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| Number | Title | Issue Date |
| 5883033 | Hydrocarbon conversion catalyst composition and processes therefor and therewith A catalyst composition, a process for producing the composition, and a hydrotreating process for converting a hydrocarbon stream such as, for example, gasoline, to olefins and C6 to C8 aromatic hydrocarbons such as toluene and xylene... | 03/16/1999 |
| 5880047 | Granular ceramic for improving burning efficiency of hydrocarbon oils and method of producing the same A granular ceramic is prepared by firing a powder of a natural zeolite mineral, a pre-fired powder composed of shell fragments, a pre-fired powder of a silica-alumina mineral, and a copper oxide powder. When used as a fuel additive, the ceramic makes it p... | 03/09/1999 |
| 5880048 | Granular ceramic for water deoxidization and method of producing the same A ceramic and method of producing the same are disclosed, the ceramic having as principal ingredients natural zeolite and shells, wherein silver nitrate, magnesium oxide, potassium oxide, sodium oxide selenium oxide and ferric oxide are added thereto, and... | 03/09/1999 |
| 5866496 | Cracking catalyst and process for preparing same The invention is a catalyst and a process for manufacturing a catalyst. The process includes adding an effective amount of an acid stable surfactant or an alkaline stable surfactant to a slurry of particles including an active mineral component. Desirable... | 02/02/1999 |
| 5858242 | Heavy metal cation recovering agent including a silicate or aluminosilicate type compound and a carbonate type compound An agent for recovering heavy metal cations from an aqueous effluent, including a silicate or aluminosilicate type compound, e.g. an alkali metal silicate or aluminosilicate, and a carbonate type compound, e.g. an alkali metal carbonate, and preferably a ... | 01/12/1999 |
| 5856264 | Adsorbent for use in double glazed windows Novel, hollow, low-density agglomerates for use in sealed insulating glass windows to adsorb water vapor, and optionally organic materials, present in the cavity between the two glazings. These agglomerates provide sufficient but not excessive amounts of ... | 01/05/1999 |
| 5853566 | Zeolite-beta containing catalyst compositions and their use in hydrocarbon conversion processes for producing low boiling point materials The present invention provides a catalyst composition, and a hydrocarbon conversion process in which it is used, comprising as first cracking component a zeolite beta having a silica to alumina molar ratio of at least 20 which is in the form of crystals l... | 12/29/1998 |
| 5849258 | Material with microporous crystalline walls defining a narrow size distribution of mesopores, and process for preparing same The invention relates to a synthetic crystalline material and its use in catalytic conversion of organic compounds and as a sorbent. The crystalline material contains one or more microporous crystalline phases, having a micropore volume greater than or eq... | 12/15/1998 |
| 5834392 | Nitrile selective adsorbent An adsorbent for selective removal of nitrile from a hydrocarbon feedstock includes a substantially homogeneous mixture of a cationic nonacidic zeolite and an inorganic oxide matrix, the zeolite having an accessibility index of between about 0.1 to about ... | 11/10/1998 |
| 5807474 | Process for the preparation of catalysts and for cracking mineral oil fractions The invention relates to a process for the preparation of catalysts or catalyst additives by kneading and/or grinding, spray-drying and heat-treating a suspension containing a catalytically active component as well as aluminum hydroxide and/or one or more... | 09/15/1998 |
| 5801115 | Catalyst composition and methods for using and preparing same A catalyst composition for a catalyst that reduces the emissions of sulfur compounds from industrial processes is disclosed. This catalyst is a spheroidal particle comprised of a mixture of inorganic oxides with an inorganic binder, an organic binder, or ... | 09/01/1998 |
| 5770542 | Method for upgrading waxy feeds using a catalyst comprising mixed powered dewaxing catalyst and powdered isomerization catalyst formed into a discrete particle It has been discovered that waxy feeds can be upgraded using a catalyst made by combining powdered dewaxing catalyst with powdered isomerization catalyst said mixture of powdered catalysts being formed into a discrete particle.... | 06/23/1998 |
| 5762902 | Catalyst comprising a faujasite type zeolite and a ton type zeolite and a process for the hydroconversion of hydrocarbon petroleum feeds The invention concerns a composition comprising at least one matrix, at least one faujasite type zeolite and at least one TON type zeolite. The TON type zeolite can be Nu-10, THETA-1, KZ-2, or ISI-1. The catalyst also contains at least one hydrogenating e... | 06/09/1998 |
