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| Number | Title | Issue Date |
| 8217191 | Process for integrated co-production of hydrogen peroxide and epoxidized esters A process for the integral production and reactive consumption of hydrogen peroxide combines oxidation of a high-boiling secondary alcohol to form hydrogen peroxide and the ketone analog, recycle of a hydrogenated ketone/alcohol stream to the oxidation step, and epo... | 07/10/2012 |
| 8134018 | Process for the epoxidation of an olefin with improved energy balance The invention relates to a process for the epoxidation of an olefin comprising (a) reacting the olefin with hydrogen peroxide in the presence of methanol as solvent in at least two reaction stages to obtain a mixture (M-a) comprising olefin oxide, unrea... | 03/13/2012 |
| 8124797 | Epoxidation process This invention is a process for producing propylene oxide. The process comprises first contacting a titanium zeolite with a reaction feed comprising propylene, hydrogen peroxide, tertiary butyl alcohol, and water to produce a product stream comprising propylene, pro... | 02/28/2012 |
| 8124798 | Direct epoxidation catalyst and process A catalyst, useful for the direct epoxidation of olefins, is disclosed. The catalyst comprises palladium nanoparticles, support nanoparticles, and a titanium zeolite having a particle size of 2 microns or greater. The palladium nanoparticles are deposited on the sup... | 02/28/2012 |
| 8058459 | Process for the manufacture of 1,2-epoxy-3-chloropropane 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 least one liquid phase, in whi... | 11/15/2011 |
| 8022233 | Process for producing glycidyl 2-hydroxyisobutyrate and composition containing the product An efficient process for producing glycidyl 2-hydroxyisobutyrate useful as a reactive diluent is provided. When glycidyl 2-hydroxyisobutyrate is produced by reacting allyl 2-hydroxyisobutyrate with hydrogen peroxide, a solution in which allyl 2-hydroxyisobutyrate is... | 09/20/2011 |
| 7994348 | Process for producing propylene oxide A process for producing propylene oxide, which comprises: supplying a solution containing a peroxide selected from the group consisting of hydrogen peroxide and organic hydroperoxide having 2 or more of carbon atoms as a raw materi... | 08/09/2011 |
| 7973183 | Process for the preparation of an olefin oxide The present invention relates to a continuous process for the preparation of an olefin oxide wherein an olefin is reacted with a hydroperoxidein the presence of a catalyst, and wherein the reaction which is carried out in at least three reactors operated in parallel... | 07/05/2011 |
| 7956204 | Process for the oxidation of hydrocarbons utilizing shaped binderless TS-1 zeolite catalyst A process for oxidation of hydrocarbon, comprising contacting said hydrocarbon with hydrogen peroxide in the presence of a catalytically effective amount of crystalline, titanosilicate zeolite TS-1 catalyst for a time and at a temperature effective to oxidize said h... | 06/07/2011 |
| 7915434 | Method for producing propylene oxide A method for producing propylene oxide comprising a step of reacting hydrogen peroxide with propylene in the presence of an epoxidation catalyst in a liquid phase to produce propylene oxide and a step of recovering a recyclable constituent in a vent gas generated in... | 03/29/2011 |
| 7834202 | Process for the manufacture of 1,2-epoxy-3-chloropropane 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 comprises less than 2000 ppm by... | 11/16/2010 |
| 7812184 | Production method of optically active epoxy compound, complex used for the method and production method of the complex [Problem] To provide a production method of optically active epoxy compound, and a complex used for the production method and a production method of the complex. [Means for solving the problem] The skeleton that is necessary for expressing a high catalyst act... | 10/12/2010 |
| 7786317 | Process for epoxidizing propene The present invention provides a process for the epoxidation of propene which comprises reacting propene with hydrogen peroxide in the presence of methanol as solvent and a titanium zeolite catalyst, the process further comprising separating propylene oxide from the... | 08/31/2010 |
