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WO/2004/067523A1 |
Propylene oxide is produced by liquid phase reaction of propylene oxygen and hydrogen in contact with a solid epoxidation catalyst at elevated temperature and pressure, the reaction conditions being regulated to provide a weight ratio of...
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WO/2004/062777A2 |
The present invention relates to a silver-containing catalyst system, which can be applied for the reaction of substrates with at least one C-C-double bond with at least one oxygen-containing or oxygen-supplying component with formation ...
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WO/2004/058667A1 |
A process for producing cumene, characterized by subjecting cumyl alcohol and hydrogen to the action of a dehydration catalyst to obtain a mixture comprising the &agr -methylstyrene and water generated and hydrogen and subjecting the mix...
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WO/2004/058737A1 |
A method of oxidizing carbon-carbon double bonds in which the conversion of a compound having a carbon-carbon double bond is inhibited and the compound remaining unreacted is separated from the reaction product and then used again in the...
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WO/2004/056476A1 |
A method for producing a titanium-containing silicon oxide catalyst satisfying all of the requirements (1) to (3): (1) it has an average pore diameter of 10 Å or more, (2) the pores having a pore diameter of 5 to 200 Å account for 90 %...
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WO/2004/056453A1 |
Process for remediation of a fluid contaminated with alkylene oxide, comprising contacting the contaminated fluid with an aqueous absorbent to yield a fat absorbent having absorbed fluid, conferring intimate contact of fat absorbent and ...
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WO/2004/052537A1 |
A process for treating organic compounds includes providing a composition which includes a substantially mesoporous structure of silica containing at least 97% by volume of pores having a pore size ranging from about 15 Å to about 30Å ...
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WO/2004/050233A1 |
Process for the preparation of an epoxidation catalyst, which process comprises impregnating a silicon containing carrier with a gas stream consisting of titanium halide, and process for the preparation of alkylene oxide with the help of...
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WO/2004/048355A1 |
The present invention relates to a process for the purification of a crude propene oxide containing methanol and acetaldehyde by a continuously operated extractive distillation using an extraction solvent lowering the volatility of metha...
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WO/2004/048353A1 |
Process for the manufacture of 1,2-epoxy-3-chloropropane by reaction between allyl chloride and hydrogen peroxide in the presence of a catalyst and in the possible presence of at least one solvent in an epoxidation medium comprising at l...
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WO/2004/048354A1 |
The present invention refers to a process for the catalytic epoxidation of olefins in the presence of a titanium containing zeolite catalyst and a polar solvent whereby the deactivation of the catalyst upon recycling of the solvent has b...
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WO/2004/046102A2 |
Novel catalysts comprised of graphitic nanostructures. The graphitic nanostructure catalysts are suitable for catalyzing reactions such as oxidation, hydrogenation, oxidative-hydrogenation, and dehydrogenation.
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WO/2004/043941A1 |
Process for the manufacture of 1,2-epoxy-3-chloropropane by reaction between allyl chloride and hydrogen peroxide in the presence of a catalyst and in the possible presence of at least one solvent, in which the allyl chloride employed co...
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WO/2004/041429A1 |
The invention relates to a catalyst containing manganese in elemental or combined form and an element selected from the group consisting of lithium, sodium, potassium, rubidium, caesium, beryllium, magnesium, calcium, strontium, barium a...
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WO/2004/039496A1 |
The present invention provides a process for preparing an olefin oxide by reacting an olefin having at least three carbon atoms with oxygen in the presence of a catalyst composition containing silver and an alkali metal promoter deposite...
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WO/2004/039497A2 |
The present invention provides an improved oxidation catalyst composition containing a catalytically effective amount of silver and a rubidium promoter deposited on a carrier, which rubidium metal promoter provides a quantity of rubidium...
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WO/2004/039790A1 |
The invention provides a catalyst composition containing silver, a promoter containing potassium and a promoter containing rhenium deposited on a carrier, wherein said potassium promoter provides potassium at a concentration of up to 120...
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WO/2004/037802A1 |
The invention relates to a method for continuously returning an olefin which has not been reacted with hydroperoxide in order to form oxiranes during the epoxidation of olefins. Said olefin is contained in the flow of waste gas which is ...
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WO/2004/037390A1 |
The invention relates to a method for continuously returning an olefin which has not been reacted with hydroperoxide in order to form oxiranes during the oxidation of olefins. Said olefin is contained in the flow of waste gas which is pr...
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WO/2004/037803A1 |
The invention relates to a continuous method for the epoxidation of olefins with hydroperoxide, characterised in that epoxidation is carried out in a reactor which contains at least one catalyst suspended in a liquid phase. The catalyst ...
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WO/2004/035559A1 |
A process for the production of an oxirane compound by reaction of an olefin with a hydroperoxide reactant in the presence of a solid epoxidation catalyst, wherein the olefin and hydroperoxide reactants are first reacted in at least two ...
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WO/2004/035557A1 |
The invention relates to a catalyst containing gold in an elementary or bound form and molybdenum in oxidation step +VI, in addition to a method for oxidation of a hydrocarbon which contains at least one double bond to form an epoxide, c...
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WO/2004/035558A1 |
Epoxy resin compositions represented by the general formula (I) or (II), products of curing of the compositions, and a process for the preparation of the epoxy compounds through epoxidation with an organic percarboxylic acid: (I) (II) wh...
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WO/2004/031107A1 |
Disclosed is a method for producing at least one partial propylene oxidation and/or ammoxidation product, according to which the propylene is produced from raw propane by means of dehydration and is subjected to a heterogeneously catalyz...
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WO/2004/031106A1 |
Disclosed is a method for producing at least one partial propylene oxidation and/or ammoxidation product, according to which the propylene is produced from raw propane by means of dehydration and is subjected to a heterogeneously catalyz...
