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Matches 501 - 550 out of 1,815

Document Document Title
WO/2003/006160A1
The present invention provides a process for regenerating a spent aromatics alkylation or transalkylation catalyst comprising a molecular sieve by contacting the spent catalyst with an oxygen-containing gas at a temperature of about 120 ...  
WO/2003/006405A1
A process for producing cumene is provided which comprises the step of contacting benzene and propylene under at least partial liquid phase alkylating conditions with a particulate molecular sieve alkylation catalyst, wherein the particl...  
WO/2003/006363A2
The present invention relastes to a process for preparing zeolites using quaternary ammonium cations having the following formula as structure directing agents: wherein: X is-H, methyl,-F,-C1,-F and C1, okr methoxy; R¿1? and R¿2? are e...  
WO/2003/006376A1
The present invention relates to a process for preparing zeolites using pyrrolidinium cations as structure directing agents.  
WO/2003/006370A1
The present invention relates to new crystalline zeolite SSZ-58 prepared using a N-butyl-N-cyclooctylpyrrolidinium cation or N-propyl-cyclooctylpyrrolidinium cation templating agent, and processes employing SSZ-58 in a catalyst.  
WO/2003/000629A2
In a process for the selective production of meta-diisopropylbenzene, a C¿9?+ aromatic hydrocarbon feedstock containing meta- and ortho-diisopropylbenzene is contacted with benzene under conversion conditions with a catalyst comprising ...  
WO/2002/100535A1
An olefin metathesis catalyst consists essentially of a transition metal or oxide thereof, preferably tungsten oxide, supported on a high purity silica support possessing less than 150 ppm Mg, less than 900 ppm Ca, less than 900 ppm Na, ...  
WO/2002/096550A1
Methods of enhancing the solubility of a fluorinated compound in an organic solvent are provided. In one embodiment, carbon dioxide gas pressure is applied to the solvent at a pressure effective to enhance the solubility of the fluorinat...  
WO/2002/094748A1
Methods using catalysts and reaction conditions to produce signi ficantly improved yields (and thereby higher purity) of olefin metathesis products, with greatly reduced amounts of impurities. These techniques include in one instance red...  
WO/2002/088052A1
A process for the disproportionation of cumene is disclosed which comprises the step of contacting a feed containing cumene, under disproportionation conditions, with a catalyst comprising a molecular sieve, preferably TEA-mordenite. The...  
WO/2002/083609A1
The invention relates to a method for the production of propene from a mixture (M1) essentially consisting of the following: ethylene (component E); hexenes (components H); optionally olefinic hydrocarbons (components Kla) different from...  
WO/2002/081417A1
A process for improved yields of heavier olefins from a substantially narrow range of lighter hydrocarbon feed stock containing olefins in a reaction distillation column comprising feeding a narrow range of hydrocarbon feed stock contain...  
WO/2002/079126A1
The invention pertains to the use of Group 8 transition metal carbene complexes as catalysts for olefin cross-metathesis reactions. In particular, ruthenium and osmium alkylidene complexes substituted with an N-heterocyclic carbene ligan...  
WO/2002/079127A1
A catalytic method is provided for a ring-opening cross-metathesis reaction between a cycloolefinic substrate and a second olefinic reactant, wherein the catalyst used is a transition metal alkylidene complex substituted with an N-hetero...  
WO/2002/079208A2
The invention provides a novel method for synthesizing transition metal carbene complexes useful as olefin metathesis catalysts. The method is a convenient one-pot synthesis in which transition metal carbenes are prepared in high yield f...  
WO/2002/076613A1
The invention provides a method of making a ruthenium or osmium carbene catalyst having an imidazolidine in the presence of an olefin with the application of energy. The resulting metal compound has two carbene ligands, one from the orig...  
WO/2002/066406A1
The invention relates to a method for selective production of linear $g(a)-olefins having a carbon number ranging from 6 20, comprising the following steps: a) reaction of a linear, internal olefin or a mixture of linear, internal olefin...  
