Patent application number | Description | Published |
20080228020 | Method for Converting Ethylene Into Propylene - The invention relates to a method for converting ethylene into propylene consisting in reacting said ethylene with a supported metal compound comprising an aluminium oxide based support to which a tungsten hydride is grafted. Said reaction is carried out at a temperature ranging from 20 to 600° C., preferably between 50 and 350° C., at an absolute pressure ranging from 0.01 to 8 MPa, preferably between 0.01 and 1 MPa. A catalyst is regeneratable by introducing hydrogen at a temperature of 50-300° C. | 09-18-2008 |
20090306441 | Method for treatment of oil and/or gas field waste and by product materials - The present invention relates to a process for preparing 2,3-dimethylbutane which comprises contacting in a reaction zone isobutane with a supported catalyst comprising a tungsten hydride and a support comprising an aluminium oxide, so as to form a reaction mixture comprising 2,3-dimethylbutane. The contacting essentially leads to performing a metathesis reaction of the isobutane, with a very high specificity in the formation of 2,3-dimethylbutane. The catalyst is preferably a tungsten hydride grafted onto a support based on aluminium oxide. The support can be chosen from aluminium oxides, mixed aluminium oxides and modified aluminium oxides. The reaction mixture can be isolated and preferably subjected to one or more fractionating operations in order to recover 2,3-dimethylbutane and optionally one or more other components of the reaction mixture, such as C | 12-10-2009 |
20100028735 | PROCESS FOR CONVERTING METHANE INTO A HIGHER ALKANE MIXTURE - The present invention relates to a process for converting methane into a higher alkane mixture, preferably a liquid alkane mixture, comprising (C | 02-04-2010 |
20100030003 | PROCESS FOR MANUFACTURING NEOHEXENE - The present invention relates to a process for manufacturing neohexene, comprising contacting isobutene with a supported catalyst comprising a tungsten compound chosen from tungsten hydrides, organometallic tungsten compounds and organometallic tungsten hydrides, and a support comprising an oxide of aluminium, so as to form a reaction mixture comprising neohexene, and preferably separating neohexene from the reaction mixture, so as to isolate it. The contacting leads to the direct production of neohexene, in particular in a single (reaction) stage and with a high molar selectivity for neohexene. The contacting can be performed at a temperature of 50 to 600° C., under a total absolute pressure of 0.01 to 100 MPa. | 02-04-2010 |
20100048926 | CATALYST SYSTEM AND PROCESS FOR THE PRODUCTION OF EPOXIDES - The present invention relates to a catalyst system which is a mixture of at least two catalytic species, the first catalytic species being a dehydrogenation catalyst and the second catalytic species being an epoxidation catalyst and comprising silver. The present invention also relates to a process for the production of epoxides, in particular a process for the production of an epoxide from an alkane or a mixture comprising an alkane and an alkene, which process comprises contacting said alkane or mixture comprising said alkane and said alkene and a source of oxygen with such a catalyst system comprising a mixture of at least two catalytic species, the first catalytic species providing dehydrogenation activity and the second catalytic species providing epoxidation activity and comprising silver. | 02-25-2010 |
20100197482 | SOLID METAL COMPOUND, PREPARATIONS AND USES THEREOF - The invention relates to a solid metal compound comprising (i) a solid support comprising aluminium oxide, (ii) at least one first metal compound (C1) selected from metal hydrides, organometallic compounds and organometallic hydrides, and comprising a metal (M1) selected from the lanthanides, the actinides and the metals of Groups 4 to 7 of the Periodic Table of the Elements, and (iii) at least one second metal compound (C2) comprising a metal (M2) selected from the metals of Groups 8 to 10 of said Table. The compounds (C1) and (C2) are preferably supported on, particularly grafted onto the solid support. The invention also relates to processes for preparing the solid metal compound, preferably comprising stage (1) comprising dispersing and preferably grafting (i) an organometallic precursor (Pr1) comprising the metal (M1) and (ii) a precursor (Pr2) comprising the metal (M2) onto the support, so as to produce the solid metal compound, and preferably stage (2) comprising contacting the solid metal compound thus obtained with hydrogen and/or a reducing agent. The invention also relates to the use of the solid metal compound in processes comprising hydrocarbon reactions optionally in the presence of hydrogen, and preferably involving the splitting and recombining of carbon-carbon and/or carbon-hydrogen and/or carbon-metal bonds, so as to produce final hydrocarbons different from the starting ones. The solid metal compound can be used in processes comprising alkane and/or alkene metathesis, non-oxidative methane coupling, alkene oligomerisation, methane-olysis of hydrocarbons, cross-metathesis and hydrogenolysis of hydrocarbons, e.g. saturated hydrocarbons, hydrocarbon polymers/oligomers or waxes, in the presence of hydrogen. | 08-05-2010 |
