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| Number | Title | Issue Date |
| 7297827 | Use of monolith catalyst to prepare ethylbenzene Disclosed is an alkylation reactor for preparing ethylbenzene. The reactor comprises a monolith catalyst system that includes a monolith support impregnated or co-formed with a catalyst suitable to catalyze the alkylation of benzene with ethylene. The catalyst may b... | 11/20/2007 |
| 7294420 | Production of hydrogen A method of producing hydrogen for a fuel cell from a hydrocarbon fuel composition, by providing a hydrocarbon fuel composition, which is obtained by contacting a liquid hydrocarbon feed comprising an alkylating agent with an acidic catalyst, under conditions effect... | 11/13/2007 |
| 7161052 | Process for the valorization of a charge of hydrocarbons and for reducing the vapor pressure of said charge A process is described for the valorization of a charge of hydrocarbons and for reducing the vapour pressure of said charge, comprising three steps: a step a) consisting of separating said charge of hydrocarbons into a fraction (O1) comprising essentially compounds ... | 01/09/2007 |
| 7014799 | Method of forming mesoscopically structured material A low-cost, efficient method of preparing hierarchically ordered structures by filling a minimold with a microsphere-containing latex suspension, forming an close-packed array of microspheres within the minimold and filling void space in the array with a self-assemb... | 03/21/2006 |
| 6605566 | Supported bimetallic catalyst with a strong interaction between a group VIII metal and tin, and its use in a catalytic reforming process A novel supported bimetallic catalyst comprises a group VIII metal such as platinum, and tin, at least a portion of which interacts strongly with the group VIII metal in the catalyst in the reduced state. In the partially oxidized state, the catalyst of t... | 08/12/2003 |
| 6573415 | Process for the preparation of mono alkyl aromatic compounds Process for the mono alkylation of a hydrocarbon substrate containing aromatic hydrocarbon compounds comprising contacting the aromatic substrate with an alkylating agent consisting of a mixture of olefinic compounds and poly-alkylated aromatic compounds ... | 06/03/2003 |
| 6436866 | Lewis acid catalyst composition Disclosed is a Lewis acid catalyst composition comprising a specific mixed medium and a Lewis acid catalyst (II), wherein the specific mixed medium is mixed medium (I) comprising a perfluorinated aliphatic hydrocarbon (A) and at least one non-fluorinated ... | 08/20/2002 |
| 6420305 | Solid acid catalyst, method for producing the same and reaction method using the same A method for producting a solid acid catalyst is provided which produces a shaped material of a solid acid catalyst containing a sulfureous component but have a high activity and having a practically sufficient handleability and mechanical strength involv... | 07/16/2002 |
| 6340414 | Process for the recovery of perfluorinated sulphonic acids from spent acid Process for the recovery of fluorinated sulphonic acid including the step of subjecting the spent acid to heat treatment with stepwise or continuously increasing temperature, withdrawing at least two fractions during the heat treatment; and recovering the... | 01/22/2002 |
| 6281400 | Process for preparation of a catalytic microcomposite from a silicate and a highly fluorinated ion exchange resin The present invention relates to a process for preparing a microcomposite comprising a highly fluorinated ion-exchange polymer containing pendant sulfonate functional groups, said polymer existing as aggregated particles entrapped within and dispersed thr... | 08/28/2001 |
| 6160190 | Alkylation of aromatic compounds using a sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide Porous microcomposites have been prepared from perfluorinated ion-exchange polymer and metal oxides such as silica using the sol-gel process. Such microcomposites possess high surface area and exhibit extremely high catalytic activity. The microcomposites... | 12/12/2000 |
| 6133493 | Perfluorinated ion-exchange microcomposite catalysts modified with Lewis acid This invention concerns a modified porous microcomposite comprising a perfluorinated ion-exchange polymer entrapped within and highly dispersed throughout a network of inorganic oxide wherein the network and optionally the pendant groups of the polymer ha... | 10/17/2000 |
