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1614 results about "Platinum group" patented technology
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The platinum-group metals (abbreviated as the PGMs; alternatively, the platinoids, platinides, platidises, platinum group, platinum metals, platinum family or platinum-group elements (PGEs)) are six noble, precious metallic elements clustered together in the periodic table. These elements are all transition metals in the d-block (groups 8, 9, and 10, periods 5 and 6).
Zone coated catalyst to simultaneously reduce NOx and unreacted ammonia
ActiveUS20060039843A1Efficient conversionReduce riskCombination devicesNitrogen compoundsEngineeringInternal combustion engine
Provided is an emissions treatment system and method for reducing NOx emissions in the exhaust stream produced from an internal combustion engine. The system has an injector for periodically metering ammonia or an ammonia precursor into an exhaust stream; and a first substrate with a first SCR catalyst composition, downstream of the injector. The first substrate has an inlet end, an outlet end, a length extending between the inlet end to the outlet end, wall elements and a plurality of passages defined by the wall elements. The first SCR catalyst composition is disposed on the wall elements from the inlet end toward the outlet end to a length that is less than the substrate's axial length to form an inlet zone. The first substrate also has an NH3 destruction catalyst composition with a platinum group metal component dispersed on a refractory metal oxide. The NH3 destruction catalyst is disposed on the wall elements from the outlet end toward the inlet end to a length that is less than the substrate's axial length to form an outlet zone. Generally, there is from 0.1 to 10 g / ft3 of platinum group metal component in the outlet zone.
Owner:BASF CATALYSTS LLC
Thick film conductor composition for use in biosensors
InactiveUS6627058B1Immobilised enzymesBioreactor/fermenter combinationsElectrical conductorPolyethylene glycol
This invention is directed to a composition comprising: (a) platinum group metal powder, alloys, or mixtures thereof as a powder or deposited on graphite supports; (b) poly(glycol ether), derivatives, or mixtures thereof; (c) carbon-based electrically conductive filler; and (d) thermoplastic polymer or mixtures thereof. The invention is further directed to a process for dispersing platinum group metal powder, alloys, or mixtures thereof in poly(glycol ether), derivatives, or mixtures thereof. The invention is further directed to the above composition wherein the platinum group metal powder has been dispersed according to the above process.
Owner:EI DU PONT DE NEMOURS & CO
Emissions treatment system with NSR and SCR catalysts
ActiveUS20050129601A1Small sizeReduce amount particulate matterGas treatmentNitrogen compoundsSorbentGasoline
Provided is an emissions treatment system for an exhaust stream, having a NOx storage reduction (NSR) catalyst with a NOx sorbent at a concentration of at least 0.1 g / in3 and a platinum group metal component dispersed on a refractory metal oxide support; and, an SCR catalyst disposed downstream of the NSR catalyst. The emissions treatment system is advantageously used for the treatment of exhaust streams from diesel engines and lean burn gasoline engines.
Owner:BASF CATALYSTS LLC
Zero platinum group metal catalysts
The present invention pertains to catalyst systems for nitrogen oxide, carbon monoxide, hydrocarbon, and sulfur reactions that are free or substantially free of platinum group metals. The catalyst system of the present invention comprise a substrate and a washcoat, wherein the washcoat comprises at least one oxide solid, wherein the oxide solid comprises one or more selected from the group consisting of a carrier material oxide, a catalyst, and mixtures thereof. The catalyst system may optionally have an overcoat, wherein the overcoat comprises at least one oxide solid, wherein the oxide solid comprises one or more selected from the group consisting of a carrier material oxide, a catalyst, and mixtures thereof. The catalyst comprises one or more selected from the group consisting of a ZPGM transition metal catalyst, a mixed metal oxide catalyst, a zeolite catalysts, or mixtures thereof.
Owner:CATALYTIC SOLUTIONS INC
Exhaust gas treatment catalyst for internal combustion engines with two catalytically active layers on a carrier structure
InactiveUS6348430B1Improve heat resistanceHigh activityInorganic chemistryInternal combustion piston enginesParticulatesPartial oxidation
A catalyst for treating the exhaust gas from internal combustion engines is provided, wherein the catalyst contains two catalytically active layers supported on a support. The first catalytically active layer contains a platinum group metal in close contact with all of the constituents of the first catalytically active layer, wherein the constituents of the first catalytically active layer include particulate aluminum oxide; particulate oxygen storage material, such as cerium oxide, cerium / zirconium and zirconium / cerium mixed oxides, and alkaline earth metal oxides. The second catalytically active layer, which is in direct contact with the exhaust gas, contains particulate aluminum oxide and at least one particulate oxygen storage material, such as cerium oxide, cerium / zirconium and zirconium / cerium mixed oxides. Rhodium is supported on part of the aluminum oxides in the second catalytically active layer or on the particulate oxygen storage material in the second catalytically active layer. By providing the platinum group metal in close contact with all of the constituents of the first catalytically active layer, improved conversion efficiency of the impurities in the exhaust gas can be achieved.