20110071331 | PROCESS FOR CONVERTING ETHANE INTO LIQUID ALKANE MIXTURES - The invention relates to a process for converting ethane into liquid mixture of (C | 03-24-2011 |
20110220579 | REMOVAL OF METAL IONS FROM AQUEOUS EFFLUENTS - The invention relates to a method of reducing the ionic metal content of aqueous effluents. The inventive method consists in bringing an aqueous effluent loaded with metal ions into contact with at least one hydrogen-covered metal. | 09-15-2011 |
20110245560 | Olefin Metathesis Reactant Ratios Used with Tungsten Hydride Catalysts - Processes for olefin metathesis, for example for the production of propylene, utilize a catalyst comprising a solid support and a tungsten hydride bonded to alumina present in the support. Conversion, selectivity, and/or catalyst stability advantages may be realized when a first olefin reactant (e.g., ethylene) is present in the hydrocarbon feedstock at a stoichiometric deficit relative to a second, higher carbon number olefin reactant (e.g., butylene). | 10-06-2011 |
20110245569 | Conversion of Acyclic Symmetrical Olefins to Higher and Lower Carbon Number Olefin Products - Processes for the conversion, under conditions and with a catalyst system effective for olefin metathesis, of hydrocarbon feedstocks comprising an acyclic symmetrical olefin (e.g., butene-2) are described. Olefin products of lower and higher carbon numbers (e.g., propylene and pentene) are formed in the presence of a catalyst comprising a solid support and a tungsten hydride bonded to alumina present in the support. This occurs despite the olefin metathesis reaction mechanism leading to a degenerative result, without any expected production of different carbon number products from acyclic symmetrical olefins. | 10-06-2011 |
20110245570 | Conversion of Butylene to Propylene Under Olefin Metathesis Conditions - Processes for the conversion, under conditions and with a catalyst system effective for olefin metathesis, of hydrocarbon feedstocks comprising butylene, for example all or a large proportion of a single C | 10-06-2011 |
20120316057 | OLEFIN METATHESIS CATALYST CONTAINING TUNGSTEN FLUORINE BONDS - A catalyst for the metathesis of olefins in general and specifically for the production of propylene from ethylene and butylene has been developed. The catalyst comprises a tungsten metal compound, which contains at least one tungsten-fluoro bond, dispersed or grafted onto a support. A specific example of the catalyst is the compound WOF(CH | 12-13-2012 |
20120316374 | OLEFIN METATHESIS PROCESS USING A CATALYST CONTAINING TUNGSTEN FLUORINE BONDS - A process for the metathesis of olefins has been developed. The process comprises contacting a hydrocarbon feedstock with a catalyst at metathesis conditions. The catalyst comprises a tungsten compound, which contains at least one tungsten-fluoro bond, dispersed or grafted onto a support. A specific example of the catalyst is the compound WOF(CH | 12-13-2012 |
20140243542 | OLEFIN METATHESIS CATALYST CONTAINING TUNGSTEN FLUORINE BONDS - A catalyst for the metathesis of olefins in general and specifically for the production of propylene from ethylene and butylene has been developed. The catalyst comprises a tungsten metal compound, which contains at least one tungsten-fluoro bond, dispersed or grafted onto a support. A specific example of the catalyst is the compound WOF(CH | 08-28-2014 |
20140357922 | OLEFIN METATHESIS PROCESS USING A CATALYST CONTAINING TUNGSTEN FLUORINE BONDS - A process for the metathesis of olefins has been developed. The process comprises contacting a hydrocarbon feedstock with a catalyst at metathesis conditions. The catalyst comprises a tungsten compound, which contains at least one tungsten-fluoro bond, dispersed or grafted onto a support. A specific example of the catalyst is the compound WOF(CH | 12-04-2014 |
Patent application number | Description | Published |
20080255328 | Method For Metathesis of Compounds Comprising an Olefinic Double Bond, in Particular Olefins - The invention relates to a method for metathesis of one or several reagents comprising a linear or branched hydrocarbon chain containing a double olefinic bond Csp | 10-16-2008 |
20090247780 | METHOD OF PRODUCING NITRILE COMPOUNDS - The present invention relates to the manufacture of nitrile compounds from unsaturated organic compounds by reaction with hydrogen cyanide. It relates more particularly to the manufacture of nitrile compounds of use in the synthesis of adiponitrile, an important chemical intermediate in the manufacture of major chemical compounds, such as hexamethylenediamine and ε-caprolactam. The invention provides a process for the manufacture of organic compounds comprising at least one nitrile functional group by carrying out a hydrocyanation reaction between hydrogen cyanide and an organic compound comprising at least one ethylenic unsaturation. This reaction is carried out in the presence of a catalytic system comprising a metal element chosen from the group consisting of nickel, platinum and palladium and an organophosphorus ligand, the reaction medium additionally comprising an ionic liquid in the liquid state at least at the temperature at which the hydrocyanation reaction is carried out. | 10-01-2009 |