| 6123836 | Process for the removal of acid compounds from a hydrocarbon stream Process for the removal of acid compounds contained in a hydrocarbon process stream by passing the process stream through a fixed bed of an adsorption material at conditions where the acid compounds adsorb on the material and withdrawing a purified hydroc... | 09/26/2000 |
| 5986155 | Catalytic process for making high reactivity alkylating agents and products resulting therefrom Treating low reactivity alkylating agents in the vapor phase with catalysts converts the low reactivity alkylating agents to high reactivity alkylating agents. The alkylating agents are useful in synthesis of alkyl aromatics with Lewis acid catalysts.... | 11/16/1999 |
| 5959169 | Process for the removal of aromatic Process for the selective removal of aromatic compounds from a hydrocarbon mixture by contacting the mixture in presence of an olefinic alkylating agent with an alkylation catalyst selected from the group of fluorinated alkyl sulphonic acids movably adsor... | 09/28/1999 |
| 5877383 | Process for the preparation of a hydrocarbon product being rich in middle distillate hydrocarbon fractionation A process for the manufacture of a hydrocarbon mixture being rich in middle distillate products with the boiling part range of 175°-360° C. by alkylation of a hydrocarbon feed stock with an olefinic alkylating agent, comprises the steps of contacting a ... | 03/02/1999 |
| 5849965 | Multistage alkylation process In a multistage process, a relatively unreactive paraffinic substrate is alkylated in a primary stage while a more reactive aromatic substrate is alkylated in a secondary stage wherein at least a portion of the effluent from the primary stage is used as a... | 12/15/1998 |
| 5750818 | Alkylation process A process for cooling unreacted hydrocarbon substrate that is recycled to an alkylation reactor and for minimizing the concentration of lower boiling hydrocarbons in such recycle.... | 05/12/1998 |
| 5663474 | Alkylation process using hydrogen fluoride-containing alkylation catalysts This invention relates to catalysts for alkylation reactions and their preparation. More particularly, the invention relates to an alkylation process using a hydrogen fluoride-containing alkylation catalyst, which catalyst may be safely and easily handled... | 09/02/1997 |
| 5475162 | Acid functionalized organically-bridged polysilsesquioxanes as catalysts for acid catalyzed reactions A process of effecting an acid catalyzed reaction wherein a reactant capable of undergoing an acid catalyzed reaction is contacted with an acid functionalized organically-bridged polysilsesquioxane catalyst where all of the acid functionality is covalentl... | 12/12/1995 |
| 5472921 | Process for the recovery of spent fluorinated sulphonic acid catalyst in an alkylation process Process for the recovery of fluorinated sulphonic acid catalyst from tar being formed during alkylation of hydrocarbons in the presence of the fluorinated sulphonic acid catalyst and containing spent fluorinated sulphonic acid catalyst in form of salts wi... | 12/05/1995 |
| 5434326 | Discrete molecular sieve and use in aromatic-olefin alkylation This invention presents a novel MgAPSO molecular sieve, containing a critical range of magnesium in the sieve framework and having a small crystallite size, which is particularly active for hydrocarbon conversion. The sieve advantageously is incorporated,... | 07/18/1995 |
| 5243115 | Alkylation of organic aromatic compounds Aromatic compounds are alkylated in a catalytic distillation, wherein the catalyst structure also serves as a distillation component by contacting the aromatic compound with a C2 to C10 olefin in the catalyst bed under 0.25 to 50 atm... | 09/07/1993 |
| 5110778 | Boron aluminum and gallium perfluoro alkanesulfonate and resinsulfonate catalysts Boron, aluminum and gallium C1 -C18 perfluoroalkane-sulfonates (CF3 (CF2)n SO3)3 M (M=B, A1, Ga; n=0-17) as well as perfluororesin sulfonates such as Nafionates are new, highly effect... | 05/05/1992 |
| 5105047 | Catalysis using blends of perfluorinated ion-exchange polymers with perfluorinated diluents Improved processes for acid-catalyzed oligomerization of olefins and alkylation of toluene are disclosed using a catalyst blend of at least one perfluorinated ion-exchange polymer containing sulfonic acid groups and at least one polymer diluent in a nonpo... | 04/14/1992 |
| 5105042 | Sulfated layered titanium oxide catalysts in process for preparing long chain alkyl aromatic compounds There is provided a sulfated layered titanium oxide catalyst. Relatively long chain alkyl aromatic compounds are prepared by alkylating an alkylatable aromatic compound with a relatively long chain alkylating agent under alkylation reaction conditions in ... | 04/14/1992 |
