Abstract: An analysis method includes: acquiring a photoelectron spectrum and an X-ray-excited Auger spectrum, the photoelectron spectrum being obtained by detecting photoelectrons emitted from a specimen by irradiating the specimen with X-rays, and the X-ray-excited Auger spectrum being obtained by detecting Auger electrons emitted from the specimen by irradiating the specimen with X-rays; calculating a quantitative value of each element included in the specimen based on the photoelectron spectrum; and performing a curve fitting process on the X-ray-excited Auger spectrum by using an electron beam-excited Auger electron standard spectrum, and calculating a quantitative value of an analysis target element in each chemical bonding state included in the specimen.

Abstract: An analysis method includes: acquiring a photoelectron spectrum and an X-ray-excited Auger spectrum, the photoelectron spectrum being obtained by detecting photoelectrons emitted from a specimen by irradiating the specimen with X-rays, and the X-ray-excited Auger spectrum being obtained by detecting Auger electrons emitted from the specimen by irradiating the specimen with X-rays; calculating a quantitative value of each element included in the specimen based on the photoelectron spectrum; and performing a curve fitting process on the X-ray-excited Auger spectrum by using an electron beam-excited Auger electron standard spectrum, and calculating a quantitative value of an analysis target element in each chemical bonding state included in the specimen.

Abstract: PROBLEM There is provided a catalyst for producing ethylene oxide which is superior in catalytic selectivity and catalytic life (durability). SOLUTION There is provided a catalyst for producing ethylene oxide having a catalyst component supported on a carrier, wherein the carrier has specific surface area of 0.5 to 1.3 m2/g, Si content (SiO2 equivalent) of 0.1 to 5.0% by mass and Na content (Na2O equivalent) of 0.05 to 1.0% by mass, and the catalyst component is silver (Ag), cesium (Cs), rhenium (Re) and tungsten (W) or molybdenum (Mo).

Abstract: There is provided a novel process for producing acrylic acid by which acrylic acid can be obtained from a raw material independent of petroleum. The process for producing acrylic acid according to the present invention comprises the steps of: applying a dehydration reaction to glycerol as a raw material in a gas phase; and then applying a gas phase oxidation reaction to a gaseous reaction product formed by the dehydration reaction.

Abstract: PROBLEM There is provided a catalyst for producing ethylene oxide which is superior in catalytic selectivity and catalytic life (durability). SOLUTION There is provided a catalyst for producing ethylene oxide having a catalyst component supported on a carrier, wherein the carrier has specific surface area of 0.5 to 1.3 m2/g, Si content (SiO2 equivalent) of 0.1 to 5.0% by mass and Na content (Na2O equivalent) of 0.05 to 1.0% by mass, and the catalyst component is silver (Ag), cesium (Cs), rhenium (Re) and tungsten (W) or molybdenum (Mo).

Abstract: A catalyst for producing alkylene oxide including fine metal silver particles dispersed and supported on a carrier, wherein not less than 90% of the fine metal silver particles have silver particle diameters of 2 to 100 nm, is disclosed. The catalyst can be produced by impregnating a carrier with a liquid containing a silver compound or a silver ion; drying the carrier; and then irradiating the carrier with microwave to form fine metal silver particles in dispersed state on the carrier. This catalyst is used for producing olefin oxide by contact gas-phase oxidation of olefin by a molecular-oxygen-containing gas.

Abstract: A catalyst for partial oxidation of olefin, which comprises silver or silver oxide and an alkali metal or a compound thereof supported on an ?-alumina carrier containing silicon or a compound thereof, wherein the silicon or the compound thereof exists at a position substantially identical to that of a particle of the alkali metal or the compound thereof, a preparation method thereof, and a process for preparing olefin oxide which comprises subjecting olefin to vapor-phase oxidation with a molecular oxygen-containing gas in the presence of the catalyst.

Abstract: There is provided a novel process for producing acrylic acid by which acrylic acid can be obtained from a raw material independent of petroleum. The process for producing acrylic acid according to the present invention comprises the steps of: applying a dehydration reaction to glycerol as a raw material in a gas phase; and then applying a gas phase oxidation reaction to a gaseous reaction product formed by the dehydration reaction.

Abstract: A catalyst for partial oxidation of olefin, which comprises silver or silver oxide and an alkali metal or a compound thereof supported on an ?-alumina carrier containing silicon or a compound thereof, wherein the silicon or the compound thereof exists at a position substantially identical to that of a particle of the alkali metal or the compound thereof, a preparation method thereof, and a process for preparing olefin oxide which comprises subjecting olefin to vapor-phase oxidation with a molecular oxygen-containing gas in the presence of the catalyst.