| 7700789 | Heterogeneous catalyst and process for producing oxirane compound with the catalyst Process for producing an oxirane compound includes treating with hydrogen peroxide in the presence of either an olefin oxidation catalyst prepared from an organic compound or a polymer compound of formula (1) a tungstic aci... | 04/20/2010 |
| 7696366 | Production process of bifunctional epoxy monomer by selective oxidation of diolefin compound There is provided a novel method for producing a bifunctional epoxy monomer which comprises reacting diolefin with a hydrogen peroxide aqueous solution, in the presence of molybdenum or tungsten oxide as a catalyst to selectively epoxidize a double bound at a specif... | 04/13/2010 |
| 7649101 | Process for selective oxidation of olefins to epoxides A process for the selective oxidation of olefins to epoxides comprising the step of contacting the olefin (propylene) with an oxidant (hydrogen peroxide) in the presence of a Lewis acid oxidation catalyst (MTO), organic base (pyridine or its N-oxide), in a solvent s... | 01/19/2010 |
| 7608728 | Method for producing propylene oxide Process for preparing propylene oxide, which comprises at least the steps (i) and (ii): (i) providing a catalyst comprising at least one porous oxidic material; (ii) reacting propene with a hydroperoxide in at leas... | 10/27/2009 |
| 7544819 | Process for the asymmetric epoxidation of olefins The present invention relates to a catalyst based on ruthenium complexes and to a process for the asymmetric epoxidation of olefins using catalysts based on ruthenium complexes. ... | 06/09/2009 |
| 7528268 | Process for the preparation of lactones or epoxides The present invention relates to a process for the oxidation, in an inert solvent, of a non-aromatic or non-enonic ethylenic bond or of a non-conjugated cyclic ketones into the corresponding epoxides, respectively lactone, using H2O2 as oxidant... | 05/05/2009 |
| 7528269 | Process for oxidizing organic compounds This invention is a process for oxidizing an organic compound with a hydrogen peroxide solution produced by reacting hydrogen and oxygen in the presence of an oxidation catalyst. The hydrogen peroxide is produced by reacting hydrogen and oxygen in a solvent in the p... | 05/05/2009 |
| 7501532 | Process for producing hydrogen peroxide A process comprising reacting hydrogen and oxygen in the presence of a noble metal, a thiol or thiolate, and a solvent is disclosed. The thiol or thiolate improves the hydrogen peroxide yield. The produced hydrogen peroxide may be used to oxidize organic compounds i... | 03/10/2009 |
| 7482478 | Diastereoselective epoxidation of allylically substituted alkenes using metalloporphyrin catalysts Diastereoselective epoxidation of allylically substituted alkenes using metalloporphyrins as catalyst provides high trans-selectivities (i.e., trans-:cis-epoxide ratio). A diversity of cycloalkenes bearing different allylic substituents are shown to be efficiently e... | 01/27/2009 |
| 7442817 | Process for the preparation of olefin oxides A process in continuous is described for the preparation of oxides of olefins by the direct epoxidation of an olefin with hydrogen peroxide, or compounds capable of producing hydrogen peroxide under the reaction conditions, in a solvent medium, in the presence of a ... | 10/28/2008 |
| 7432402 | Partial oxidation using molecular sieve SSZ-74 The present invention relates to new crystalline molecular sieve SSZ-74 prepared using a hexamethylene-1,6-bis-(N-methyl N-pyrrolidinium) dication as a structure-directing agent, and processes employing SSZ-74 in a catalyst. ... | 10/07/2008 |
| 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 metal catalyst. The noble metal catalyst comprises a noble metal and an i... | 10/07/2008 |
| 7408074 | Method for producing an alkene oxide Process for preparing an alkene oxide, which comprises at least the steps (i), (ii) and (v): (i) providing a stream S1 comprising compressed, liquid alkene; (ii) depressurizing at least part of the stream S1 with absorption of heat and with... | 08/05/2008 |
| 7408073 | Returning an olefin which is not reacted during the oxidation of olefins Process for the continuous recirculation of the olefin which has not been reacted in the epoxidation of olefins by means of hydroperoxide to give oxiranes and is present in the offgas stream formed during the epoxidation, which comprises the steps (i) to (iii) ... | 08/05/2008 |
