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| Number | Title | Issue Date |
| 7276638 | Multi-component molecular sieve catalyst compositions and their use in aromatics reactions The invention relates to a process for producing alkylated aromatic hydrocarbons, preferably with an oxygen or sulfur containing alkylating agent, in the presence of a multi-component molecular sieve catalyst composition that includes a molecular sieve and an active... | 10/02/2007 |
| 7244657 | Zeolite sol and method for preparing the same, composition for forming porous film, porous film and method for forming the same, interlevel insulator film, and semiconductor device The present invention provides a zeolite sol which can be formed into a porous film that can be thinned to an intended thickness by a method used in the ordinary semiconductor process, that excels in dielectric properties, adhesion, film consistency and mechanical s... | 07/17/2007 |
| 7244869 | Method of aromatic alkylation A catalyst for use in aromatic alkylation, such as toluene alkylation with methanol, is comprised of a zeolite with pore size from about 5.0 to about 7.0 â„« containing a hydrogenating metal. The catalyst may be used in preparing an alkyl aromatic product by providi... | 07/17/2007 |
| 7176103 | Zeolite sol and method for preparing the same, composition for forming porous film, porous film and method for forming the same, interlevel insulator film, and semiconductor device The present invention provides a zeolite sol which can be formed into a porous film that can be thinned to an intended thickness by a method used in the ordinary semiconductor process, that excels in dielectric properties, adhesion, film consistency and mechanical s... | 02/13/2007 |
| 7145051 | Combined oxydehydrogenation and cracking catalyst for production of olefins A catalyst is provided comprising (1) at least one solid acid component, and (2) at least one metal-based component comprised of one or more element from Groups 1–3, one or more element from Groups 4–15 and one or more element from Groups 16 and 17 of the Period... | 12/05/2006 |
| 7125817 | Combined cracking and selective hydrogen combustion for catalytic cracking A catalyst system and process for combined cracking and selective hydrogen combustion of hydrocarbons are disclosed. The catalyst comprises (1) at least one solid acid component, (2) at least one metal-based component comprised of one or more elements from Group 3 a... | 10/24/2006 |
| 7122492 | Combined cracking and selective hydrogen combustion for catalytic cracking A catalyst system and process for combined cracking and selective hydrogen combustion of hydrocarbons are disclosed. The catalyst comprises (1) at least one solid acid component, (2) at least one metal-based component comprised of one or more elements from Groups 1 ... | 10/17/2006 |
| 7122495 | Combined cracking and selective hydrogen combustion for catalytic cracking A catalyst system and process for combined cracking and selective hydrogen combustion of hydrocarbons are disclosed. The catalyst system contains at least one solid acid component and at least one metal-based component which consists of (a) oxygen and/or sulfur and ... | 10/17/2006 |
| 7122494 | Combined cracking and selective hydrogen combustion for catalytic cracking A catalyst system and process for combined cracking and selective hydrogen combustion of hydrocarbons are disclosed. The catalyst comprises (1) at least one solid acid component, (2) at least one metal-based component comprised of two or more elements from Groups 4â... | 10/17/2006 |
| 7122493 | Combined cracking and selective hydrogen combustion for catalytic cracking A catalyst system and process for combined cracking and selective hydrogen combustion of hydrocarbons are disclosed. The catalyst comprises: (1) at least one solid acid component, (2) at least one metal-based compo... | 10/17/2006 |
| 7105467 | Nickel catalyzed cross-coupling reactions between organomagnesium compounds and anisole derivatives The present invention provides nickel catalysts and solvents which are useful in a cross-coupling reaction between an organomagnesium compound and an aromatic ether compound, such as an anisole derivative. ... | 09/12/2006 |
