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| Number | Title | Issue Date |
| 7989385 | Process of activation of a palladium catalyst system Improved processes for activating a catalyst system used for the reduction of nitrogen oxides are provided. In one embodiment, the catalyst system is activated by passing an activation gas stream having an amount of each of oxygen, water vapor, nitrogen oxides, and ... | 08/02/2011 |
| 7473665 | Exhaust gas-purifying catalyst system An exhaust gas-purifying catalyst system is provided with a plurality of catalyst layers including a first and a second catalyst layers, supported on a support structure. The first catalyst layer comes into contact with an exhaust gas stream firstly among the plural... | 01/06/2009 |
| 7431910 | Process for preparing zirconium-cerium-based mixed oxides A process for preparing zirconium-cerium-based mixed oxides which comprises reacting an alkali with an aqueous solution of a zirconium salt containing 0.42-0.7 mole of sulphate anion (SO42−) per mole of zirconium cation at a temperature of no... | 10/07/2008 |
| 7431904 | Catalyst support material, catalysts prepared therefrom and process for the treatment of a flue gas The present invention relates to a catalyst support material and catalysts made therefrom having improved resistance towards erosion. The catalyst support contains at least 20% by weight of TiO2 being present mainly in the anatase form. Furthermore... | 10/07/2008 |
| 7396518 | High-temperature denitration catalysts and processes for preparing same The present invention provides a method of high-temperature denitration characterized in that NOx in an exhaust gas is reduced at 450° to 800° C. using ammonia as a reducing agent in the presence of a catalyst which comprises zirconium oxide and SO3 or ... | 07/08/2008 |
| 7396945 | Method of preparing tetrahydrofuran The present invention relates to a process for preparing tetrahydrofuran from 1,4-butandiol. According to the process in the present invention, a metal sulfate catalyst selected from the group consisting of aluminum sulfate, nickel sulfate, ferrous sulfate and chrom... | 07/08/2008 |
| 7393809 | Catalyst for purification of diesel engine exhaust gas This invention provides a new catalyst for purification of diesel engine exhaust gas comprising a carrier of at least one sulfur-resistant refractory oxide and at least one catalytic metal, wherein at least one solid acid and/or sulfuric acid is carried on the carri... | 07/01/2008 |
| 7371706 | Catalyst for removing hydrocarbons from exhaust gas and method for purification of exhaust gas A catalyst for removing hydrocarbons from exhaust gas containing methane and an excess of oxygen, which comprises palladium or palladium/platinum supported on at least one carrier selected from zirconia, sulfated zirconia and tungsten-zirconia, and a method for trea... | 05/13/2008 |
| 7326819 | High-activity isomerization catalyst and process A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component of... | 02/05/2008 |
| 7314846 | Method for preparing metal oxide particles and an exhaust gas purifying catalyst The present invention relates to metal oxide particles having cores comprising larger molar amounts of zirconia than of ceria, and surface layers comprising larger molar amounts of ceria than of zirconia. Further, the present invention relates to a method for prepar... | 01/01/2008 |
| 7307113 | Fluorosulfonic acid organic polymers The present invention provides for a composition and a process for forming the composition. The composition comprises an organic polymer and 0.5-40% by weight of the composition of a siloxane, the organic polymer having a fluorinated backbone and 3-20 mol-% of penda... | 12/11/2007 |
| 7304199 | Solid acid catalyst and method of using same A catalyst composition includes an oxygen compound of an element selected from Group IVB or Group IVA of the Periodic Table of the Elements; an oxygen compound of an element selected from Group VIB or Group VIA of the Periodic Table of the Elements; and at least abo... | 12/04/2007 |
| 7291577 | Hydrometallurgical process for production of supported catalysts A process for the production of a supported catalyst. The process comprises heating a slurry that comprises a catalyst support and at least one active catalytic ingredient precursor. Gas is introduced to the slurry at a sufficient pressure to reduce the at least one... | 11/06/2007 |
