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Matches 601 - 650 out of 2,834

Document Document Title
WO/2002/026668A1
The invention relates to a method for the heterogenically catalysed dehydrogenation of one or several C¿2?-C¿30? hydrocarbons that can be dehydrogenated, in one or several reaction zones, in a reaction gas mixture containing said hydro...  
WO/2002/024334A1
The invention relates to a method for regenerating a heterogeneous catalyst, which is used with hydrogen, in order to produce compounds containing NH¿2? groups by hydrogenating compounds that contain at least one unsaturated carbon-nitr...  
WO/2002/022259A1
The invention relates to a method for regenerating a zeolite catalyst, comprising a thermal treatment of the catalyst in the presence of a gas stream at temperatures above 120 °C, whereby the mass-dependent residence time of the gas str...  
WO/2002/020503A1
The invention relates to a method for producing an epoxide in the presence of a zeolite catalyst, whereby (i) an alkene is reacted with a hydroperoxide in the presence of the catalyst in order to obtain the epoxide, and at least one alka...  
WO/2002/020451A1
A method of recovering metal values from an ion exchange resin to which a metal species is bound comprising contacting the reaction product stream with a basic ion exchange resin such that at least a part of the metal becomes bound to th...  
WO/2002/020440A1
A method is disclosed for enhancing the activity of a particulate Dispersed Active Metal (DAM) catalyst during operation of a reactor wherein the hydrogenation of carbon monoxide to produce a mixture of hydrocarbons is being carried out ...  
WO/2002/009873A2
An aqueous low temperature oxidation (ALTO) process wherein a catalyst or catalyst precursor constituted of a solids support, or powder component, and a metal, or metals component, inclusive of cobalt, is oxidized, reduced and rendered c...  
WO/2002/008362A1
A process to regenerate iron-based hydrogen sulfide sorbents using steam. The steam is preferably mixed with hydrogen-containing gas and/or an inert gas, such as nitrogen. In a preferred embodiemtn, the sorbent is first exposed to the st...  
WO/2002/005951A2
A method of making a heat metal treated silicoaluminophosphate molecular sieve comprising: a) providing a silicoaluminophosphate molecular sieve containing a template; b) mixing a metal containing solution with said silicoaluminophosphat...  
WO/2002/005950A2
Disclosed is a molecular sieve catalyst which contains molecular sieve-containing attrition particles and virgin molecular sieve, the attribution particles having been recycled from a catalyst manufacture process or from a reaction syste...  
WO/2002/006205A1
The invention concerns a method for preparing a fatty substance ester, characterised in that it consists in subjecting to an esterification reaction at least a fatty substance with at least an alcohol compound selected from the group con...  
WO/2002/005956A1
A process for the recovery of rhodium from an organic reaction mixture containing rhodium/phosphite ligand complex, phosphite degradation products and high-boiler organic compounds, wherein A) the organic reaction mixture is subjected to...  
WO/2002/004118A1
The present invention pertains to a catalyst composition comprising at least one non-noble Group VIII metal component, at least two Group VIB metal components, and at least 1 wt.% of a combustible binder material selected from combustibl...  
WO/2002/000340A1
Process for regenerating a Pd catalyst after a homogneously catalyzed C-C coupling reaction in which the Pd catalyst precipitates, is separated from the reaction mixture and subsequently treated with I¿2? or Br¿2?. The Pd catalyst ...  
WO/2002/000341A2
Methods of regenerating a coked catalyst by treatment with a hydrogen-containing gas, where the coke is not removed from the catalyst via combustion with an oxygen-containing gas, are disclosed. The hydrogen-containing gas can be hydroge...  
WO/2001/097969A1
A process for the regeneration of a zeolitic catalyst which is at least partially exhausted by use in the synthesis of optionally substituted methylenedianiline (MDA) and derivatives thereof, or of a mixture of optionally substituted MDA...  
WO/2001/096013A1
A method for reactivating a solid alkylation catalyst is provided which can be performed within a reactor that contains the alkylation catalyst or outside the reactor. Effective catalyst reactivation is achieved whether the catalyst is c...  
WO/2001/094280A1
Fresh catalyst particles are added to a slurry hydrocarbon synthesis reactor and their activity increased by contact with hydrogen in-situ in the slurry in a catalyst activity increasing means, while the reactor is producing hydrocarbons...  
WO/2001/094260A1
A method and apparatus for catalytic production of carbon nanotubes. Catalytic particles are exposed to different process conditions at successive stages wherein the catalytic particles do not come in contact with reactive (catalytic) ga...  
WO/2001/094281A1
Fresh catalyst particles are added to a slurry hydrocarbon synthesis reactor and their activity increased by contact with hydrogen in-situ in the slurry in a catalyst activity increasing means, while the reactor is producing hydrocarbons...  
WO/2001/094013A1
One aspect of the invention provides a rejuvenating and/or cleaning composition for a catalyst of a vehicle catalytic converter, comprising at least one hydrocarbon source and at least one oxygen donor. The inventive composition can also...  
WO/2001/085311A1
The invention relates to a method for converting a substance contained in a gas stream (A). According to said method, the gas stream (A) is supplied to a reaction chamber (2) and the substance (NO) is subjected to the action of a catalyt...  
WO/2001/083408A1
A process for alkylating an alkylatable aromatic compound is disclosed, in which the process includes: (a) contacting the alkylatable aromatic compound and an alkylating agent with an alkylation catalyst under alkylation conditions; and ...  
WO/2001/080995A2
Disclosed is a method of rejuvenating a molecular sieve. The method includes contacting a molecular sieve having a methanol uptake of less than 1, or a catalyst containing molecular sieve having a methanol up of less than 1, with anhydro...  