| 7026478 | Iron catalyzed cross coupling reactions of aromatic compounds A process for the production of compounds Ar—R1 by means of a cross-coupling reaction of an organometallic reagent R1-M with an aromatic or heteroaromatic substrate Ar—X catalyzed by one or several iron salts or iron complexes as catalysts ... | 04/11/2006 |
| 6838585 | Palladium-catalyzed cross-coupling of aryldiazonium salts with arylsilanes A palladium catalyzed cross-coupling of aryldiazonium salts with organosilanes is disclosed. New reactions that are user friendly and environmentally friendly are now possible, including some reactions that could not be achieved using prior methods. The organosilane... | 01/04/2005 |
| 6459006 | Selective methylation to para-xylene using fuel syngas It has been discovered that para-xylene (PX) can be synthesized with improved selectivity by reacting an aromatic compound such as toluene and/or benzene with a reactant(s) from fuel syngas such as a combination of hydrogen and carbon monoxide and/or carb... | 10/01/2002 |
| 6388156 | Direct selective synthesis of para-xylene by reacting an aromatic compound with a methylating agent formed from CO, Co2 and H2 It has been discovered that para-xylene (PX) can be synthesized with improved selectivity by reacting an aromatic compound such as toluene and/or benzene with a reactant(s) such as a combination of hydrogen and carbon monoxide and/or carbon dioxide and/or... | 05/14/2002 |
| 6375832 | Fuel synthesis A method of transforming a normally gaseous composition containing at least one hydrogen source, at least one oxygen source and at least one carbon source into a normally liquid fuel, wherein said gaseous composition consists at least in part of carbon di... | 04/23/2002 |
| 6215035 | Process for the preparation of aralkylated aromatic compounds using heterogeneous catalyst The invention relates to a process for the preparation of aralkylated aromatic compound with both small and large size aralkylating agents; wherein the catalyst used is heterogeneous solid catalyst removable from the reaction products by simple filtration... | 04/10/2001 |
| 6037513 | Hydroalkylation of aromatic hydrocarbons There is described a process and a catalyst for the hydroalkylation of an aromatic hydrocarbon, particularly benzene, wherein the catalyst comprises a first metal having hydrogenation activity and a crystalline inorganic oxide material having a X-ray diff... | 03/14/2000 |
| 5994603 | Methylation of toluene to para-xylene A process is provided for the production of paraxylene by the methylation of toluene in the presence of a zeolite bound zeolite catalyst. The catalyst comprises first zeolite crystals which are bound together by second zeolite crystals. When used to methy... | 11/30/1999 |
| 5859302 | Processes employing reusable aluminum catalysts Described are novel processes which employ reusable aluminum catalysts in Friedel-Crafts reactions. In one aspect, a novel process for producing a Friedel-Crafts reaction product is described, the process comprising: providing, to a reactor, aromatic reac... | 01/12/1999 |
| 5475176 | Process for preparing vinyl-substituted aromatic compounds from arylamines The present invention relates to a process for preparing vinyl-substituted aromatic compounds of the formula (I) Ar--CH.dbd.CH2, where Ar is a phenyl group that may bear 1 to 5 substituents, naphthyl or anthryl or a naphthyl radical bearing 1 t... | 12/12/1995 |
| 4914251 | Catalyst system for alkylating alkyl aromatics with olefins, procedure for preparing the catalyst, and procedure for carrying out the alkylating The present invention concerns a catalyst for alkylation of alkyl aromatics with olefins, i.e. alkylating toluene, a procedure for the production of the catalyst, and a procedure for carrying out the alkylating of the toluene. The catalyst system contains... | 04/03/1990 |
| 4714794 | Synthetic oils A synthetic oil having excellent oxidation stability, comprising a mixture of monoalkylnaphthalenes which have each a secondary alkyl group of 6 to 24 carbon atoms and in which the specific molar ratio of - to ଲ-substituted monalkylnaphthalen... | 12/22/1987 |
| 4620921 | Acid-catalyzed hydrocarbon conversion process 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 zeo... | 11/04/1986 |
| 4551572 | Process for reacting aromatic compounds A process for reacting an aromatic compound, water and carbon monoxide in the presence of a cadmium-containing catalyst is disclosed.... | 11/05/1985 |
