium form and use thereof as a catalyst component having enhanced catalytic activity is provided. |
| 4564719 |
Catalysts over AlF.sub.3 activated high silica zeolites |
January 14, 1986 |
| A process is provided for converting feedstock comprising oxygenates to product comprising hydrocarbons over a catalyst comprising a high silica crystalline zeolite which has been treated by steps of calcining the crystalline material, contacting the calcined material with solid aluminum |
| 4559315 |
Zeolite modification |
December 17, 1985 |
| The ion-exchange capacity and acid catalytic activity of a ZSM-5 type zeolite are increased by treatment of a physical mixture of the zeolite and an inorganic oxide with water in the presence of an alkali metal cation. |
| 4559131 |
Reactivation of steam-deactivated catalysts |
December 17, 1985 |
| A process is provided for using a reactivated catalyst composition comprising a crystalline zeolite material having a silicon/aluminum atomic ratio of at least about 3.5, said catalyst composition having been deactivated by contact with steam. The reactivation method involves the nec |
| 4550092 |
Activity enhancement of high silica zeolites |
October 29, 1985 |
| A crystalline high silica-containing zeolite such as ZSM-5 is treated with an ammoniacal alkali metal aluminate so as to enhance the catalytic activity thereof. |
| 4544783 |
Conversion of oxygenates to hydrocarbons |
October 1, 1985 |
| A process is provided for converting feedstock comprising oxygenates to product comprising hydrocarbons over a catalyst comprising a high silica crystalline zeolite which has been treated sequentially by contact with a dilute hydrogen fluoride solution and then by contact with aluminum |
| 4540841 |
Catalysis over activated zeolites |
September 10, 1985 |
| A process is provided for conducting organic compound conversion over a catalyst comprising a crystalline zeolite which has been treated by reaction with a compound having a complex fluoroanion. |
| 4540840 |
Catalysis over activated high silica zeolites |
September 10, 1985 |
| A process is provided for conducting organic compound conversion over a catalyst composition comprising a supported crystalline zeolite having a high initial silica-to-alumina mole ratio, said supported zeolite being prepared by compositing said crystalline zeolite with a support matrix |
| 4538016 |
Catalysis over activated zeolites |
August 27, 1985 |
| A process is provided for conducting organic compound conversion over a catalyst comprising a zeolite composition prepared by a method which comprises compositing a specific zeolite material with alumina, impregnating the composite with an aqueous solution of an alkali metal fluoride |
| 4538015 |
Catalysis over activated zeolites |
August 27, 1985 |
| A process is provided for conducting organic compound conversion over a catalyst comprising a crystalline zeolite which has been treated by impregnation with an ammoniacal aluminum fluoride solution, contact with an ammonium salt solution, and calcination. |
| 4538014 |
Catalysis over activated zeolites |
August 27, 1985 |
| A process is provided for conducting organic compound conversion over a catalyst composition comprising a supported crystalline zeolite having a high initial silica-to-alumina mole ratio, said supported zeolite being prepared by compositing said crystalline zeolite with alumina, reacting |
| 4530756 |
Catalysis over activated high silica zeolites |
July 23, 1985 |
| A process is provided for conducting organic compound conversion over a catalyst composition comprising a crystalline zeolite having a high initial silica-to-alumina mole ratio, said zeolite being prepared by calcining the zeolite, contacting said calcined zeolite with solid aluminum |
| 4524140 |
Hydrothermal zeolite activation |
June 18, 1985 |
| Substitution of aluminum or gallium for boron or iron contained in the framework of a high silica content zeolite is effected by treating the zeolite in liquid water in the presence of a compound of aluminum or gallium. |
| 4515892 |
Fermentation process |
May 7, 1985 |
| In an ethanol fermentation process in which an aqueous solution of fermentable sugar is converted by an ethanol-producing microorganism such as a yeast to a dilute aqueous solution of ethanol with the ethanol being present in the solution at a concentration which does not exceed a pr |
| 4515682 |
Catalysis over activated high silica zeolites |
May 7, 1985 |