Owner:UMICORE AG & CO KG +1
Integrated process for sputter deposition of a conductive barrier layer, especially an alloy of ruthenium and tantalum, underlying copper or copper alloy seed layer
InactiveUS20070059502A1Effective interfacial barrierGood suitSemiconductor/solid-state device detailsVacuum evaporation coatingMoisture barrierRefractory metals
A fabrication method and a product for the deposition of a conductive barrier or other liner layer in a vertical electrical interconnect structure. One embodiment includes within a a hole through a dielectric layer a barrier layer of RuTaN, an adhesion layer of RuTa, and a copper seed layer forming a liner for electroplating of copper. The ruthenium content is preferably greater than 50 at % and more preferably at least 80 at % but less than 95 at %. The barrier and adhesion layers may both be sputter deposited. Other platinum-group elements substitute for the ruthenium and other refractory metals substitute for the tantalum. Aluminum alloying into RuTa when annealed presents a moisture barrier. Copper contacts include different alloying fractions of RuTa to shift the work function to the doping type.
Owner:APPLIED MATERIALS INC
Zero Platinum Group Metal Catalysts
Owner:ECS HLDG +1
Light-emitting semiconductor potting composition and light-emitting semiconductor device
ActiveUS6806509B2Semiconductor/solid-state device detailsSolid-state devicesPtru catalystDevice material
Owner:SHIN ETSU CHEM CO LTD
Enzyme electrodes and method of manufacture
ActiveUS7250095B2Easy to adjustStabilise enzymeImmobilised enzymesBioreactor/fermenter combinationsEnzyme electrodeEnzyme
A non-mediated enzyme electrode comprises a base substrate (2) on which is provided an electrically conductive base layer (8) comprising finely divided platinum group metal or oxide bonded together by a resin; a top layer on the base layer (8), the top layer comprising a buffer. A catalytically active quantity of an oxidoreductase enzyme is provided in at least one of the base layer and the top layer. The invention also provides a biosensor (20) which includes an enzyme electrode, and methods of manufacturing the enzyme electrode and biosensor.
Owner:ARKRAY INC
Exhaust gas treatment catalyst
InactiveUS7374729B2Improved coating architectureSacrificing TWC catalyst performanceCombination devicesInternal combustion piston enginesSorbentMetal
Owner:BASF CATALYSTS LLC
Cold start catalyst and its use in exhaust systems
InactiveUS20120308439A1Emission reductionSpeed up the conversion processCombination devicesMolecular sieve catalystsMetal catalystPlatinum group
A cold start catalyst is disclosed. The cold start catalyst comprises a zeolite catalyst and a supported platinum group metal catalyst. The zeolite catalyst comprises a base metal, a noble metal, and a zeolite. The supported platinum group metal catalyst comprises one or more platinum group metals and one or more inorganic oxide carriers. The invention also includes an exhaust system comprising the cold start catalyst. The cold start catalyst and the process result in improved NOx storage and NOx conversion, improved hydrocarbon storage and conversion, and improved CO oxidation through the cold start period.
Owner:JOHNSON MATTHEY PLC
Crosslinkable rubber compositions and use thereof
The crosslinkable rubber composition of the invention is crosslinkable by hot air, and a hot-air crosslinked rubber sheet thereof has no scratch on the surface in a hardness test using a pencil of HB and has a compression set of not more than 70% after a heat treatment at 150° C. for 22 hours. The rubber composition comprises an ethylene / α-olefin / non-conjugated polyene random copolymer rubber comprising a specific vinyl end group-containing norbornene compound, a SiH group-containing compound having at least two SiH groups in one molecule, and if necessary, an addition reaction catalyst comprising a platinum group element and a reaction inhibitor. The automobile weatherstrip, hose, rubber vibration insulator, belt, sealing material, expanded product, covered electric wire, electric wire joint, electric insulating part and household rubber product according to the invention comprise the above-mentioned rubber composition. The rubber composition has a high crosslinking rate and excellent productivity to produce crosslinked rubber molded products, is capable of undergoing hot-air crosslinking such as HAV or UHF and is capable of providing crosslinked rubber molded products having excellent compression set resistance, strength properties, heat resistance, weathering resistance and abrasion resistance.
