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JPH11188237A |
To efficiently remove a lower hydrocarbon in a waste gas by passing the waste gas through a catalyst containing a rhodium oxide supported on a carrier containing chromium oxide and alumina. This gas treating method particularly useful fo...
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JPH11171510A |
To additionally enhance catalyst activity and to remove the carbon monoxide and/or hydrogen in charged air at a further higher decrease rate by removing dust and/or aerosol of a specific grain size or below from an air current on the ups...
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JP2899983B2 |
PURPOSE:To improve the purification performance of the catalyst for exhaust gas by coating a specified carrier surface with a soln. containing a specified amt. of compd. containing group IIa elements in the periodic table, and drying the...
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JP2900307B2 |
To prevent the deterioration of a carrier caused by photocatalytic action by fixing a photocatalyst composed of a powder or sol of a semiconductor or a metal-containing semiconductor and developing deodorizing, antistaining and antibacte...
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JP2897367B2 |
Poisoning-preventive and poisoning-resistant materials are described, including: a poisoning-preventive layer-possessing support comprising a support and, formed thereon, a poisoning-preventive layer having a compound containing at least...
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JPH11137996A |
To produce a catalyst for purifying exhaust gas in which noble metals are carried in a highly dispersed state and which is excellent in durability while suppressing the sintering of noble metals. This catalyst consists of a porous carrie...
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JPH11114427A |
To obtain high As poisoning resistance and a low SO2 oxidation property by a method in which a Ti alkoxide and at least one of alkoxides of P, Zr, B, are mixed, hydrolyzed, and burned to obtain a complex oxide in which the weight ratio o...
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JP2882917B2 |
The present invention provides a poisoning-resistant catalyst for combustion of CO and inflammable gases which comprises an inorganic carrier, a noble metal active ingredient supported on said inorganic carrier, and silica supported on s...
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JPH11100203A |
To prevent the early deactivation or poisening of an oxidation or reduction catalyst by bringing a gas flow compressed to ≥ the atmospheric pressure into contact with a particle containing a metallic peroxide and after that, bringing i...
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JP2880535B2 |
PURPOSE:To improve the strength of the end face of the plate catalyst without embrittling the base material fibers of the catalyst by coating the end face of the catalyst with a reinforcing material consisting of inorg. particles consist...
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JPH1190227A |
To rapidly convert hydrogen contained in a gas to methane under an atmospheric pressure by making up an amorphous alloy catalyst of the oxidation-reduction substance of an amorphous alloy formed of a basic element, a valve metal element ...
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JPH1157489A |
To provide a reinforcing method of an exhaust gas denitrification catalyst which can easily protect and reinforce an inner surface of an exhaust gas inlet in a catalyst with sodium silicate and uniformly coat a surface of the catalyst wi...
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JPH1157471A |
To provide an Rh composite oxide catalyst improved in high- temperature stability to have an excellent cleaning property for providing a heat-resisting property with increase of exhaust gas temperature particularly in the Rh composite ox...
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JP2855375B2 |
PURPOSE:To enhance mechanical strength and to reduce the powdering or collapse due to a physical impact by forming a solid catalyst by coating at least a part of the surface of a molded or supported catalyst with an org. high- molecular ...
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JP2852712B2 |
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JPH10337443A |
To effectively remove NOx by coating a catalyst obtd. by carrying silver and/or one or more silver compds. on a porous inorg. oxide with a high durability inorg. oxide having high heat and sulfur resistances. The top of a silver catalyst...
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JPH10314585A |
To provide a flue gas denitrification process of being not inferior to other flue gas denitrification processes in respect of the denitrification efficiency and, therefore, carrying out the flue denitrification process of superior econom...
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JP2825149B2 |
Anti-poison filter for catalytic gas sensor comprises a porous matter supporting at least 0.5 wt.% of nickel, ruthenium, rhodium, palladium, silver, osmium, iridium, platinum and/or gold.