20110033996 | METHOD FOR PRODUCING A CONDUCTIVE NANOPARTICLE MEMORY DEVICE - A method for producing a memory device with nanoparticles, comprising the steps of:
| 02-10-2011 |
20110160412 | HYBRID ORGANIC-INORGANIC MATERIALS THAT CONTAIN STABILIZED CARBENE - The present invention relates to materials and particularly “organometallic-organic-inorganic hybrid materials” that can be used as heterogeneous catalysts for selective catalytic reactions. More precisely this invention relates to organic-inorganic hybrid nanostructured materials comprising a regularly distributed stabilized carbene that binds strongly to a metal so as to form a stable organometallic-organic-inorganic hybrid material having high catalytic performances. | 06-30-2011 |
20110160503 | PROCESS FOR PREPARING A SUPPORTED CATALYST BASED ON Ni AND A METAL FROM GROUP IB, FOR THE SELECTIVE HYDROGENATION OF POLYUNSATURATED HYDROCARBONS - A process is described for preparing a catalyst comprising at least one porous support and at least one metallic phase containing nickel and at least one metal M from group IB in a proportion such that the molar ratio M/Ni is in the range 0.005 to 0.5, said process comprising at least the following steps in succession:
| 06-30-2011 |
20110166398 | PROCESS FOR PREPARING A Ni/Sn SUPPORTED CATALYST FOR THE SELECTIVE HYDROGENATION OF POLYUNSATURATED HYDROCARBONS - A process is described for preparing a catalyst comprising at least one porous support and at least one metallic phase containing nickel and tin in a proportion such that the Sn/Ni molar ratio is in the range 0.01 to 0.2, said process comprising at least the following steps in succession:
| 07-07-2011 |
20110257006 | METHOD FOR PREPARING A STRUCTURED POROUS MATERIAL COMPRISING NANOPARTICLES OF METAL 0 IMBEDDED IN THE WALLS THEREOF - The present invention relates to a process for producing a structured porous material comprising a structured inorganic framework made up of metal-oxide based walls in which nanoparticles of metal 0 are incorporated, which comprises the following steps:
| 10-20-2011 |
20120094479 | METHOD FOR MAKING ELECTRICAL INTERCONNECTIONS WITH CARBON NANOTUBES - A method for making electrical interconnections of carbon nanotubes, including a) depositing an ionic liquid including nanoparticles of at least one suspended electrically conducting material, covering at least one surface of an element configured to be used as a support for carbon nanotubes, b) forming a deposit of the nanoparticles at least against the surface of the element, c) removing the remaining ionic liquid, d) growing carbon nanotubes from the deposited nanoparticles, and further including between the c) removing the remaining ionic liquid and the d) growing carbon nanotubes, passivating the deposited nanoparticles not found against the surface of the element. | 04-19-2012 |
20140370678 | METHOD FOR PRODUCING A CONDUCTIVE NANOPARTICLE MEMORY DEVICE - A method for producing a memory device with nanoparticles, comprising the steps of:
| 12-18-2014 |
Patent application number | Description | Published |
20110253643 | High Surface Area Fibrous Silica Nanoparticles - Disclosed are high surface area nanoparticles that have a fibrous morphology. The nanoparticles have a plurality of fibers, wherein each fiber is in contact with one other fiber and each fiber has a length of between about 1 nm and about 5000 nm. Also disclosed are applications of the nanoparticles of the present invention, and methods of fabrication of the nanoparticles of the present invention. | 10-20-2011 |
20130211137 | DIRECT ACTIVATION OF METHANE - Heteropolyacids (HPAs) can activate methane at ambient temperature (e.g., 20° C.) and atmospheric pressure, and transform methane to acetic acid, in the absence of any noble metal such as Pd). The HPAs can be, for example, those with Keggin structure: H | 08-15-2013 |
20130224106 | HYDROGEN GENERATION - A process for the decomposition of methane can be controlled to form ethane or hydrogen with a solid carbon product. | 08-29-2013 |
20140097387 | METHODS TO SYNTHESIZE NiPt BIMETALLIC NANOPARTICLES BY A REVERSED-PHASE MICROEMULSION, DEPOSITION OF NiPt BIMETALLIC NANOPARTICLES ON A SUPPORT, AND APPLICATION OF THE SUPPORTED CATALYST FOR CO2 REFORMING OF METHANE - Embodiments of the present disclosure provide for NiPt nanoparticles, compositions and supports including NiPt nanoparticles, methods of making NiPt nanoparticles, methods of supporting NiPt nanoparticles, methods of using NiPt nanoparticles, and the like. | 04-10-2014 |