Bizarre Patents
An electrified table cloth for preventing crawling insects from gaining access to the consumer's food or drink.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7741498 | Propylene oxide process A process for making propylene oxide from propylene is disclosed. The process comprises reacting propylene, oxygen, and hydrogen in the presence of a catalyst and a solvent to produce a reaction mixture comprising propylene oxide. Separation of propylene, oxygen, hy... | 06/22/2010 |
| 7700790 | Alkylene oxide process A process is provided for the production of alkylene oxide by catalytic reaction of olefin, hydrogen and oxygen in the presence of promoting buffer salts, the improvement wherein the buffer salts are recovered by electrodialysis and/or crystallization and recycled t... | 04/20/2010 |
| 7687647 | Propylene oxide process A process for making propylene oxide from propylene is disclosed. The process comprises reacting propylene, oxygen, and hydrogen in the presence of a catalyst, a solvent, and a buffer to produce a reaction mixture comprising propylene oxide. Separation of light comp... | 03/30/2010 |
| 7595410 | Direct epoxidation process using improved catalyst composition A process for producing an epoxide comprising reacting an olefin, hydrogen and oxygen in the presence of a catalyst comprising a titanium or vanadium zeolite, palladium, and lead. The process results in significantly reduced alkane by-product formed by the hydrogena... | 09/29/2009 |
| 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 |
| 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 |
| 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 |
| 7223876 | Method of separating an olefin from a gas stream The present invention relates to a method of separating an olefin from a gas stream, said gas stream comprising the olefin and at least one other component, said method comprising (i) compressing and cooling the gas stream; (ii) separating ... | 05/29/2007 |
| 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 |
| 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 |
| 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 containing a fixed bed of solid particulate catalyst and surrounded by a he... | 11/07/2006 |
| 7030255 | Oxidation process with in-situ H202 generation and polymer-encapsulated catalysts therefor Catalysts useful for oxidation reactions are disclosed. The catalysts comprise a titanium zeolite, a transition metal, and a polymer, wherein at least one of the titanium zeolite or transition metal is encapsulated within a thin layer of the polymer. The catalysts a... | 04/18/2006 |
| 6960671 | Process for direct oxidation of propylene to propylene oxide and large particle size titanium silicalite catalysts for use therein 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 in the presence of hydrogen ... | 11/01/2005 |
| 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 of the gas stream over the catalyst during the thermal treatment bein... | 10/25/2005 |
| 6958405 | Polymer-encapsulated titanium zeolites for oxidation reactions Catalysts useful for oxidation reactions are disclosed. The catalysts comprise a polymer-encapsulated titanium zeolite. The catalysts are easy to prepare and use, they are easy to recover and reuse, and they provide good conversions in a variety of important oxidati... | 10/25/2005 |
| 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 based on micropores and mesopores, and at least one catalytically acti... | 06/14/2005 |
| 6888013 | Integrated process for the preparation of olefin oxides The present invention relates to an integrated process for the preparation in continuous of epoxides which comprises: (a) preparing an alcoholic or hydro-alcoholic solution of hydrogen peroxide in a concentration of over 3% by weight, using a gaseous stream containi... | 05/03/2005 |
| 6884898 | Propylene oxide process Propylene oxide is formed by reaction of propylene with molecular oxygen in a high boiling solvent containing slurried solid catalyst, the light components are flashed and the remaining liquid containing slurried catalyst is recycled. ... | 04/26/2005 |
| 6867312 | Propylene oxide process Propylene oxide is formed in a two step reaction wherein in a first step oxygen and hydrogen are reacted in the absence of propylene to form hydrogen peroxide and in a second step propylene is reacted with the formed hydrogen peroxide to form propylene oxide, the sa... | 03/15/2005 |
| 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 nanometer size, on a support material, in which the support material is com... | 11/30/2004 |
| 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 being regulated to provide a weight ratio of dissolved oxygen to dissolve... | 03/23/2004 |
| 6667409 | Process and apparatus for integrating an alkene derivative process with an ethylene process An integrated process and apparatus for integrating an alkene derivative process, such as ethylene oxide process, with an ethylene process so that any ethylene entrapped in the purge stream of the alkene derivative process can be effectively recovered thr... | 12/23/2003 |
| 6534661 | Integrated process and dual-function catalyst for olefin epoxidation The invention discloses a dual-functional catalyst composition and an integrated process for production of olefin epoxides including propylene oxide by catalytic reaction of hydrogen peroxide from hydrogen and oxygen with olefin feeds such as propylene. T... | 03/18/2003 |
| 6525209 | Method of producing epoxides The present invention relates to the preparation of epoxides by the oxidation of olefins using molecular oxygen with the addition of an aldehyde additive, characterized in that the oxidation is performed in compressed carbon dioxide as the solvent, which,... | 02/25/2003 |
| 6498259 | Direct epoxidation process using a mixed catalyst system The liquid-phase epoxidation reaction of an olefin with hydrogen and oxygen in the presence of a catalyst mixture containing a titanium zeolite and a supported catalyst surprisingly produces less ring-opened products such as glycols when performed in the ... | 12/24/2002 |
| 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 exhibits good productivity and selectivity for olefin epoxid... | 08/27/2002 |
| 6441204 | Direct epoxidation process using a mixed catalyst system The invention is a liquid-phase process for epoxidizing an olefin with hydrogen and oxygen in the presence of a catalyst mixture comprising a titanium zeolite and a supported catalyst comprising palladium on niobium-containing support. The process is high... | 08/27/2002 |
| 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 comprises contacting the titanium zeolite with a leaching a... | 07/09/2002 |
| 6403815 | Direct epoxidation process using a mixed catalyst system The liquid-phase epoxidation reaction of an olefin with hydrogen and oxygen in the presence of a catalyst mixture comprising titanium zeolite and a supported catalyst surprisingly shows higher activity toward epoxide production when the supported palladiu... | 06/11/2002 |
| 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 carbonate in the presence of carbon dioxide or (b) ammoni... | 06/04/2002 |
| 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 tank, a tube, a plurality of impellers, and means for inhibi... | 04/23/2002 |
| 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 transition metal oxide, dispersed on a metal ion-exchanged ... | 03/26/2002 |
| 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 compound or the mixture of two or more thereof with a medium co... | 02/19/2002 |
| 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 R1, R2, R3 and R4 are, independently of one another, hydrogen, C1 -C20 -alkyl, C | 12/04/2001 |
| 6323350 | Process for the oxidation of olefins to olefin oxides The present invention relates to a liquid phase process for preparing an olefin oxide from an olefin in a cascade of two or more reactors, in a baffled tank reactor or in a plug flow reactor which process comprises the steps of a) contacting the olefin in... | 11/27/2001 |
| 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 catalyst is doped with a substantially non-reduced metal dopand.... | 10/30/2001 |
| 6307073 | Direct epoxidation process using a mixed catalyst system A catalyst mixture containing a titanium zeolite and a supported gold-containing catalyst is highly selective and productive for transforming olefins to epoxides in the liquid-phase reaction of an olefin, hydrogen, and oxygen. This is particularly surpris... | 10/23/2001 |
| 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 of a catalyst, in a reactor, wherein all or part of the int... | 10/16/2001 |
| 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 of olefin, oxygen and hydrogen.... | 08/28/2001 |
