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7585987 Process for producing olefin oxide  
There is disclosed a process for producing an olefin oxide, which is characterized by reacting an olefin with oxygen in the presence of a silver catalyst and 0.2 mole or more of water per mol of...
7563740 Direct epoxidation process  
A catalyst comprising a transition metal zeolite and a noble metal is disclosed. The catalyst is prepared by an extrusion method using a comb-branched polymer as an extrusion aid. The catalyst is...
7550610 Direct epoxidation process  
A process is disclosed for reacting an olefin, hydrogen, and oxygen in a slurry comprising a catalyst and a solvent in a reactor. The gas bubbles in the slurry are in a churn-turbulent flow regime....
7531675 Direct epoxidation process using improved catalyst composition  
Catalysts useful for the direct epoxidation of olefins are disclosed. The catalysts comprise a noble metal, lead, bismuth, and a titanium or vanadium zeolite. The noble metal, lead, and bismuth may...
7531674 Process for producing propylene oxide  
A process for producing propylene oxide, includes the steps of reacting propylene with hydrogen peroxide in the presence of a crystalline titanosilicate catalyst having a pore structure of a...
7514577 Pd- and Pt-substituted polyoxometalates and process for their preparation  
The invention relates to polyoxometalates represented by the formula (A n ) m+ [M y (H 2 O) (p.y) X 2 W 22 O 74 (OH) 2 ] m− or solvates or mixtures thereof, wherein A represents a cation, n is...
7470801 Direct epoxidation process using a mixed catalyst system  
Catalyst mixtures useful for the direct epoxidation of olefins are disclosed. The catalyst mixture comprises a titanium or vanadium zeolite and a supported catalyst comprising a noble metal,...
7456303 Catalyst  
The present invention provides a catalyst containing titanium in bonded form, non-crystalline silicon dioxide and at least one crystalline silicate phase which has a zeolite structure, wherein the...
7453003 Direct epoxidation catalyst and process  
A catalyst comprising a transition metal zeolite, a noble metal, and a thiol is disclosed. The catalyst is used in an epoxidation process comprising reacting an olefin, hydrogen, and oxygen. The...
7432384 Direct epoxidation process  
A process is disclosed for the epoxidation of an olefin with hydrogen and oxygen in the presence of an oxidation catalyst comprising a transition metal zeolite and a polymer-encapsulated noble...
7387981 Direct epoxidation catalyst and process  
A catalyst comprising a transition metal zeolite and a supported noble metal is disclosed. The mean mass diameter of the catalyst is greater than 0.5 mm. The catalyst is formed from transition...
7381675 Direct epoxidation catalyst  
A catalyst comprising a noble metal supported on a diatomaceous earth and a transition metal zeolite is disclosed. The catalyst is used in an epoxidation process comprising reacting an olefin,...
7365217 Oxidation process  
A process is disclosed for reacting an olefin, hydrogen, and oxygen in a reactor in the presence of an epoxidation catalyst comprising a transition metal zeolite and a noble metal to produce a...
7153986 Method for producing propylene oxide  
A method is provided for producing propylene oxide, wherein propylene is reacted with hydrogen peroxide in the presence of an organic solvent and a crystalline titanosilicate catalyst having an MWW...
7138535 Direct epoxidation process  
The invention is a process for epoxidizing an olefin with hydrogen and oxygen in the presence of a catalyst comprising a noble metal and a titanium or vanadium zeolite in a solvent mixture...
7132555 Rod-shaped inserts in reactor tubes  
A process for catalytically reacting a fluid reactant mixture in a multi-tubular reactor system to form a fluid product, whereby the reactant mixture is led through at least one reactor tube...
7122491 Method of increasing the lifetime of a hydro-oxidation catalyst  
A method of increasing the lifetime of a hydro-oxidation catalyst comprising, preferably, gold, silver, or mixtures thereof, and optionally one or more promoters, on a titanium-containing support,...
7105687 Propylene oxide purification and recovery  
In accordance with the invention, propylene oxide is formed by reaction of propylene and hydrogen peroxide or by reaction of propylene, oxygen and hydrogen in methanol solvent, methanol and methyl...
7026492 Direct epoxidation process using modifiers  
The invention is a process for epoxidizing an olefin with hydrogen and oxygen in the presence of a noble metal-containing titanium or vanadium zeolite and a modifier selected from the group...
6984606 Epoxidation catalyst  
Noble metal-containing titanium zeolite catalysts are prepared by reacting a titanium compound, a silicon source, a templating agent, and a noble metal source at a temperature and for a time...
6972337 Epoxidation catalyst  
Titanium or vanadium zeolites are heated at a temperature greater than 400° C., then contacted with water prior to use in olefin epoxidation with hydrogen peroxide.
6958304 Method for regenerating a zeolite catalyst  
A process for the regeneration of a zeolite catalyst which comprises treating the catalyst thermally in the presence of a gas stream at temperatures above 120° C., the weight-based residence time...
6939979 Oxidation process and catalyst  
Ethylene is oxidized by contact at oxidizing conditions with an admixture of a solid particulate catalyst and a solid particulate alkali metal treated inert.
6911563 Reaction method utilizing diaphram type catalyst and apparatus therefor  
A method for carrying out a reaction of one substance capable of being activated by a catalyst with another substance capable of reacting with said one substance activated, characterized in that...
6906208 Mesoporous material and use thereof for the selective oxidation of organic compounds  
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...
6825366 Process for the epoxidation of olefins using gold-containing catalyst  
The invention is directed towards a process for the epoxidation of olefins, using molecular oxygen and hydrogen, characterized in that, as catalyst, a compound comprising gold, preferably in...