| 5097061 | Method for preparing -(4-isobutylphenyl)propionic acid or its precursor A method for preparing -(4-isobutylphenyl)propionic acid or its precursor is here disclosed which comprises a step A of forming p-isobutylstyrene from p-isobutylethylbenzene and a step B of forming -(4-isobutylphenyl)propionaldehyde from p-i... | 03/17/1992 |
| 5043510 | Aqueous alkylation process This invention relates to a process for alkylation at carbon and phosphorus sites in an aqueous medium using precious metal catalysts containing sulfonated triarylphosphines (STP) of the generic formula P(C6 H4 SO3 --)X(C | 08/27/1991 |
| 5034562 | Acid-sulfolance catalyzed production of cyclic alkylated compounds An acid-sulfolane catalyzed process of preparing cyclic alkylated compounds such as indanes by reacting a monovinyl aromatic compound with an olefinic compound, such reaction further improved by the addition of a lanthanide oxide, or Group VI A elements a... | 07/23/1991 |
| 4990716 | Preparation of diphenylmethanes Diphenylmethanes such as o-benzyltoluene are prepared by contacting a benzyl halide with a benzene in the presence of a catalytic amount of a normally solid, insoluble perfluorosulfonic acid polymer under reaction conditions. The o-benzyltoluenes are usef... | 02/05/1991 |
| 4967034 | Process for the alkylation of alkanes or aromatic hydrocarbons The invention relates to a process for the vapor phase alkylation of alkanes or aromatic hydrocarbons comprising (a) adsorbing an alkene on a dry cation exchange resin in its hydrogen form and (b) reacting said adsorbed alkene with at least one alkane or ... | 10/30/1990 |
| 4912278 | Friedel-Crafts reactions Compositions containing sulfuric acid and one or more of certain chalcogen-containing compounds in which the chalcogen compound/H2 SO4 molar ratio is below 2 contain the mono-adduct of sulfuric acid which is catalytically active for ... | 03/27/1990 |
| 4885425 | Alkylation Compositions containing sulfuric acid and one or more of certain chalcogen-containing compounds in which the chalcogen compound/H2 SO4 molar ratio is below 2 contain the mono-adduct of sulfuric acid which is catalytically active for ... | 12/05/1989 |
| 4849569 | Alkylation of organic aromatic compounds Aromatic compounds are alkylated in a catalytic distillation, wherein the catalyst structure also serves as a distillation component by contacting the aromatic compound with a C2 to C10 olefin in the catalyst bed under 0.25 to 50 atm... | 07/18/1989 |
| 4800186 | Regeneration of fluorocarbonsulfonic acid catalysts A method of regenerating a deactivated fluorocarbonsulfonic acid polymer catalyst by contacting the deactivated catalyst with a solvent combination wherein a first solvent swells the structure of the polymer and the other acts as a diluent to modify the s... | 01/24/1989 |
| 4673769 | Composite catalyst for hydrocarbon conversion reactions This invention provides a catalyst product for hydrocarbon conversion reactions and a method for reacting hydrocarbons employing such catalyst product. The catalyst product is a composite of a perfluorinated polymersulfonic acid and an ion-stabilizing age... | 06/16/1987 |
| 4650918 | Alkylation aide for sulfuric acid catalyzed alkylation units Hydrocarbon alkylation processes which are catalyzed by acids are promoted by the addition of an alkylation promoter which is a combination of a new carboxylic acid having the structural formula ##STR1## wherein R, R1 and R2 are... | 03/17/1987 |
| 4613723 | Process for effecting hydrocarbon isomerization or alkylation The present invention relates to supported superacidic catalysts comprising C4 -C18, preferentially C6 to C12, perfluorinated alkanesulfonic acid absorbed on suitable supports, such as fluoridated alumina, alumi... | 09/23/1986 |
| 4547604 | Selective isopropylation of cumene to meta-diisopropylbenzene Resorcinol is prepared in high yield and purity by an improved process through superacid (such as perfluorinated alkanesulfonic acids of one to eighteen carbon atoms or polymeric perfluorinated resinsulfonic acids, such as acidified Nafion-H, catalyzed cl... | 10/15/1985 |
| 4547474 | Supported superacidic catalysts based on C10 to C18 perfluorinated alkanesulfonic acids The present invention relates to supported superacidic catalysts comprising C4 -C18, preferentially C6 to C12, perfluorinated alkanesulfonic acid absorbed on suitable supports, such as fluorinated alumina, alumi... | 10/15/1985 |