Owner:MITSUI CHEM INC +1
Process for the recovery of value metals from base metal sulfide ores
InactiveUS20050118081A1Simple gas/liquidReduce the amount requiredSulfur compoundsSolid sorbent liquid separationSulfideDissolution
A process for leaching a value metal from a base metal sulfide ore, comprising the step of leaching the ore with a lixiviant comprising a chloride, an oxidant and hydrochloric acid is disclosed. The leaching is controlled, by use of low concentrations of hydrochloric acid and a redox potential, to effect formation of hydrogen sulfide from the base metal sulfide ore. The hydrogen sulfide is stripped from the leach solution, thereby reducing the amount of sulfate generated in the leach to very low levels. The leaching may also be conducted to limit the co-dissolution of platinum group metals and gold with the base value metals. The leach forms a value metal-rich leachate and a solids residue. The solids residue may be subsequently leached to recover the platinum group metals and gold. The value metal-rich leachate can be is oxidized and neutralized to recover the value base metals. In an embodiment, the chloride is magnesium chloride and lixiviant solution is regenerated.
Owner:JAGUAR NICKEL INC
Catalyst for cleaning up the exhaust gases of a diesel engine
InactiveUS6677264B1Reduced activityReduce componentsMolecular sieve catalystsInternal combustion piston enginesCatalytic functionComponents of crude oil
A catalyst for purifying exhaust gases of a diesel engine. The catalyst contains two functional layers superimposed on an inert supporting body, whereby the first layer, which is situated directly on the supporting body, has a nitrogen oxide storage function and the second layer, which is in direct contact with the exhaust gas, has a catalytic function. The second functional layer additionally has a hydrocarbon-storage function and its catalytic function is provided by catalytically active noble metals of the platinum group which are deposited in highly dispersed form on finely divided, acidic carrier materials. Nitrogen oxides in the oxygen-rich exhaust gas of a diesel engine can be converted with optimal utilization of the reductive constituents contained in the exhaust gas. For this purpose, no reducing agents going beyond the reductive components (carbon monoxide and hydrocarbons) which are contained as a consequence of incomplete combustion need to be added to the exhaust gas. Nevertheless, rates of conversion in respect of the nitrogen oxides are obtained, averaged over practical driving cycles, which lie distinctly above the rates of conversion of conventional reduction catalysts.
Owner:UMICORE AG & CO KG +1
Solid-acid isomerization catalyst and process
ActiveUS7041866B1Improve performanceImprove stabilityHydrocarbon by isomerisationCatalytic crackingAlkaneSulfation
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 comprising at least one Group III A (IUPAC 13) component, and at least one platinum-group metal component which is preferably platinum.
Owner:UOP LLC
Lithium aluminate layered catalyst and a selective oxidation process using the catalyst
InactiveUS6858769B2Thermal non-catalytic crackingHydrocarbon by isomerisationHydrogenDehydrogenation
A catalyst for the selective oxidation of hydrogen has been developed. It comprises an inert core such as cordierite and an outer layer comprising a lithium aluminate support. The support has dispersed thereon a platinum group metal and a promoter metal, e.g. platinum and tin respectively. This catalyst is particularly effective in the selective oxidation of hydrogen in a dehydrogenation process.
Owner:UOP LLC
Architectural diesel oxidation catalyst for enhanced no2 generator
ActiveUS20110099975A1Improve performanceEfficient executionCombination devicesNitrogen compoundsEngineeringMetal
A device is described which provides thermally durable NO2 generation in conjunction with efficient heat-up performance for filter regeneration, and low temperature HC (hydrocarbon) and CO activity. Importantly, it provides both functions while minimizing PGM (platinum group metals) utilization and its associated impact on catalyst cost.
Owner:UMICORE AG & CO KG
Platinum group metal-free catalysts for reducing the ignition temperature of particulates on a diesel particulate filter
A catalyzed diesel particulate filter (CDPF) and a method for filtering particulates from diesel engine exhaust are provided, where the catalyzed diesel particulate filter includes a substrate and a catalyst composition, where the catalyst composition contains at least one first component, at least one second component, and at least one third component, where the first component is at least one first component selected from the group consisting of cerium and a lanthanide and mixtures thereof, the at least one second component is selected from the group consisting of cobalt, copper, manganese and mixtures thereof; and the third component comprises strontium, where the first component, the second component, and the third component are in an oxide form after calcination. The catalyst on the catalyzed diesel particulate filter lowers the temperature at which particulates are removed from the CDPF by oxidizing the particulates on the filter. The catalyzed diesel particulate filter may also include a washcoat. Washcoats prepared from colloidal aluminum oxide may have higher surface areas and pore volumes loadings than washcoats containing aluminum oxide prepared from aluminum nitrate.
