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| Number | Title | Issue Date |
| 7999125 | Method for producing propylene oxide There is disclosed a method for producing propylene oxide, which includes: reacting propylene, oxygen, and hydrogen in the presence of a noble metal catalyst and a titanosilicate catalyst in a liquid phase containing a polycyclic compound, which is unsubstituted or ... | 08/16/2011 |
| 7994349 | Process for producing of epoxy compound An object of the present invention is to provide an efficient process for producing an epoxy compound from olefin, oxygen and hydrogen. The process of the present invention is characterized in that an olefin, oxygen and hydrogen are reacted in a liquid phase in the ... | 08/09/2011 |
| 7973184 | Method for producing propylene oxide Disclosed is a method for producing propylene oxide wherein propylene is directly oxidized with oxygen, as required, water and a catalytic amount of hydrogen in a gas phase in the presence of a gold cluster catalyst supported on an alkali-treated titanosilicalite or... | 07/05/2011 |
| 7863467 | Method for producing propylene oxide The present invention relates to a method for producing propylene oxide, characterized in that peroxide is reacted with propylene in the presence of a titanosilicate catalyst which has an X-ray diffraction pattern of the values indicated below and is represented by ... | 01/04/2011 |
| 7863468 | Process for producing propylene oxide The present invention relates to a process for producing propylene oxide comprising (I) reacting propene with hydrogen peroxide in the presence of a catalyst to give a mixture (GI) comprising propylene oxide, unreacted propene, and oxygen; (II) separating propylene ... | 01/04/2011 |
| 7786318 | Catalyst preparation Titanium silicallite crystals useful as catalyst for the production of propylene oxide are prepared by forming a solution of a silicon component, a titanium component and a template, the mol ratio of template to silicon component being 0.25 or less and heating the s... | 08/31/2010 |
| 7767835 | Direct epoxidation process using improved catalyst A supported catalyst and a catalyst mixture, useful for the direct epoxidation of olefins, are disclosed. The supported catalyst comprises a noble metal, lead, and a carrier that has been treated by contacting with nitric acid. The catalyst mixture comprises a titan... | 08/03/2010 |
| 7696367 | Direct epoxidation process using a mixed catalyst system The invention is a process for epoxidizing an olefin with hydrogen and oxygen in the presence of a catalyst mixture containing a titanium or vanadium zeolite and a supported catalyst comprising palladium, gold, and an inorganic oxide carrier. Prior to its use in the... | 04/13/2010 |
| 7671222 | Direct epoxidation process using a mixed catalyst system The invention is a process for epoxidizing an olefin with hydrogen and oxygen in the presence of a catalyst mixture containing a titanium or vanadium zeolite and a supported catalyst comprising palladium, rhenium and a carrier. The process results in significantly r... | 03/02/2010 |
| 7649102 | Propylene oxide process A process for making propylene oxide from propylene is disclosed. Propylene, hydrogen, and oxygen are reacted in a slurry comprising a catalyst and a solvent to produce a gaseous product stream and a liquid product stream. The gaseous product stream is contacted wit... | 01/19/2010 |
| 7645892 | Reaction system Reaction gases such as hydrogen, oxygen and propylene are reacted in a slurry of solid catalyst in solvent, the reaction being carried out in a series of separate zones with intermediate removal of the exothermic heat of reaction by indirect heat exchange. ... | 01/12/2010 |
| 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. The process gives improved yield and operational and maintenance adv... | 06/23/2009 |
| 7541479 | 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 having a column and at least one side arm. The column is operated in a churn-turbulent flow regime. The slurry is circulated through the ... | 06/02/2009 |
| 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 12-oxygen-membered ring or more in an organic solvent as a medium capable o... | 05/12/2009 |
| 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 be supported on the titanium or vanadium zeolite. The catalyst may a... | 05/12/2009 |
| 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, bismuth, and a carrier. The invention includes a process for producing an e... | 12/30/2008 |
| 7470800 | 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... | 12/30/2008 |
| 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 non-crystalline silicon dioxide is applied to at least one of the cry... | 11/25/2008 |
| 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 presence of a thiol in the catalyst reduces the formation of alkanes fr... | 11/18/2008 |
| 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 |
