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JP2002054431A |
To certainly hold fast a catalyst carrier from the initial stage, the catalyst carrier being accommodated in a casing.The catalyst carrier 10 is formed by winding a holding material 12 maintained in the compressed condition by a binding ...
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JP3258354B2 |
PURPOSE: To reduce an amount of a catalyst used in production of a carboxylic acid ester by a direction singly-stage reaction by reacting an aldehyde with an alcohol in the presence of oxygen and to improve the life of a catalyst. CONSTI...
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JP2002503546A |
A method of treating a catalyst support comprises introducing onto and/or into an untreated catalyst support which is partially soluble in an aqueous acid solution and/or a neutral aqueous solution, Si, Zr, Cu, Zn, Mn, Ba, Co, Ni and/or ...
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JP3249143B2 |
PURPOSE: To improve thermal shock behavior by treating a carrier with a water based dispersion of a filling material, particularly paraffin based wax having a prescribed m.p. to be previously coated with the filling material particle and...
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JP2001526115A |
Disclosed is a method of manufacturing a catalytic converter for purifying exhaust gases from an internal combustion engine wherein the converter exhibits a monolithic ceramic substrate surrounded by a supporting mat. The method generall...
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JP3238511B2 |
PURPOSE: To obtain a coating dispersion liquid for an exhaust gas catalyst having a solid in a dispersion liquid having a multi-mode particle distribution of different particle fractions, having the solid in a fine particle and a rough p...
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JP2001525247A |
Polybetaine-stabilized nanosize platinum particles, a process for preparing them and their use for electrocatalysts in fuel cellsSoluble nanosize particles which have a diameter of from 0.5 to 3 nm, preferably from 1 to 2 nm, comprise pl...
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JP2001334148A |
To provide a method, by which sticking of a gaseous organic compound onto a member coated with a highly active photocatalyst during storing or transporting the coated member can be easily prevented and the photocatalytic function can be ...
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JP3224708B2 |
PURPOSE: To provide a nitrogen oxide removing catalyst to remove nitrogen oxide in a combustion gas. CONSTITUTION: A nitrogen oxide removing catalyst is a catalyst to reduce and remove nitrogen oxides in a combustion gas by being brought...
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JP3224609B2 |
PURPOSE: To provide the metallic carrier which is released in the thermal stress and thermal fatigue generated by heating and cooling cycles by joining a honeycomb body and an outside cylinder with a soft structure and is highly durable ...
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JP2001263052A |
To prevent curling of a non-expansion mat without developing a crack of a thin wall ceramic catalyst carrier at the time of force fit and without care in centering at the time of force fit, in a thin wall ceramic manifold converter in wh...
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JP2001246248A |
To produce a catalyst for decomposing harmful substances which can decompose the harmful substances stably over a long period even in the presence of dust and a method for producing the catalyst.In the honeycomb-shaped catalyst 10 which ...
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JP2001246254A |
To produce a novel palladium-rhenium catalyst having rhenium extremely uniformly distributed and carried on a coal, coconut or peat type activated carbon as a carrier and having a good hydrogenation capability for dicarboxylic acids and ...
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JP3197500B2 |
To obtain the subject composite material narrow in size distribution, enabling to easily control the size and useful for metal particles for catalysts, etc., by dissolving a water-insoluble organic polymer, a solvent-soluble metal compou...
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JP2001205098A |
To provide a catalyst carrier with excellent corrosion resistance while a metal is used as a constitutional material and a method for preparing the catalyst carrier with excellent corrosion resistance. This a catalyst carrier comprises a...
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JP2001205087A |
To provide a catalyst for cleaning an exhaust gas which shows an outstanding NOx cleaning performance under a lean atmosphere and also a high resistance to sulfur poisoning. This catalyst for cleaning an exhaust gas is characterized in t...
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JP3194255B2 |
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JP2001170488A |
To provide an exhaust gas purification catalyst having a catalyst carrier high in durability to sulfur oxides(SOx) and capable of efficiently reducing nitrogen oxides (hereinafter referred to as NOx) into nitrogen, which NOx is discharge...
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JP2001170484A |
To solve such a problem that when an exhaust gas purification catalyst is used in a wet exhaust gas, a carrier layer constituted of an insulative inorganic material exfoliates from a stainless steel plate being a base material, which res...
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JP2001113172A |
To suppress the sulfur poisoning of an exhaust gas cleaning catalyst of an NOx occluding and reducing type. In the exhaust gas cleaning catalyst provided with an NOx occluding catalyst bed containing an alkali or alkaline-earth metal, a ...
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JP2001079419A |
To control the deterioration in performance of a catalyst with the passage of time by setting a drying agent near the catalyst layer of a catalyst device for removing dioxins/and/or nitrogen oxides/from exhaust gas from an incinerator an...
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JP3138738B1 |
To provide a novel photocatalyst which has excellent stability and durability and is excitable by long-wavelength visible rays. This photocatalyst comprises (A) a layered composite metal oxide containing an alkali metal, titanium, and ni...
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JP2001038216A |
To prevent the poisoning of an acid point caused by a basic substance and to suppress the deposition of coke by adding at least one atom selected from the group consisting of Ti, Zr, Y, Sc, Nb, Ta, Mo, W, Zn, B, Ga, In, Pb, Ge, Sn, Sr, P...
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JP2001501529A |
A metal foil has improved resistance to permanent thermal expansion. This metal foil includes a metal foil substrate and a thin barrier layer on at least one surface of the metal foil substrate. The metal foil can be used in a catalyst a...