| 7288499 | Regenerable high capacity sorbent for removal of mercury from flue gas A regenerable, high-capacity sorbent for removal of mercury from flue gas and processes and systems for making and using the sorbent. A phyllosilicate substrate, for example vermiculite or montmorillinite, acts as an inexpensive support to a thin layer for a polyval... | 10/30/2007 |
| 7273912 | Supported olefin polymerization catalyst Supported catalyst systems are provided comprising (a) a transition metal compound, (b) a non aluminoxane activator comprising, and (c) a support material comprising an inorganic metal oxide, inorganic metal halide or polymeric material or mixtures thereof character... | 09/25/2007 |
| 7259285 | Oligomerization catalyst, a method for production and the use thereof An oligomerization catalyst for olefins having from 2 to 6 carbon atoms is produced by treating aluminum oxide with a nickel compound and a sulfur compound, either simultaneously or firstly with the nickel compound an then with the sulfur compound, and subsequently ... | 08/21/2007 |
| 7256155 | Flue gas denitration catalyst and preparation process thereof Provided are a flue gas denitration catalyst having high denitration activity and capable of suppressing a side reaction, that is, oxidation of SO2; and a preparation process of the catalyst. The flue gas denitration catalyst comprises TiO2, WO... | 08/14/2007 |
| 7232789 | Catalyst for preparation of pentafluoroethane and preparation method thereof The method of preparing a chromium oxide catalyst for preparation of pentafluoroethane using a chloroethane compound includes heat treating chromium hydroxide powder at a temperature not higher than 300° C. to obtain chromium oxide powder, heat treating metal hydro... | 06/19/2007 |
| 7229947 | Catalyst for hydrogen generation and catalyst for purifying of exhaust gas An NOx sorption-and-reduction type catalyst is made which includes a hydrogen generating catalyst in which Rh is loaded on a support including an Al2O3—ZrO2 composite oxide. Since the Al2O3—ZrO | 06/12/2007 |
| 7227040 | Process for forming branched composition catalytically by carbon-hydrogen bond activation in a saturated moiety A branched composition can be formed by reacting a reagent containing a saturated hydrocarbon moiety in the presence of (a) a catalyst capable of activating a carbon-hydrogen bond therein and (b) a branching reagent having a moiety that binds to the carbon atom in t... | 06/05/2007 |
| 7223898 | Isomerization process A process for the isomerization of a feedstream comprising C5–C6 hydrocarbons where the process involves charging hydrogen and a feedstream comprising at least normal C5–C6 hydrocarbons into an isomerization zone and c... | 05/29/2007 |
| 7220702 | Exhaust gas purification catalyst A noble metal and an NOx sorption member are loaded on a support which includes composite particles having a structure including a core portion in which ZrO2 is a major component and a superficial portion formed on a surface of the core portion... | 05/22/2007 |
| 7214642 | Methods of preparing active chromium/alumina catalysts via treatment with sulfate Methods of preparing a polymerization catalyst are provided that include contacting a support comprising alumina with a sulfating agent and with chromium. In an embodiment in which the chromium is provided from a chromium compound such as chromium oxide, the support... | 05/08/2007 |
| 7205257 | Catalyst for clarifying exhaust gas To provide an exhaust gas purifying catalyst which can maintain the catalytic activity at a high level over a long time and can achieve satisfactory emission control performance, an exhaust gas purifying catalyst is prepared so as to contain a noble metal, a perovsk... | 04/17/2007 |
| 7169376 | Method for making hydrogen using a gold containing water-gas shift catalyst The present invention relates to a method for making hydrogen comprising contacting in a water-gas shift reaction zone a feed comprising carbon monoxide and water under water-gas shift conditions with an effective catalytic amount of a catalyst comprising highly dis... | 01/30/2007 |
| 7153810 | Silver doped catalysts for treatment of exhaust A method of making an exhaust treatment catalyst includes dispersing a metal-based material in a first solvent to form a first slurry and allowing polymerization of the first slurry to occur. Polymerization of the first slurry may be quenched and the first slurry ma... | 12/26/2006 |