WO2001016059A9
A process for partially converting well gas to saleable products on site by disproportionation of the alkanes in the well gas into higher and lower molecular weight alkanes.  
WO/2002/062734A1
A process for producing a monoalkylation aromatic product, such as ethylbenzene and cumene, utilizing an alkylation reactor zone and a transalkylation zone in series or a combined alkylation and transkylation reactor zone.  
WO/2002/060815A1
The invention relates to a novel microporous crystalline material ITQ-19 used in the catalytic conversion of organic compounds, such as, for example, the dewaxing and isodewaxing of paraffins and the disproportionation of toluene. Said m...  
WO/2002/059066A1
Ethylene and hexene-1 are produced from butene-1 by metathesis of butene-1 and isomerization of the hexene-3 produced therein to hexene-1. The initial staring material is a mixed butene stream wherein butene-1 is isomerized to butene-2 w...  
WO/2002/053520A2
The invention relates to a method for producing hydrocarbons having a modified carbon skeleton by reacting aliphatic hydrocarbons a) with themselves, b) with another aliphatic hydrocarbon or c) with aromatic alkyl substituted hydrocarbon...  
WO/2002/051539A1
A new family of crystalline metal oxide compositions have been synthesized. These compositions are described by the empirical formula: A¿n?MM'¿x?M¿y?O¿p? where A is an alkali metal cation, ammonium ion and mixtures thereof, M is niob...  
WO/2002/048077A1
A process for producing an adamantane compound which is a hydrocarbon having an adamantane structure by isomerizing a C¿10? or higher tricyclic saturated hydrocarbon, characterized in that the isomerization is conducted with the aid of ...  
WO/2002/036489A1
A new family of crystalline alumino-silicate zeolites has been synthesized. These zeolites are represented by the empirical formula. Where M is an alkali or alkaline earth metal such as lithium and strontium, R is a nitrogen containing o...  
WO/2002/026671A1
A process for preparing a mixed dialkylbenzene product is disclosed in which a predominant proportion above 60 wt. % of the meta-dialkylbenzene isomer and a very low proportion of the ortho-dialkylbenzene isomer is produced by a liquid-p...  
WO/2002/022262A2
The invention relates to a novel, heterogeneous catalyst which is especially suitable for the metathesis of olefins, in addition to the production and corresponding use of the same. Said catalyst is fixed on an inorganic carrier and cont...  
WO/2002/020535A1
The invention provides a process for the in-situ generation of a metathesis active catalyst of the formula: (I) comprising contacting an NHC carbene with a dimer of the formula [(arene)MX1X]2 and an alkyne of the formula RC=CR1 or RC=C-C...  
WO/2002/016290A2
The invention relates to a method for producing linear $g(a) olefins by means of an isomerising metathetical reaction and ensuing ethenolysis. The method comprises the following steps: i) a C¿4?-C¿10? olefin fraction is introduced into...  
WO/2002/008159A1
The present invention provides a process for producing a monoalkylated aromatic compound, particularly cumene, comprising the step of contacting a polyalkylated aromatic compound with an alkylatable aromatic compound under at least parti...  
WO/2002/002490A2
Processes for converting linear hydrocarbon into normal alpha olefins ('NAOs'). The process comprises a sequence of controlled dehydrogenation followed by ethenolysis. The process is especially applicable to upgrade linear hydrocarbons s...  
WO/2001/072421A1
The present invention relates to catalysts obtainable by reacting a solid phase support functionalised to contain aryl vinyl groups with a ruthenium compound of general formula (I), wherein W is C�6-14?aryl, optionally substituted with...  
WO/2001/070387A1
The invention relates to a method for carrying out a metathesis reaction of unsaturated organic compounds, characterized in that at least one unsaturated organic compound in a liquid or dissolved form is mixed with at least one metathesi...  
WO/2001/066464A2
The present invention relates to new crystalline zeolite SSZ-55 prepared using a phenylcycloalkylmethyl ammonium or N-cyclohexyl-N-(2-methylpropyl)pyrrolidinium cation templating agents.  