| 4530756 | Catalysis over activated high silica zeolites 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 calcine... | 07/23/1985 |
| 4517075 | Catalysis over activated zeolites A process is provided for conducting organic compound conversion over a catalyst comprising a high silica crystalline zeolite which has been treated by contact with aluminum chloride vapor.... | 05/14/1985 |
| 4515682 | Catalysis over activated high silica zeolites 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 mixtur... | 05/07/1985 |
| 4487983 | Process for reacting aromatic compounds A process for reacting an aromatic compound, hydrogen and at least one of carbon monoxide and an alcohol containing from 1 to 6 carbon atoms in the presence of a cadmium-containing catalyst is disclosed.... | 12/11/1984 |
| 4487984 | Synthesis of alkylaromatic compounds Alkylaromatic compounds may be synthesized by reacting an aromatic compound with a mixture of carbon monoxide and hydrogen at alkylation conditions in the presence of a dual-function catalyst. The catalyst system will comprise (1) a composite of oxides of... | 12/11/1984 |
| 4443643 | Reaction of benzene with ethylene oxide to produce styrene A process for the production of styrene wherein ethylene oxide and benzene are added to a reactor at a temperature between about 600° F. and about 825° F. in the presence of an aluminosilicate type catalyst. The reaction proceeds directly to form styren... | 04/17/1984 |
| 4409412 | Process for producing alkyl aromatic compounds A process for alkylating aromatic compounds wherein the product aromatics are provided with one or more alkyl groups possessing at least two carbon atoms is disclosed wherein starting aromatic compound(s) and an alkylating atent which is a mixture of hydr... | 10/11/1983 |
| 4251675 | Preparation of diphenylmethane Diphenylmethane is synthesized by reacting benzene and benzyl chloride at elevated temperatures in a Friedel-Crafts type reaction using catalytic amounts of a Friedel-Crafts metal halide catalyst such as ferric chloride whereby the desired product is obta... | 02/17/1981 |
| 4238630 | Production of aromatic hydrocarbons Alkylation of aromatic hydrocarbons, especially toluene methylation, is carried out in the presence of a catalyst comprising an aluminosilicate zeolite of the ZSM-5 type in which some or all of the protons of the zeolite have been replaced by monovalent c... | 12/09/1980 |
| 4152364 | Selective production of para-xylene Process for the selective production of para-xylene by methylation of toluene in the presence of a catalyst comprising a crystalline aluminosilicate zeolite, said zeolite having a silica to alumina ratio of at least about 12 and a constraint index, as her... | 05/01/1979 |
| 4143084 | Di-alkylbenzene isomer mixtures A dialkylbenzene isomer mixture consisting essentially of ethyltoluene or diethylbenzene obtained directly by ethylation respectively of toluene or ethylbenzene and which does not require separation of the resulting isomers by prior distillation is provid... | 03/06/1979 |
| 4104319 | Ethylation of mono alkyl benzene A catalytic process is provided for the ethylation of a mono alkyl benzene wherein the alkyl group contains 1 or 2 carbon atoms, i.e. toluene or ethylbenzene to yield a mixture of ethyl toluene or diethylbenzene isomers with minimal undesired by-product f... | 08/01/1978 |
| 4100215 | Selective production of para-xylene Process for the selective production of paraxylene by methylaton of toluene in the presence of a catalyst comprising a crystalline aluminosilicate zeolite characterized by (1) a silica to alumina ratio of at least about 12, (2) a constraint index within t... | 07/11/1978 |
| 4086289 | Manufacture of xylenes In the process of methylating toluene to obtain a mixture of xylenes by contacting toluene with hydrogen and a carbon oxide-containing gas in the presence of a catalyst, the improvement of using as catalyst zinc chromite mixed with an alkali metal exchang... | 04/25/1978 |
| 4070366 | Alkylation process Substituted pyrrole compounds, such as 3-ethyl-4-methyl-5-carbethoxy pyrrole, 2,4-dimethyl-3-acetyl pyrrole and 2-methyl-5-carboxy pyrrole-4-propionic acid diethyl ester, are alkylated in a single step by reaction with an aldehyde or ketone in the presenc... | 01/24/1978 |