| 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 metal zeolite particles and the supported noble metal particles each havi... | 06/17/2008 |
| 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, hydrogen, and oxygen. The diatomaceous earth is readily available and may... | 06/03/2008 |
| 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 |
| 7361623 | Trimerisation and oligomerisation of olefins using a chromium based catalyst The invention provides a mixed heteroatomic ligand for an oligomerisation of olefins catalyst, which ligand includes at least three heteroatoms, of which at least one heteroatom is nitrogen and at least two heteroatoms are not the same. The invention also provides a... | 04/22/2008 |
| 7332640 | Light hydrocarbon separation using 8-member ring zeolites The present invention is related to a method for kinetically separating a light hydrocarbon mixture comprising at least two components by preferentially adsorbing a first component on a zeolite adsorbent comprising 8-member rings of tetrahedra as the pore opening co... | 02/19/2008 |
| 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 |
| 7300904 | Trimerisation and oligomerisation of olefins using a chromium based catalyst The invention provides a mixed heteroatomic ligand for an oligomerisation of olefins catalyst, which ligand includes at least three heteroatoms, of which at least one heteroatom is sulfur and at least 2 heteroatoms are not the same. The invention also provides a mul... | 11/27/2007 |
| 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 |
| 7273826 | Epoxidation catalyst The invention is a catalyst comprising a titanium or vanadium zeolite, a binder, and zinc oxide, wherein the catalyst is preparing an aqueous mixture of the zeolite, a binder source, and a zinc oxide source, and subjecting the mixture to rapid drying. The catalyst i... | 09/25/2007 |
| 7271117 | Epoxidation catalyst Noble metal-containing titanium or vanadium zeolite catalysts are prepared by adding a noble metal source to a titanium or vanadium zeolite that contains templating agent used in the preparation of the zeolite, and then removing the templating agent to form the nobl... | 09/18/2007 |
| 7271116 | 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 non-crystalline silicon dioxide is applied to at least one of the cry... | 09/18/2007 |
| 7256149 | Catalyst regeneration process Used noble metal-containing titanium zeolite catalysts, that have been employed in the liquid-phase epoxidation of olefins with hydrogen and oxygen in the presence of a buffer, are regenerated by heating the used catalyst at a temperature of at least 250° C. in the... | 08/14/2007 |
| 7238817 | Direct epoxidation process A process is disclosed for reacting an olefin, hydrogen, and oxygen in a reactor in the presence of a catalyst comprising a transition metal zeolite and a noble metal to produce a reaction mixture comprising an epoxide and acidic byproducts. A portion of the reactio... | 07/03/2007 |
| 7232783 | Propylene oxide catalyst and use A process is provided for the production of a noble metal on TS-1 catalyst useful for the production of propylene oxide wherein TS-1 from hydrothermal crystallization has noble metal dispersed thereon, the resulting material is spray dried and template used in the c... | 06/19/2007 |
| 7220870 | Hydrolytic kinetic resolution of cyclic substrates The present invention relates to a process for stereoselective or regioselective chemical synthesis which generally comprises reacting a nucleophile and a chiral or prochiral cyclic substrate in the presence of a non-racemic, chiral catalyst to produce a stereoisome... | 05/22/2007 |
| 7182932 | Catalyst preparation A TS-1 catalyst suitable for the production of oxirane compounds is prepared by subjecting conventionally formed TS-1 to a size reduction treatment such as milling such that the average particle size weighted by volume of the TS-1 is reduced to less than 10 microns ... | 02/27/2007 |
| 7169735 | Catalyst and process for preparing the same The object of the present invention is to provide a catalyst that is highly active and capable of maintaining its activity for a long period of time even in a high-temperature environment. The present invention is a catalyst including: a porous carrier which is comp... | 01/30/2007 |
| 7153987 | Process for making silver based epoxidation catalysts and process for preparing an olefin oxide 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 extrusion aid and/or optionally a ... | 12/26/2006 |
| 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 structure containing Ti, the Ti having been incorporated during crys... | 12/26/2006 |
| 7148174 | Non-metallocene catalyst system The present invention describes a novel group of specific transition metal compounds, referred to as nonmetallocene compounds, and catalyst systems prepared therefrom. These catalyst systems which have become obtainable for the first time are suitable for the polyme... | 12/12/2006 |