WO/2001/064335A2
An aluminophosphate bound silicoaluminophosphate catalyst contains iron, cobalt and/or nickel is useful in a method of making a product including an olefin from a feedstock containing an oxygenate. The method includes contacting an oxyge...  
WO/2001/056960A1
An integrated process of preparing a C¿2-5? alkenyl-substituted aromatic compound using a C¿6-12? aromatic compound and a C¿2-5? alkane as raw materials. The process involves feeding a C¿2-5? alkane, for example ethane, and a C¿2-5?...  
WO/2001/053237A2
There is described a process for the transalkylation of a polycycloalkyl aromatic compound, particularly the transalkylation of dicyclohexylbenzene to produce monocyclohexylbenzene. The process comprises contacting the polycycloalkyl aro...  
WO/2001/049607A1
There is provided macrostructures of porous inorganic material which can have controlled size, shape, and/or porosity and a process for preparing the macrostructures. The macrostructures comprise a three-dimension network of particles of...  
WO/2001/049410A1
The invention relates to a zeolitic catalyst corresponding to an acid form of zeolite ITQ-7 and/or all their possible intergrowths, a method for preparing said catalyst and the utilization thereof for alkylating aromatic compounds with o...  
WO/2001/045841A1
A catalyst composition containing a zeolite and platinum, and a method of preparing such catalyst composition, are disclosed. The thus-obtained catalyst composition is employed in the conversion of a hydrocarbon to aromatics.  
WO/2001/046096A1
The invention provides a homogeneous metathesis process for converting C¿4? to C¿10? olefins in a Fischer-Tropsch derived feedstock to C¿6? to C¿18? olefins, wherein a higher transitions group metal catalyst is used to metathesize a ...  
WO/2001/036368A2
The present invention relates to metathesis syntheses for insect sex-attractant pheromones or their components, such as E-5-decenyl acetate, the major component of the Peach Twig Borer pheromone; (5R, 6S)-6-acetoxy-5-hexadecanolide, the ...  
WO/2001/036359A1
A novel optically active binaphthol derivative with which a higher reaction yield and a higher optical yield (selectivity) can be attained in asymmetric synthesis and which is useful as an asymmetric catalyst, etc.; an asymmetric catalys...  
WO/2001/009067A1
A process for toluene disproportionation which obtains high xylene yields while minimizing ethylbenzene production employs a dual catalyst bed. The first bed employs an acid zeolite, e.g., ZSM-5 which disproportionates toluene and the do...  
WO/2001/004077A1
The present invention relates to a process for manufacturing alkanes, comprising, as main stage, a reaction resulting from bringing methane into contact with at least one other starting alkane (A) in the presence of a catalyst based on a...  
WO/2001/002324A1
The invention provides a high temperature metathesis process for the metathesis of Fischer-Tropsch olefins in the C¿5? to C¿15? range, said metathesis process including the step of subjecting a Fischer-Tropsch olefin feedstock in the C...  
WO/2001/000547A1
This invention relates to a process for the disproportion and transalkylation of toluene and C9?+¿ heavy aromatic hydrocarbons, which has no disadvantage such as the low ability for treating the heavy aromatic hydrocarbons, or the wasti...  
WO/2000/071254A1
There is provided a process for converting hydrocarbons using a catalyst comprising macrostructures having a three-dimensional network of particles comprised of porous inorganic material. The particles of the macrostructures occupy less ...  
WO/2000/071255A1
There is provided a catalyst containing porous macrostructures comprised of: (a) a three-dimensional network of particles of porous inorganic material; and, (b) at least one metal. The particles of the at least one macrostructure occupy ...  
WO/2000/066520A1
The present invention provides a process for producing a monoalkylated aromatic compound, particularly ethylbenzene or cumene, in which a polyalkylated aromatic compound is contacted with an alkylatable aromatic compound in the liquid ph...  

Matches 501 - 550 out of 1,815