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JPH10273178A |
To store a photocatalyst tape, etc., while keeping the capability favorable, and at the same time, enable the appearance of a product, etc., to be seen through while being packaged by a method wherein a laminated body of a photocatalyst ...
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JPH10272360A |
To improve the slurry property, heighten the strength, and increase the productivity, by granulating a slurry composition containing a pectic substance in a specified amount relatively to the solid matter of respective catalyst component...
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JPH10263410A |
To excellently preserve the function of a photocatalyst tape or sheet, on which a photocatalyst fine particle is deposited, even in the case that the photocatalyst tape or sheet is preserved in layered state by preserving the layered bod...
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JPH10263406A |
To lessen the adhering property without deteriorating the active performance as a catalyst and the wear resistance by adding an inorganic fine particle with low friction coefficient and excellent lubricating property to a fluid catalyst....
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JPH10249198A |
To make the particle size distribution narrow by suppressing sintering of ultramicro particle-like noble metal, while coagulation of the noble metal itself is restrained, and also controlling average size of deposited noble metal particl...
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JPH10249204A |
To provide a sulfur-resistant lean NOx catalyst for converting an exhaust gas as a useful element of an exhaust gas system for a diesel internal combustion engine by causing a combination of a precious metal and 12- phosphotungstic acid ...
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JPH10225642A |
To provide an exhaust gas purifying catalyst such as preliminary catalyst capable of rapidly being activated in the case when a harmful material in the exhaust gas discharged at the time of starting an internal combustion engine is purif...
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JPH10202109A |
To carry out uniform silica formation in a desired amount of silica, and improve the durability of a catalyst by producing the catalyst for NOx- containing exhaust gas purification from a zeolite bearing Pd, and coating the catalyst with...
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JP2782329B2 |
PURPOSE: To cause a deodorizing material to demonstracte its deodorizing effect for a long time by providing a part or the whole of titanium oxide and an oxidization accelerator on the surface layer of an inorganic cured body. CONSTITUTI...
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JPH10196349A |
To prevent the poisoning of noble metal as a catalyst component by Si or the like by bringing gas, inclusive of this Si or the like, into contact with at lest one of a calcium oxide or a magnesium oxide at a prescribed temperature before...
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JPH10196249A |
To maintain water repellency at a surface over a long period of time by forming a surface layer containing photocatalyst particles, water repellent silicone and a substance to prevent the transformation into a hydrophilic property by lig...
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JPH10180110A |
To provide a catalyst for purifying exhaust gas using a complex oxide the capacity of which is not deteriorated even in a lean atmosphere of 1000°C or more containing sulfur dioxides. In a catalyst for purifying exhaust gas using a comp...
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JPH10174877A |
To maintain the excellent activity of a catalyst over a long period by suppressing loss of a molybdenum component from the catalyst to unnecessitate the replenishment of the molybdenum component or to replenish only an extremely small qu...
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JPH10156992A |
To improve water cleanability and rainfall cleanability of a surface of an object by forming an optical semiconductor-containing layer on the surface of a base material containing Cr atom via a layer for preventing diffusion of atomic sp...
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JP2764080B2 |
PURPOSE:To efficiently obtain methanol by reacting hydrogen with CO2 or hydrogen with a mixture of CO2 and CO by using a hydrophobic methanol synthesis catalyst or the hydrophobic methanol synthesis catalyst in water or a mixture of wate...
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JP2761060B2 |
PURPOSE:To safely perform oxidative decomposition by forming a part of fine particles from a hydrophilic part and a hydrophobic part. CONSTITUTION:A granular reaction body 1 is constituted so that a reaction part 4 wherein hydrophilic pa...
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JPH10118499A |
To enable the almost perfect maintenance of an early activity even after a long time of use by causing a catalytic metal to be borne with its specific surface area part exposed from the surface of a metal oxide carrier. Individual cataly...