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WO/2004/030813A1 |
The invention relates to a process for preparing a catalyst which involves (a) preparing a paste having a uniform mixture of at least one alkaline earth metal carbonate; a liquid medium; a silver bonding additive; and, at least one extru...
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WO/2004/028962A1 |
The present invention refers to an aqueous hydrogen peroxide solution comprising: i) less than 50 wppm alkali metals, alkaline earth metals or combinations thereof in total, irrespective whether the alkali or alkaline earth metals are pr...
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WO/2004/029032A1 |
The present invention refers to a continuos process for the epoxidation of olefins with hydrogen peroxide in presence of a heterogeneous catalyst promoting the epoxidation reaction, whereby the aqueous reaction mixture comprises: i) an o...
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WO/2004/026852A1 |
Large crystals of titanium silicalite or intergrowths of intergrown smaller crystals, having a mean particle size greater than 2 µm, have been found catalytically effective at commercially reasonable rates for the epoxidation of olefins...
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WO/2004/026473A1 |
A material especially useful for the selective oxidation of hydrocarbons and-other organic compounds includes a non-crystalline, porous inorganic oxide having at least 97 volume percent mesopores based on micropores and mesopores, and at...
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WO/2004/026466A1 |
Used titanium-containing silicon oxide catalysts are regenerated by heating the used catalyst at a temperature of at least 400 °C in the presence of a oxygen-containing gas stream, followed by impregnation with a titanium source, and th...
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WO/2004/026467A1 |
The present invention relates to a process for treating a solid material containing at least one zeolite and being at least partly crystalline or treating a shaped body obtained from said solid material wherein said solid material or sha...
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WO/2004/026469A1 |
A method for making a chiral transition metal-ligand catalyst complex that is active in catalyzing stereoselective ring opening reactions includes contacting an asymmetric tetradentate ligand, in an excess of a Bronsted acid, with a salt...
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WO/2004/024321A1 |
The present invention relates to the manufacture of solid materials or shaped bodies containing at least one zeolite and being at least partly crystalline. Furthermore, the present invention relates to the solid materials or shaped bodie...
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WO/2004/020423A1 |
The invention relates to an integrated method for synthesising propylene oxide, said method comprising at least the following steps: (i) dehydrogenation of propane to obtain a partial stream T (0), which contains at least propane, propen...
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WO/2004/020429A1 |
A method for stereoselective chemical synthesis, includes the steps of: (A) reacting a nucleophile and a chiral or prochiral cyclic substrate, said substrate comprising a carbocycle or a heterocycle having a reactive center susceptible t...
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WO/2004/018088A1 |
A process for absorbing propylene from a gaseous propylene oxide process purge stream wherein propane liquid is used to absorb the propylene.
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WO/2004/016585A1 |
A propylene oxide/styrene monomer aqueous purge stream is contacted with a catalyst at conditions effective to decompose peroxides contained therein, and oxygen formed by the decomposition swept from the decomposition with a nitrogen vap...
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WO/2004/014551A2 |
An immobilised nitrogen-containing ligand is described comprising the reaction product of a compound of formula (I) wherein R5, R6, R7 and R8 are independently hydrogen, a saturated or unsaturated C1-C10 alkyl group, an aryl group, a ure...
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WO/2004/013116A1 |
The invention relates to a method for producing oxirans by reacting an organic compound with a hydroperoxide in the presence of a solvent and a catalyst. Said method comprises at least the steps (i) to (iii): (i) reaction of the hydroper...
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WO/2004/013076A1 |
A process for preparing an allyl ether including reacting (a) a phenolic compound with (b) an allyl carboxylate or an allyl carbonate in the presence of (c) a transition metal or rare earth metal catalyst complexed with at least one stro...
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WO/2004/009572A1 |
The invention relates to a method for the continuous distillation of the solvent used in oxirane synthesis by reaction of a hydroperoxide with an organic compound, characterised in that the mixture arising after the synthesis and subsequ...
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WO/2004/009567A1 |
The invention relates to a method for the continuous purification by distillation of methanol, used as a solvent in the synthesis of propylene oxide by the reaction of a hydroperoxide with propylene, with the simultaneous isolation of th...
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WO/2004/009568A1 |
The invention relates to a method for the continuous production of propylene glycols, characterised in comprising steps (i) to (iii): (i) reaction of propylene with hydrogen peroxide to give propylene oxide with propylene glycols obtaine...
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WO/2004/009204A1 |
The invention relates to a continuously operated method for pure distillation of oxirane arising during oxirane synthesis by reacting hydroperoxide with an organic compound, characterised in that the raw oxirane is separated in a separat...
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WO/2004/009570A1 |
A process for producing oxidized organic chemical products from various organic chemical feedstocks utilizing as oxidant hydrogen peroxide (H202) produced by noble metal nanocatalysis with high selectivity at low hydrogen concentration. ...
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WO/2004/009571A1 |
The invention relates to a continuous method of purification by distillation of 1,2-propylene glycol that accumulates as a by-product during the synthesis of propylene oxide. Said method is characterised in that the mixture that is produ...
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WO/2004/009566A1 |
The invention relates to a method for the continuous purification by distillation of methanol, used as a solvent in the synthesis of propylene oxide by the reaction of a hydroperoxide with propylene and the simultaneous isolation of the ...
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WO/2004/009569A1 |
The invention relates to a continuous method for the intermediate separation of the oxirane produced by the reaction of a hydroperoxide with an organic compound, characterised in that the product mixture generated during the synthesis is...
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WO/2004/007369A1 |
The invention relates to a method for concentrating an at least partially crystalline solid containing at least one zeolite in a mixture, said mixture containing at least one auxiliary agent, for example a template compound, and the cite...
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