Owner:CATALYTIC SOLUTIONS INC
Catalyst for preparing propylene by dehydrogenating propane as well as preparation method and applications thereof
ActiveCN102049267AHigh activityReduce carbon depositionPhysical/chemical process catalystsHydrocarbonsHalogenActive component
The invention relates to a catalyst for preparing propylene by dehydrogenating propane, which comprises an alumina supporter and active components in the following contents by using the alumina supporter as a calculation basis: 0.1-2.0 percent by mass of platinum group metals, 0.1-2.0 percent by mass of IVA group metals, 0.5-5.0 percent by mass of potassium, 0.2-5.0 percent by mass of cerium or samarium, and 0.3-10 percent by mass of halogen. The catalyst is used in the reaction for preparing propylene by dehydrogenating propane. The catalyst has higher conversion rate of propane, higher selectivity of propylene and good regeneration performance.
Owner:CHINA PETROLEUM & CHEM CORP +1
Light-emitting semiconductor potting composition and light-emitting semiconductor device
ActiveUS20040178509A1Semiconductor/solid-state device detailsSolid-state devicesMetal catalystAlkoxy group
A potting composition comprising (A) an organopolysiloxane having a vinyl group at an end of its molecular chain, (B) an organohydrogenpolysiloxane, (C) a platinum group metal catalyst, and optionally, (D) an organosilicon compound having a silicon atom-bonded alkoxy group. The cured product of the composition has a refractive index of 1.41-1.56 at 25° C. and 589 nm (sodium D line). The composition is suited for the embedment and protection of light-emitting semiconductor members. A package in which a light-emitting semiconductor member is embedded and protected with the potting composition undergoes little discoloration and maintains a high emission efficiency in heating tests, thus offering a light-emitting semiconductor device featuring a long life and energy saving.
Owner:SHIN ETSU CHEM IND CO LTD
Conductive barrier layer, especially an alloy of ruthenium and tantalum and sputter deposition thereof
InactiveUS20060251872A1Semiconductor/solid-state device detailsVacuum evaporation coatingDielectricRuthenium
A fabrication method, a product structure, a fabrication method, and a sputtering target for the deposition of a conductive barrier or other liner layer in an interconnect structure. The barrier layer comprises a conductive metal of a refractory noble metal alloy, such as a ruthenium / tantalum alloy, which may be amorphous though it is not required to be so. The barrier layer may be sputtered from a target of similar composition. The barrier and target composition may be chosen from a combination of the refractory metals and the platinum-group metals as well as RuTa. A copper noble seed layer may be formed of an alloy of copper and ruthenium in contact to a barrier layer over the dielectric.
Owner:APPLIED MATERIALS INC
Oxidation catalyst on a substrate utilized for the purification of exhaust gases
InactiveUS20060211569A1Molecular sieve catalystsDispersed particle separationParticulatesHydrocotyle bowlesioides
Owner:CLARIANT INT LTD
Reforming process using high density catalyst
InactiveUS20060102520A1High densityIncreased pinning marginCatalytic naphtha reformingCatalyst activation/preparationMössbauer spectroscopyMass ratio
A catalyst and a process for using the catalyst are disclosed generally for the conversion of hydrocarbons. The catalyst has an increased average bulk density and a decreased mass ratio of platinum-group metal. The process using the catalyst obtains unexpected high activity and stability for the reforming of naphtha range hydrocarbons. Mössbauer spectroscopy is used to characterize the extent of tin association with platinum and determine an effective molar tin ratio appropriate for alumina supports with densities above 0.6 g / cc.
Owner:UOP LLC
Exhaust gas treatment catalyst
InactiveUS20050227867A1Improved coating architectureSacrificing TWC catalyst performanceCombination devicesInternal combustion piston enginesSorbentPlatinum group
Provided are an exhaust treatment catalyst and an exhaust article containing the catalyst. The catalyst comprises: (a) a carrier; (b) a first layer deposited on the carrier, said first layer comprising substantially only at least one refractive metal oxide; (c) a second layer deposited on the first layer, said second layer comprising substantially only at least one oxygen storage component and at least one binder therefor; and (d) a third layer deposited on the second layer, said third layer comprising at least one layer of one or more platinum group metal components supported on a refractory metal oxide support. Optionally, a fourth layer is deposited on the third layer wherein the fourth layer comprises one or more platinum group metal components supported on a refractory metal oxide support. As a further option, an overcoat layer may be deposited on the third or fourth layer wherein the overcoat layer comprises a catalyst poison sorbent. Also provided are methods for preparing the catalyst and methods for monitoring the exhaust storage capacity of an exhaust article containing the catalyst.