| 5719098 | Sorbent based on smectitic clay minerals reacted with alkaline ion exchanger A sorbent based on smectitic clay minerals with originally low water uptake ability wherein the smectitic clay minerals are chemically reacted with at least one solid ion exchanger in alkaline form.... | 02/17/1998 |
| 5710085 | Manufacture of improved zeolite beta catalyst A catalyst composition which comprises a crystalline metallosilicate having the structure of zeolite Beta, phosphorus and a matrix that is substantially free of crystalline aluminum phosphate which has improved resistance to steam deactivation and which h... | 01/20/1998 |
| 5696043 | Synthetic crystalline aluminosilicate for the catalytic conversion of hydrocarbons in petrochemical processes The subject invention describes a synthetic crystalline aluminosilicate of the pentasil type and method for using the same as a catalyst or a catalyst component in petrochemical processes for the catalytic conversion of hydrocarbons and their derivatives ... | 12/09/1997 |
| 5677259 | Gas oil desulfurization catalyst and desulfurization method A gas oil desulfurization catalyst and the desulfurization method are disclosed, which comprises (A) at least one kind of a metal selected from the group consisting of Mo and W, (B) at least one kind of a metal selected from the group consisting of Co and... | 10/14/1997 |
| 5614453 | Catalyst containing zeolite beta and a pillared clay A composition of matter comprising zeolite Beta and a pillared clay is especially suited for use in combination with one or more hydrogenation components as a catalyst for hydrocracking various types of feedstocks.... | 03/25/1997 |
| 5614079 | Catalytic dewaxing over silica bound molecular sieve A molecular sieve catalyst is composited with an inert binder derived from an organic silicon source and organic polymer. The catalyst is used in dewaxing of petroleum chargestocks.... | 03/25/1997 |
| 5609842 | Zeolitic desulfuring agents and their application in the processing of gasses containing notable CO2 proportions It is now possible to desulfurize gases containing appreciable carbon dioxide proportions by limiting the production of carbon oxysulfide to a very low level, by treating these gases with adsorbents composed of very small, partially calcic zeolite A cryst... | 03/11/1997 |
| 5569634 | Process upset-resistant inorganic supports for bioremediation Porous bodies are produced which are suitable for use as supports for catalysts, including living cells, such as bacteria and which are upset resistant to acids and bases. The bodies have a significantly large average pore diameter of about 0.5 to 100 mic... | 10/29/1996 |
| 5565400 | Hydrothermally stable metal oxide solid solutions as carriers for catalytic composites Ternary metal oxide solid solutions containing permutations of magnesium, nickel, and cobalt with trivalent metals such as aluminum, chromium, gallium, and iron show unusual resistance to rehydration. A composite comprising a) a ternary metal oxide solid ... | 10/15/1996 |
| 5565394 | Low expansion molecular sieves and method of making same Low expansion molecular sieves bodies and method of making them which involves forming a mixture of up to about 40 weight parts of a thermal expansion control component which can be at least one of zircon, feldspar, calcium silicate, talc, steatite, forst... | 10/15/1996 |
| 5559067 | Modified microsphere FCC catalysts and manufacture thereof An in situ process for making improved zeolitic fluid cracking catalyst by spray drying a mixture of hydrous kaolin, gibbsite and spinel, essentially free from metakaolin, calcining the resulting microspheres to convert the hydrous kaolin to metakaolin wh... | 09/24/1996 |
| 5521133 | Phosphorus bound porous microspheres This invention relates to microspheres produced by spray drying clay slurries and calcining the product to form attrition resistant microspheres. Phosphoric acid is injected in a neutral to mildly alkaline dispersed high solids kaolin slurry immediately b... | 05/28/1996 |
| 5518977 | Adsorbent composites for sorption cooling process and apparatus A desiccant cooling apparatus and process using a solid adsorbent and refrigerant wherein the solid adsorbent is selected from the group consisting of zeolite Y-85, a low cerium rare earth exchanged Y-84 and a rare earth exchanged LZ-210, and the adsorben... | 05/21/1996 |