6768013 Intrinsically safe oxidation process  
A novel process for the direct oxidation of hydrogen and hydrocarbons is disclosed, where the explosion risks inherent in gas phase oxidations are substantially eliminated. Gaseous oxidation...
6762310 Process for the epoxidation of alkenes and polyoxofluorometalates for use therein  
The invention provides a process for the catalytic epoxidation of an alkene comprising a transition metal substituted polyoxofluorometalate and molecular oxygen with the alkene. The invention also...
6740764 Oxide and method for production thereof  
Oxide comprising at least the elements Si and Ti, at least noncrystalline silicon dioxide and at least one crystalline silicate phase which has at least one zeolite structure, with noncrystalline...
6710194 Epoxidation process  
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...
6624318 Process for the epoxidation of an organic compound with oxygen or an oxygen-delivering compounds using catalysts containing metal-organic frame-work materials  
The present invention relates to a process for the reaction of at least one organic compound with one oxygen-delivering substance, for example a hydroperoxide, in the presence of at least one...
6617465 Process for the epoxidation of olefins  
A process for the catalytic epoxidation of olefins by means of hydrogen peroxide and a titanium zeolite catalyst, wherein the epoxidation reaction is carried out in a reaction system through which...
6610864 Process for the epoxidation of CIS double bonds  
The selective epoxidation of cis double bonds of macrocyclic aliphatic hydrocarbons having 8 to 20 ring carbon atoms occurs by a catalytic process. The macrocyclic aliphatic hydrocarbons may...
6603027 Catalyst based on zelolite, use and epoxidation method in the presence of this catalyst  
The invention relates to a catalyst obtained by deposition of a zeolite of TS-1 type on an inert honeycomb-shaped support which can be used in liquid-phase reactions for the epoxidation of olefins...
6573394 Polyoxofluorometallates and use thereof as catalysts for the epoxidation of alkenes  
The invention provides a process for the catalytic epoxidation of an alkene comprising contacting a transition metal substituted polyoxofluorometalate and molecular oxygen with said alkene.
6500967 Catalyst for use in production of epoxide, method for producing the catalyst, and method for producing epoxide  
To provide an epoxide-production-use catalyst that is suitably used for producing an epoxide by partial oxidation of an unsaturated hydrocarbon, a catalyst in accordance with the present invention...
6441203 Direct epoxidation process using a palladium on niobium-containing support  
The invention is a liquid-phase process for epoxidizing an olefin with hydrogen and oxygen in the presence of a supported catalyst comprising palladium on niobium-containing support. The process...
6429323 Method for continuous production of propylene oxide and other alkene oxides  
Alkene oxides are produced in a continuous integrated two-,step process performed in liquid phase. Step I comprises the oxidation of a secondary alcohol with molecular oxygen to generate hydrogen...
6417378 Direct epoxidation process using pre-treated titanium zeolite  
The invention is a process for epoxidizing an olefin with hydrogen and oxygen in the presence of a catalyst comprising a noble metal and pretreated titanium zeolite. Titanium zeolite pretreatment...
6399794 Direct epoxidation process using carbonate modifiers  
The invention is a process for epoxidizing an olefin with hydrogen and oxygen in the presence of a modifier and a catalyst comprising a noble metal and titanium zeolite. The modifier is (a) calcium...
6376686 Direct epoxidation process  
The invention is an olefin epoxidation process that comprises reacting olefin, oxygen, and hydrogen in a liquid medium in the presence of an epoxidation catalyst in a reactor system comprising a...
6362349 Process for the direct oxidation of olefins to olefin oxides  
A process for the direct oxidation of an olefin by oxygen to the corresponding olefin oxide in the presence of a reducing agent and a catalyst. The catalyst comprises a metal component, such as a...
6348607 Method for oxidizing an organic compound having at least one C-C double bond  
In a process for oxidizing an organic compound containing at least one C—C double bond, or a mixture of two or more thereof, which comprises the step (II) below: (II) reaction of the organic...
6326502 Method for producing epoxides through olefin oxidation with air or oxygen  
The present invention provides a process for the epoxidation of alkenes of the formula (1) ##STR1## where R 1 , R 2 , R 3 and R 4 are, independently of one another, hydrogen, C 1 -C 20 -alkyl,...
6310224 Epoxidation catalyst and process  
In a process for the production of an oxirane compound by reaction of olefins, oxygen and hydrogen using a noble metal on titanium or vanadium silicalite catalyst the improvement wherein the...
6303800 Method for producing propene oxide  
Process for preparing propene oxide, in which a mixture of propene and oxygen or an oxygen-containing gas is reacted at a temperature in the range from 150 to 500° C., in the presence or absence...
6281369 Epoxidation catalyst and process  
The stability of a noble metal/titanium zeolite catalyst is improved by elevated temperature calcination with an oxygen containing gas; the catalyst is useful in epoxidation involving the reaction...
6255499 Process for the hydro-oxidation of olefins to olefin oxides using oxidized gold catalyst  
A process and catalyst for the hydro-oxidation of an olefin having three or more carbon atoms, such as propylene, to form an olefin oxide, such as propylene oxide. The process involves contacting...
6229028 Process for the epoxidation of alkenes  
The invention provides a process for the catalytic epoxidation of alkene comprising contacting a transition metal substituted polyoxometalate and molecular oxygen with alkene.
6194591 Aqueous epoxidation process using modified titanium zeolite  
An olefin epoxidation process is described. The process comprises epoxidizing an olefin with hydrogen peroxide in the presence of a modified titanium zeolite catalyst in water solvent. The titanium...
Matches 1 - 50 out of 145 1 2 3 >