Owner:BASF CATALYSTS LLC
Isomerization catalyst and processes
InactiveUS6977322B2Improve performanceImprove stabilityHydrocarbon by isomerisationCatalytic crackingAlkaneIsomerization
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 tungstated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component of at least one lanthanide element, yttrium or mixtures thereof, which is preferably ytterbium or holmium, and at least one platinum-group metal component which is preferably platinum.
Owner:UOP LLC
Selective xylenes isomerization and ethylbenzene conversion
This invention is drawn to a process for isomerizing a non-equilibrium mixture of xylenes and ethylbenzene using an oil-dropped catalyst comprising a zeolite, a platinum-group metal and an aluminophosphate binder, resulting in a greater yield of para-xylene at favorable conditions compared to processes of the known art.
Owner:UOP LLC
Bipolar plate for fuel cell and method for production thereof
InactiveUS20040247978A1Low costSimple structureFinal product manufactureDecorative surface effectsFuel cellsMetal alloy
In a bipolar plate for a fuel cell including a metal substrate and a metallic coating formed on at least part of a surface of the metal substrate, the durability or the resilience is elevated by suitably selecting a material or a shape of the metal substrate and / or the metallic coating. The material of the metal substrate includes one or more of metals or metal alloys selected from a group consisting of iron, nickel, alloys thereof and stainless steel; and the metallic coating includes a combination of conductive platinum-group metal oxides. The metal substrate may be a thermally oxidized substrate, and the metallic coating may be a conductive oxide. Further, the metallic coating may be a metallic porous element or a metallic porous element having a passivity prevention layer on the surface thereof.
Owner:FURUYA KINZOKU KK
Epoxy/silicone mixed resin composition and light-emitting semiconductor device
ActiveUS20050129957A1Improve adhesionIncrease resistanceSemiconductor/solid-state device detailsSynthetic resin layered productsEpoxyEnergy expenditure
An epoxy / silicone mixed resin composition comprising (A′) an organosilicon compound containing at least one aliphatic unsaturated monovalent hydrocarbon group and at least one silicon atom-bonded hydroxyl group, (B) an epoxy resin containing at least one epoxy group, (C) an organohydrogenpolysiloxane, (D) a platinum group metal-based catalyst, and (E) an aluminum-based curing catalyst is used to encapsulate a light-emitting semiconductor member. The light-emitting semiconductor device undergoes little discoloration in a heat test, and has a high emission efficiency, a long life and reduced energy consumption.
Owner:SHIN ETSU CHEM IND CO LTD
Propane dehydrogenation catalyst with hetero atom molecule sieve as carrier and preparation method thereof
InactiveCN101513613AEnhanced interactionPromote migrationMolecular sieve catalystsCatalyst activation/preparationMolecular sievePtru catalyst
The invention relates to a propane dehydrogenation catalyst with a hetero atom molecule sieve as a carrier. The hetero atom molecule sieve carrier for preparing the catalyst is a ZSM-5 molecule sieve with the skeleton containing metallic elements of the fourth A group and rare earth elements. The catalyst is shaped by taking metallic elements of platinum group as a main catalyst, taking metallic elements of the fourth A group or the metallic elements of the forth A group or the second A group as an assistant, taking halogen elements as a modifying agent, and taking inorganic oxides as a bonder. The preparation of the catalyst adopts a step impregnation method, that is, the method comprises the steps of firstly impregnating the alkaline metal assistant so as to effectively adjust the acidity and alkaline of the catalyst and the variety of positive ions in the pore path of the molecule sieve by cation interchange technology; and then impregnating the metallic elements of platinum group. The catalyst has excellent anti-carbon performance, and higher propane utilization rate, propane selectivity and reaction reliability at the reaction conditions of high temperature and low pressure.
Owner:NANJING JINLIAN TECH +1
High-activity isomerization catalyst and process
InactiveUS6881873B2Improve performanceImprove stabilityThermal non-catalytic crackingHydrocarbon by isomerisationAlkaneSulfation
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 at least one lanthanide element or yttrium component, which is preferably ytterbium, and at least one platinum-group metal component which is preferably platinum.
Owner:UOP LLC
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