| 5510306 | Process for isomerizing linear olefins to isoolefins An active and stable catalyst for isomerizing linear olefins to methyl branched isoolefins is provided by (a) mixing (i) a zeolite powder containing at least one zeolite with at least one one-dimensional pore structure having pore size small enough to ret... | 04/23/1996 |
| 5492874 | Active component for the capture of basic nitrogen in catalytic cracking catalysts (FCC) An active component is used for capturing basic nitrogen in field catalytic cracking (FCC). The active component contains a modified sepiolite consisting of a modified magnesium silicate in which divalent Mg cations have been substituted by trivalent Al c... | 02/20/1996 |
| 5477014 | Muffler device for internal combustion engines Layered adsorbent-substrate composites are prepared by methods comprising heating the surface of an aluminum substrate, contacting the surface of the substrate with a slurry containing the adsorbent and a binder, and heating the coatings to form hardened ... | 12/19/1995 |
| 5472922 | Manufacture of improved catalyst Methods for preparing phosphorus containing catalysts comprising a large-pore zeolite, e.g., zeolite Beta, zeolite ZSM-12, or zeolite ZSM-20, and a matrix which have improved attrition resistance. The present invention includes the catalyst compositions p... | 12/05/1995 |
| 5470810 | Catalyst and method of manufacture This invention relates to the catalyst composition resulting from the addition of phosphorus, and optionally, a matrix material, to a porous crystalline material having the structure of MCM-22, along with the method for making the catalyst composition, an... | 11/28/1995 |
| 5468700 | Hydrocarbon conversion catalyst for use in selectively making middle distillates A hydrocarbon conversion catalyst useful for converting hydrocarbon feeds to midbarrel products is prepared by extruding a mixture of an inorganic refractory oxide component and a crystalline aluminosilicate zeolite having cracking activity to form extrud... | 11/21/1995 |
| 5457078 | Manufacture of improved zeolite Beta catalyst A catalyst composition which comprises a crystalline metallosilicate having the structure of zeolite Beta, phosphorus, and a matrix that is substantially free of crystalline aluminum phosphate which has improved resistance to steam deactivation and which ... | 10/10/1995 |
| 5456821 | Catalytic conversion with improved catalyst A process is provided for converting feedstock hydrocarbon compounds over a catalyst composition which comprises a large-pore molecular sieve component and an additive catalyst component, said additive catalyst component having been formulated in a specia... | 10/10/1995 |
| 5413977 | Catalyst containing zeolite beta and a layered magnesium silicate A composition of matter comprising zeolite Beta and a layered magnesium silicate such as sepiolite is especially suited for use in combination with one or more hydrogenation components as a catalyst for hydrocracking various types of feedstocks.... | 05/09/1995 |
| 5413978 | Catalytically inert particles for blending with petroleum cracking catalyst A method for converting attapulgite clay which has never been heat treated sufficiently to destroy the natural colloidal properties of the clay to attrition resistant, low surface area, essentially catalytically inert particles adapted for use as a blendi... | 05/09/1995 |
| 5403799 | Process upset-resistant inorganic supports for bioremediation Porous bodies are produced which are suitable for use as supports for catalysts, including living cells, such as bacteria and which are upset resistant to acids and bases. The bodies have a significantly large average pore diameter of about 0.5 to 100 mic... | 04/04/1995 |
| 5395809 | Modified microsphere FCC catalysts An in situ process for making improved zeolitic fluid cracking catalyst by spray drying a mixture of hydrous kaolin and spinel, essentially free from metakaolin, calcining the resulting microspheres to convert the hydrous kaolin to metakaolin, and reactin... | 03/07/1995 |
| 5391528 | Catalyst with an omega zeolite base, containing at least one group IIa, IVb, IIb or IVa metal, and use thereof in the isomerization of an aromatic C8 cut The invention relates to an alumino-silicate type catalyst containing an omega zeolite with a Si/Al atomic ratio of between 2.5 and 100, with a content by weight of sodium of less than 2 000 ppm (in relation to the weight off dry zeolite) and further cont... | 02/21/1995 |
| 5387564 | Molding and calcining of zeolite powder A plastic or moldable composition of zeolite is obtained by adding 0.1-20 parts by weight of a ଲ-1.3-glucan, 1:1 layer-type clay mineral and 2:1 layer-type clay mineral together with an adequate amount of water to 100 parts by weight of zeolite powd... | 02/07/1995 |