| A process is provided for conducting organic compound conversion over a catalyst composition comprising a specially treated crystalline zeolite having a high initial silica-to-alumina mole ratio, said zeolite having been synthesized from a reaction mixture comprising a diamine as a catio |
| 4513091 |
Hydrothermal zeolite activation |
April 23, 1985 |
| In the process for activating high-silica zeolite catalyst with an ionized activating agent wherein a crystalline zeolite catalyst having a silica:alumina ratio greater than 70 and a constraint index of 1 to 12 is contacted with the activating agent at elevated temperature, an improv |
| 4512876 |
Catalysis over activated high silica zeolites |
April 23, 1985 |
| A process is provided for conducting organic compound conversion over a catalyst composition comprising a supported crystalline zeolite having a high initial silica-to-alumina mole ratio, said supported zeolite being prepared by compositing said crystalline zeolite with a support matrix |
| 4500422 |
Catalysis over activated zeolites |
February 19, 1985 |
| A process is provided for conducting organic compound conversion over a catalyst comprising a crystalline zeolite which has been treated by impregnation with an ammoniacal aluminum fluoride solution, contact with an ammonium salt solution, and calcination. |
| 4500421 |
Catalysis over activated zeolites |
February 19, 1985 |
| A process is provided for conducting organic compound conversion over a catalyst comprising a crystalline zeolite which has been treated by reaction with a compound having a complex fluoroanion. |
| 4500420 |
Catalysis over activated zeolites |
February 19, 1985 |
| A process is provided for conducting organic compound conversion over a catalyst comprising a zeolite composition prepared by a method which comprises compositing a specific zeolite material with alumina, impregnating the composite with an aqueous solution of an alkali metal fluoride |
| 4500419 |
Catalysis over activated zeolites |
February 19, 1985 |
| A process is provided for conducting organic compound conversion over a catalyst composition comprising a supported crystalline zeolite having a high initial silica-to-alumina mole ratio, said supported zeolite being prepared by compositing said crystalline zeolite with alumina, reacting |
| 4500418 |
Catalysis over activated inorganic oxides |
February 19, 1985 |
| A process is provided for conducting organic compound conversion over a catalyst comprising alumina and/or gallia which has been treated by a method which comprises contact with ammonium or boron fluoride reagent, contact with a particular aqueous ammonium exchange solution, and ther |
| 4477582 |
Reactivation of steam-deactivated catalysts |
October 16, 1984 |
| A process is provided for reactivating a catalyst composition comprising a crystalline zeolite material having a silicon/aluminum atomic ratio of at least about 3.5, said catalyst composition having been deactivated by contact with steam. The method involves the necessary steps of contac |
| 4444902 |
Activation of high silica zeolites |
April 24, 1984 |
| A method for enhancing the activity of high silica zeolite, i.e. a zeolite having a silica-to-alumina ratio greater than 100, is disclosed which involves calcining the zeolite, treating same with aluminum fluoride, followed by treating the zeolite with an ammonium salt solution and then |
| 4444900 |
Activation of zeolites |
April 24, 1984 |
| A method for enhancing the activity of a synthetic crystalline zeolite, including a zeolite having a silica-to-alumina mole ratio greater than 100, which has been synthesized from a reaction mixture containing a diamine as a cation source, is disclosed which involves reacting the zeo |
| 4435516 |
Activity enhancement of high silica zeolites |
March 6, 1984 |
| A crystalline high silica-containing zeolite such as ZSM-5 is treated with an ammoniacal alkali metal aluminate so as to enhance the catalytic activity thereof. |
| 4427791 |
Activation of inorganic oxides |
January 24, 1984 |
| A method for enhancing the activity of inorganic oxide materials is disclosed which involves treating same with a fluoride reagent of ammonium fluoride or boron fluoride, contacting the fluoride reagent contacted material with an ammonium exchange solution and then calcining the final |
| 4427790 |
Activation of zeolites |
January 24, 1984 |
| A method for enhancing the activity of a zeolite, including a zeolite having a silica-to-alumina ratio greater than 100, is disclosed which involves reacting the zeolite with a compound having a complex fluoroanion. |