WO/2001/077507A1
A method for the desulphurisation of an oxidation catalyst (8), arranged in the exhaust line of a diesel internal combustion engine (1), is disclosed, whereby the diesel internal combustion engine (1) is operated at a lambda value $g(l)1...  
WO/2001/074972A2
The invention relates to a process for maintaining heat balance in a fluidized bed catalytic cracking unit. More specifically, the invention relates to a combustion control method capable of maintaining or restoring heat balance by condu...  
WO/2001/072679A1
According to the invention, rhodium is recovered from hydroformylation products (feed material) by thermally processing the feed material in the presence of an adsorbent and, optionally, with the additional action of hydrogen.  
WO/2001/072929A1
A high temperature naphtha desulfurization process with reduced olefin saturation employs a partially spent and low metals content hydrodesulfurization catalyst having from 2-40 % the activity of a new catalyst. The catalytic metals pref...  
WO/2001/068252A2
This invention relates to a process for separating one or more orgnnophosphorus ligand degradation products, one or more reaction byproducts and one or more formylester products from a reaction product fluid comprising one or more unreac...  
WO/2001/068626A1
A method for producing maleic acid anhydride by heterogeneous catalytic gas phase oxidation of hydrocarbons comprising at least four carbon atoms with gases containing oxygen in the presence of a volatile phosphorus bond on a catalyst co...  
WO/2001/068250A2
This invention relates to a process for separating one or more organophosphorus ligand degradation products, one or more reaction byproducts and one or more products from a continuously generated reaction product fluid comprising one or ...  
WO/2001/068247A2
This invention relates to a process for separating one or more products from a reaction product fluid comprising a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, said one or more products, one or...  
WO/2001/066497A1
A method for converting heavy olefins present in a product stream exiting a first reaction zone into light olefins and carbonaceous deposits on a catalyst without separation of the heavy olefins from the product stream exiting the first ...  
WO/2001/058842A1
Fatty alcohol and other organics are extracted from spent copper chromite catalyst by a mixture comprising from 50 to 99 % by weight based on the total weight of organic solvent of a water miscible solvent such as isopropanol, 1 to 50 % ...  
WO/2001/056932A1
The invention relates to a method for separating and recovering rhodium from reaction products of oxosynthesis, especially reaction products containing cobalt. The invention also relates to the reuse of rhodium as a catalyst for hydrofor...  
WO/2001/052982A1
Process for the preparation of a catalyst support material comprising the steps of: (a) subjecting a used titania-on-silica catalyst to a decoking treatment, (b) washing the decoked catalyst with a washing liquid selected from an aqueous...  
WO/2001/047630A1
A baffle-style stripper (14', 132) for an FCC process having a complete or nearly complete coverage of stripping openings (53, 55, 75, 59, 61, 63, 140, 141) over the sloped surface of the baffle will provide improved stripping efficiency...  
WO/2001/047632A1
A method for regenerating catalyzers which contain copper as an active component and which were used in hydrogenation or in aminating hydrogenation of carbonyl compounds or in the amination of alcohols. Said method consists in treating t...  
WO/2001/042176A1
A process for producing vinyl chloride monomer where significant quantities of both ethane and ethylene in input streams to the affiliated reactor where hydrogen chloride in the reactor effluent is essentially fully recovered from the re...  
WO/2001/041926A1
A process of activating a fresh catalyst or regenerating a deactivated catalyst which is used in a hydro-oxidation process, preferably, the hydro-oxidation of an olefin in the presence of oxygen and hydrogen to an olefin oxide. The hydro...  
WO/2001/040407A1
The invention concerns a method for producing aromatic compounds from a hydrocarbon cut using a catalyst which preferably circulates in mobile bed, said method comprising at least the following successive steps carried out at least in a ...  
WO/2001/040408A1
The invention concerns a method for producing aromatic compounds in catalyst mobile bed comprising at least a first step which essentially consists in the dehydrogenation of naphthenes in the presence of hydrogen in a molar ratio (H2)¿1...  
WO/2001/038275A1
A process for the dehydrohalogenation of halogenated alkanes involving contacting a halogenated alkane having three or more carbon atoms with a rare earth halide or rare earth oxyhalide catalyst under process conditions sufficient to pre...  
WO/2001/038273A1
This invention is a process for producing vinyl chloride from an ethylene-containing feed, oxygen, and a chlorine source in the presence of a catalyst. The process permits direct production of vinyl chloride in a single reactor system, a...  
WO/2001/038271A1
An oxidative halogenation process involving contacting a hydrocarbon, for example, ethylene, or a halogenated hydrocarbon with a source of halogen, such as hydrogen chloride, and a source of oxygen in the presence of a catalyst so as to ...  
WO/2001/037993A1
Process to separate a rhodium/phosphite ligand complex and free phosphite ligand from a hydroformylation mixture also containing high boiling hydroformylation compounds by contacting said mixture with a polymeric membrane, wherein said m...  
WO/2001/036352A1
A process is disclosed for regenerating catalyst used in a process for synthesizing hydrocarbons. The synthesis process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintain...  
WO/2001/026811A1
A process for the preparation of a catalyst useful for conducting carbon monoxide hydrogenation reactions, especially Fischer-Tropsch reactions. The steps of the process begin with the activation, or reactivation, of a deactivated cataly...  
WO/2001/025177A1
The invention concerns a method for recovering a co-catalyst of an aqueous phase by treatment with a base and a step which consists in separating the co-catalyst whereby the co-catalyst is isolated from the aqueous phase treated with the...  
WO/2001/021733A1
The sulfur content of liquid cracking products, especially the cracked gasoline, of a catalytic cracking process is reduced by the use of a catalyst having a product sulfur reduction component containing a metal component in an oxidation...  

Matches 601 - 650 out of 2,834