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JP2001000867A |
To provide a catalytic structure for waste gas with the deposition of catalyst increased and excellent in wear resistance.This catalytic structure for waste gas is obtained by depositing a catalyst in and on the surface of a substrate fo...
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JP3110906B2 |
PURPOSE: To provide the subject optically transparent storage-stable one-package composition by including a polyorganosiloxane, an organohydrogensiloxane as a curing agent and a novel microencapsulated hydrosilylation catalyst. CONSTITUT...
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JP2000300995A |
To further improve the durability of an exhaust gas cleaning catalyst of NOx occlusion reduction type by suppressing the sulfur poisoning of an NOx occlusion material, particularly the sulfur poisoning of an NOx occlusion material caused...
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JP2000296168A |
To easily fix a photocatalyst sheet in an automobile without damaging window glass by trimming the cutting end of a mesh-like photocatalyst sheet having a photocatalyst particle containing resin baked layer on a surface of a mesh-like gl...
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JP2000279817A |
To obtain a fine grain metal catalyst which can be easily recovered and can be repeatedly used. This catalyst protects a metal fine grain 1 by a polymer by graft polymerizing the polymer on a surface of a support comprising a metal oxide...
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JP2000254500A |
To obtain a catalyst for the oxidation of unburned hydrocarbons in waste gas containing excess oxygen as a high durability catalyst whose performance is not deteriorated over a long period of time even when SOx is contained in waste gas ...
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JP2000185907A |
To provide a method for catalytically reforming a supplied hydrocarbon material with steam, capable of reforming the hydrocarbon material in a state improved in durability against a sulfur poisoning and sintering, by bringing the supplie...
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JP2000176285A |
To provide a VAM catalyst, in particular a fluidized bed catalyst having higher resistance to wear and tear as well as more advantageous activity/selectivity characteristics.A catalytically active material useful in the production of a v...
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JP2000506212A |
This invention relates to stabilized metallocene catalyst systems and to methods for their production and use. Specifically, these catalyst systems comprise metallocene, alkylalumoxane and optionally support material wherein the ratio of...
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JP2000126615A |
To improve the wear resistance of a catalyst by rolling and applying a catalyst paste obtained by adding a specified oxide or salt to titanium oxide and kneading on a reticular substrate, then drying and/or baking the paste to obtain a c...
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JP2000102730A |
To suppress elusion of a catalyst component from a solid catalyst by bringing the solid catalyst into contact with water in the presence of a surfactant.A solid catalyst is brought into contact with water in the presence of a surfactant....
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JP2000102728A |
To prevent a NOX absorbent from being poisoned with S by forming a catalyst layer containing the NOX absorbent as an inner layer and an oxide layer containing Ce-Zr multiple oxides as an outer layer laminarily on a carrier.Three layers o...
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JP3015524B2 |
PURPOSE:To provide a catalyst for purifying waste gas containing nitrogen oxides, carbon monoxide, and hydrocarbons. CONSTITUTION:A catalyst for waste gas purification is prepared by growing a crystalline silicate on the surface of a mot...
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JP3015568B2 |
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JP2000054825A |
To provide a sulfur poisoning resistant NOx occluding material hardly poisoned by sulfur and capable of suppressing a reduction in NOx absorbing and releasing action by laminating, on a fire resisting inorganic carrier, an inner layer an...
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JP2000042370A |
To provide a catalyst device for purifying exhaust gas capable of preventing the poisoning due to the sulfur in the exhaust gas, improving the NOx purifying performance in lean atmosphere and sufficiently manifesting the function as a te...
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JP2000024511A |
To control the reduction of the high specific surface area of alumina even after the use at high temperatures by preparing silica-supporting alumina so that the concentration of supported silica to alumina is within a specified range, an...
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JP2000027625A |
To improve the NOx cleaning performance (furthermore, hydrocarbon cleaning performance) and fuel consumption at the same time, and improve the durability, in an internal combustion engine in which a lean operation can be executed. An iri...
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JP2000005606A |
To provide a photocatalyst having an excellent light transmittance and a lamp and an illumination device using the catalyst, which can be used as a photocatalyst film by a ultrafine particle coating method and has an improved adhesion pr...
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JP2983740B2 |
PURPOSE: To obtain a highly stable catalyst carrier for use in conjunction with silver, alkali metal promoters, rhenium promoters and optionally rhenium co- promoters. CONSTITUTION: A catalyst carrier consists of at least 85 wt.% of alph...
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JPH11319581A |
To provide a catalyst for treating exhaust gas which can improve wear characteristics without lowering catalytic performance, a method for preparing it and a method for treating exhaust gas using this. In a method for preparing a catalys...
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JPH11300213A |
To provide a denitration catalyst by which denitration with high performance is possible even in a low temperature region of ≤250°C and moreover oxidation ratio of SO2 is low. In the denitration catalyst, nitrogen oxide contained in e...
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JPH11244700A |
To enhance catalytic activity under a low temp. environment by incorporating at least one of metallic cesium and strontium when expressed as metallic elements into an oxide fired body consisting of copper oxide, zinc oxide and alumina. M...
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JP2945926B2 |
To provide such photocatalyst particles and the production method of such particles that odor or harmful matter in air or contamination can be decomposed and removed, that purification of environment such as processing of waste water and...
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JPH11221471A |
To suppress the decrease in catalytic activity accompanied by the increase in used hours, by covering a part of the surface of an oxide, by which water is decomposed at light irradiation to generate at least one of hydrogen and oxygen, w...
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JP2930987B2 |
PURPOSE:To obtain a catalyst having high resistance to crushing at end parts and wavy molded parts by carrying oxide fine particles in gaps between inorganic fibers woven into a cloth and reinforcing the surface of the cloth with a reinf...
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