| 7125536 | Nano-structured particles with high thermal stability This invention relates to a composition comprising nano-structured metal oxide particles (particularly, zirconia) and at least one stabilizing agent, a method to produce the composition, and a method to produce the thermally stable nano-structured particles. The met... | 10/24/2006 |
| 7112643 | Polymers having low levels of long chain branching and methods of making the same Methods of producing a polymer include contacting at least one olefin with a catalyst prepared by contacting a support comprising alumina with a sulfating agent and with chromium. Polymer compositions produced in this manner may exhibit relatively low levels of long... | 09/26/2006 |
| 7081430 | Exhaust gas purifying catalyst An exhaust gas purifying catalyst that provides the excellent low-temperature activity and also develops the good catalytic activity of rhodium to produce a good purifying performance economically. The exhaust gas purifying catalyst comprises an alumina on which rho... | 07/25/2006 |
| 7081431 | NOabsorbent and absorption reduction-type NOpurifying catalyst An exhaust gas purifying catalyst capable of exerting excellent NOx purifying capability even at high exhaust gas temperatures, exceeding 500° C., is provided. The catalyst is an absorption reduction-type NOx purifying catalyst comprisi... | 07/25/2006 |
| 7070746 | Process for nitrous oxide purification A method for purification of an oxygen contaminated nitrous oxide gas by feeding the nitrous oxide gas and a reducing agent such as hydrogen, carbon monoxide or ammonia into a de-oxidation reactor, performing de-oxidation by reacting the reducing agent with oxygen u... | 07/04/2006 |
| 7071137 | Method of making a ziegler-natta catalyst A method for making a Ziegler-Natta catalyst support includes the steps of contacting a fumed silica with a surface modifying agent such as a compound having the formula RMgX MgR′R″ wherein R, R′ and R″ are each individually a moiety selected from an alkyl g... | 07/04/2006 |
| 7060649 | Method for the production of a catalyst containing vanadium, phosphorus, and oxygen Disclosed is a method for producing a catalyst containing vanadium, phosphorus, and oxygen, which is used for oxidizing the gas phase of a hydrocarbon having at least four carbon atoms to maleic anhydride. According to the inventive method, a corresponding catalyst ... | 06/13/2006 |
| 7041866 | Solid-acid isomerization catalyst and process A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component co... | 05/09/2006 |
| 7026268 | Solid acid catalyst containing platinum group metal component and method for preparation thereof The present invention provides a concentration distribution for a platinum group metal component in a catalyst with which catalyst activity can be increased, and to provide a method for supporting a platinum group metal with which this concentration distribution can... | 04/11/2006 |
| 7022889 | Isomerization process using novel catalyst A process for the isomerization of a feedstream comprising C5–C6 hydrocarbons where the process involves charging hydrogen and a feedstream comprising at least normal C5–C6 hydrocarbons into an isomerization zone and c... | 04/04/2006 |
| 7015175 | High-activity isomerization catalyst and process A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component of... | 03/21/2006 |
| 7005402 | Exhaust gas purifying catalyst compound, catalyst comprising said compound and method for preparing the compound The invention is to provide (i) a catalyst which does not require an activation of catalyst components by means of a calcination which has become a hindrance in the way of obtaining a catalyst having a high activity through a conventional technology and in which cat... | 02/28/2006 |
| 6979396 | Combination reforming and isomerization process A reforming and isomerization process has been developed. A reforming feedstream is charged to a reforming zone containing a reforming catalyst and operating at reforming conditions to generate a reforming zone effluent. Hydrogen and an isomerization feedstream is c... | 12/27/2005 |
| 6956008 | Storage-reduction type NOx purifying catalyst A storage-reduction type NOx purifying catalyst includes a monolith substrate having formed thereon a coat layer containing a cerium-zirconium composite oxide and a cerium-free oxide, a noble metal and an NOx storing material being supported on... | 10/18/2005 |