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JPH1085609A |
To make the surface of a member hydrophilic and to effectively prevent the clouding of the member and the formation of drops of water by forming a surface layer contg. photocatalytic TiO2 and Y-Ti multiple oxide on the surface of a subst...
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JPH1071331A |
To provide a ZnO-Pd complex catalyst which can purify gas containing CO and sulfur compounds effectively and stably and a method for preparing the catalyst. In a ZnO-Pd complex catalyst contained in an air cleaning filter 1, Pd is disper...
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JPH10501456A |
PCT No. PCT/EP95/02132 Sec. 371 Date Nov. 21, 1996 Sec. 102(e) Date Nov. 21, 1996 PCT Filed Jun. 2, 1995 PCT Pub. No. WO95/33562 PCT Pub. Date Dec. 14, 1995The invention relates to a hydrocracking catalyst containing at least one hydroge...
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JP2707370B2 |
PURPOSE: To provide a reducing catalyst having enhanced catalytic activity and excellent durability by combining water repellent substance with platinum group metals. CONSTITUTION: Suspension dispersed with powder of water repellent subs...
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JPH105595A |
To provide a practical catalyst excellent in activity at low temp. and durability and a method for producing the same. When the top of a fireproof honeycomb monolithic carrier is coated with a fireproof inorg. material based on Cu-contg....
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JP2695121B2 |
PURPOSE: To obtain a single compound containing both antimony and tin capable of passivating mixed metals in any raw material wherein the compound is added to any raw material or impregnated into a catalyst. CONSTITUTION: This compound c...
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JPH09299794A |
To obtain a durable denitration catalyst for removal of NOx in waste combustion gas. This denitration catalyst for catalytic reduction removal of NOx in waste gas to which ammonia has been added has a two-layered structure obtd. by coati...
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JPH09276704A |
To provide a catalyst for cleaning of exhaust gas with which poisoning due to the water content in exhaust gas can be suppressed as much as possible. The catalyst for purification of exhaust gas consists of an Al2O3 catalyst main body 5 ...
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JP2665941B2 |
This invention provides particulate catalyst compositions comprising a platinum-containing hydrosilation reaction catalyst and a polydiorganosilane exhibiting a softening point of from 50 to 200C. The average particle size of the particu...
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JPH09509881A |
PCT No. PCT/GB95/00416 Sec. 371 Date Sep. 3, 1996 Sec. 102(e) Date Sep. 3, 1996 PCT Filed Feb. 28, 1995 PCT Pub. No. WO95/23644 PCT Pub. Date Sep. 8, 1995Stabilization of a reduced copper catalyst by a) passivating the catalyst by passin...
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JPH09225308A |
To improve durability to sulfur oxide (SOx) by adding at least one of silica, titania, and zirconia in a catalyst (lean NOx catalyst) for purifying nitrogen oxides in exhaust gas even in the presence of oxygen in which noble metal is car...
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JPH09225304A |
To obtain a catalyst suitable for hydrogenation treatment of hydrocarbon oil, especially, a light oil fraction to reduce the content of an aromatic compd. and to hydrogenate the light oil fraction by using this catalyst. This catalyst is...
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JP2630993B2 |
This invention provides a platinum-containing hydrosilylation catalyst in particulate form with an average particle size not exceeding 100 micrometers. The particles also contain a silicone resin having a softening point of from 50 to 20...
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JP2622463B2 |
PURPOSE: To stabilize silicomolybdic acid in a highly concentrated aqueous solution for a long period of time and to industrially use silicomolybdic acid by adding silicotungstic acid to silicomolybdate ion. CONSTITUTION: ≥0.09mol sili...
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JPH09506132A |
PCT No. PCT/NL94/00309 Sec. 371 Date Jun. 6, 1996 Sec. 102(e) Date Jun. 6, 1996 PCT Filed Dec. 6, 1994 PCT Pub. No. WO95/16014 PCT Pub. Date Jun. 15, 1995The invention relates to a process for the catalytic interesterification of triglyc...
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