| 7378536 | Method for producing propylene oxide Process for preparing propylene oxide, which comprises at least the steps (iii) and (iv) (iii) separating off propylene oxide from a mixture (M1) comprising propylene oxide and at least one solvent by distillation in a distillation column, giving a bott... | 05/27/2008 |
| 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 product stream comprising an epoxide and an alkane. The alkane is separat... | 04/29/2008 |
| 7364718 | Process for the production of hydrogen peroxide Hydrogen peroxide is produced by reacting hydrogen and oxygen in the presence of a noble metal catalyst in a liquid reaction medium, the reaction being performed in the presence of a sulfuric acid alkyl ester. In the presence of sulfuric acid alkyl esters the noble ... | 04/29/2008 |
| 7357909 | Process for producing hydrogen peroxide A process for producing hydrogen peroxide from hydrogen and oxygen in the presence of a noble metal and a cationic polymer comprising a halogen-containing anion is disclosed. The cationic polymer improves hydrogen peroxide yield, and it can be easily recycled. ... | 04/15/2008 |
| 7351587 | Method for the online determination of hydrogen peroxide A process for the on-line determination of the hydrogen peroxide content of a mixture obtained in a chemical reaction comprises at least the following steps: (1) admixing the mixture comprising hydrogen peroxide with at least one reagent which is capabl... | 04/01/2008 |
| 7348444 | Process for the production of an olefin oxide A process for the production of an olefin oxide, which process comprises reacting a feed comprising an olefin and oxygen in the presence of a silver-containing catalyst, wherein before the catalyst has reached an advanced stage of ageing the reaction temperature is ... | 03/25/2008 |
| 7323578 | Process for manufacturing an oxirane Process for manufacturing an oxirane by reaction between an olefin and a peroxide compound in a reactor containing a liquid phase, in the presence of water, one or more organic solvents, a catalyst and one or more compounds for increasing the selectivity of the cata... | 01/29/2008 |
| 7323154 | Titanosilicate, process for its production, and its use in producing oxidized compound A titanosilicate represented by the following compositional formula (1), wherein in the infrared absorption spectrum measured in the dehydrated state, the absorption spectrum has an absorption band having a relative maximum value at 930±15 cm−1: | 01/29/2008 |
| 7320779 | Process for manufacturing an oxirane A plant for producing hydrogen peroxide and using the hydrogen peroxide so made for manufacturing an oxirane by reaction between an olefin and said hydrogen peroxide, wherein the hydrogen peroxide is manufactured by an alkylanthrahydroquinone (AO) process in which a... | 01/22/2008 |
| 7301038 | Process for preparing alkylene oxide (epoxid, oxirane) A process for the preparation of alkylene oxide, which process involves passing a feed containing an organic hydroperoxide and alkene through a bank of at least two serially connected reactors containing epoxidation catalyst and withdrawing a product stream having a... | 11/27/2007 |
| 7294727 | Catalyst preparation The invention relates to a process for the preparation of an epoxidation catalyst which process involves (a) drying a silica gel carrier having a weight average particle size of from 0.1 mm to 2 mm at a temperature of from more than 200° C. to 300° C., and (b) con... | 11/13/2007 |
| 7288237 | Epoxidation catalyst Titanium or vanadium zeolite catalysts are prepared by reacting a titanium or vanadium compound, a silicon source, a templating agent, a hydrocarbon, and a surfactant at a temperature and for a time sufficient to form a molecular sieve. The catalyst is useful in ole... | 10/30/2007 |
| 7276464 | Titanium zeolite catalysts Catalysts useful for epoxidizing olefins are disclosed. The catalysts comprise a vinylpyridine polymer and a titanium zeolite. Preferably, the vinylpyridine polymer encapsulates the titanium zeolite. The catalysts are easy to prepare and use, they are easy to recove... | 10/02/2007 |