Abstract: There is provided a novel process for producing acrylic acid by which acrylic acid can be obtained from a raw material independent of petroleum. The process for producing acrylic acid according to the present invention comprises the steps of: applying a dehydration reaction to glycerol as a raw material in a gas phase; and then applying a gas phase oxidation reaction to a gaseous reaction product formed by the dehydration reaction.

Abstract: A catalyst for producing alkylene oxide including fine metal silver particles dispersed and supported on a carrier, wherein not less than 90% of the fine metal silver particles have silver particle diameters of 2 to 100 nm, is disclosed. The catalyst can be produced by impregnating a carrier with a liquid containing a silver compound or a silver ion; drying the carrier; and then irradiating the carrier with microwave to form fine metal silver particles in dispersed state on the carrier. This catalyst is used for producing olefin oxide by contact gas-phase oxidation of olefin by a molecular-oxygen-containing gas.

Abstract: The object of the present invention is provide a metal nanoparticle which has a nano-sized average diameter while being highly stable as a particle, and a method for producing such metal nanoparticle. Particularly provides a metal nanoparticle having characteristics such as particle diameter and particle size distribution suitable for forming a conductive coating layer, and a method for producing such metal nanoparticle. The metal nanoparticle of the present invention is characterized in that it is obtained by reacting a reducing agent act on a solution containing an organic acid metal salt and an amine.

Abstract: There is provided a novel process for producing acrylic acid by which acrylic acid can be obtained from a raw material independent of petroleum. The process for producing acrylic acid according to the present invention comprises the steps of: applying a dehydration reaction to glycerol as a raw material in a gas phase; and then applying a gas phase oxidation reaction to a gaseous reaction product formed by the dehydration reaction.

Abstract: A ceramic article is disclosed which contains aluminum, silicon, and titanium in a total amount of at least 99% by weight as reduced to the oxides (Al2O3+SiO2+TiO2) and assumes an acidic color in methyl red, an indicator of at least pKa+4.8. It can be used as a carried for a catalyst. This ceramic article is obtained by mixing an aluminum compound, a silicon compound, and a titanium compound and calcining the resultant mixture at a temperature in the range of 1,000°-2,000° C. A catalyst for preparing ethylene oxide is obtained by depositing silver and a reaction promoter on the ceramic carrier and ethylene oxide is obtained by oxidizing ethylene with a molecular oxygen-containing gas in the presence of the catalyst in vapor phase.

Abstract: A carrier which permits preparation of a catalyst possessed of excellent catalytic performance and used for the production of ethylene oxide, a catalyst obtained by using this carrier, endowed with excellent catalytic performance, and used for the production of ethylene oxide, and a method for the production of ethylene oxide by the use of the catalyst are provided. The carrier is obtained by mixing &agr;-alumina having an alkali metal content in the range of 1-70 m.mols/kg (&agr;-alumina) with an aluminum compound, a silicon compound, and an alkali metal compound and calcining the produced mixture. The carrier which has an aluminum content as reduced to Al in the range of 0-3 mols/kg of carrier, a silicon compound content as reduced to Si in the range of 0.01-2 mols/kg of carrier, and an alkali metal content as reduced to alkali metal in the range of 0.01-2 mols/kg of carrier is used for the deposition of a catalyst for use in the production of ethylene oxide.

Abstract: A catalyst for gas phase oxidation of ethylene which excels in selectivity and life performance, a method for the production of the catalyst and a method for the production of ethylene oxide by the use of the catalyst are disclosed. Specifically, the catalyst for the production of ethylene oxide has silver deposited on a carrier containing 90.0-98.9 mass % of &agr;-alumina, 0.01-1 mass % of a compound of at least one metal element selected from the group consisting of potassium and iron (calculated as oxide), 0.1-5 mass % of a silicon compound (calculated as oxide), and 1-5 mass % of zirconium compound (calculated as oxide) in inner portion thereof, the method for the production of this catalyst, and the method for the production of ethylene oxide by the use of this catalyst.

Abstract: A catalyst for gas phase oxidation of ethylene which excels in selectivity and life performance, a method for the production of the catalyst and a method for the production of ethylene oxide by the use of the catalyst are disclosed. Specifically, the catalyst for the production of ethylene oxide has silver deposited on a carrier containing 90.0-98.9 mass % of &agr;-alumina, 0.01-1 mass % of a compound of at least one metal element selected from the group consisting of potassium and iron (calculated as oxide), 0.1-5 mass % of a silicon compound (calculated as oxide), and 1-5 mass % of zirconium compound (calculated as oxide) in inner portion thereof, the method for the production of this catalyst, and the method for the production of ethylene oxide by the use of this catalyst.

Abstract: A carrier which permits preparation of a catalyst possessed of excellent catalytic performance and used for the production of ethylene oxide, a catalyst obtained by using this carrier, endowed with excellent catalytic performance, and used for the production of ethylene oxide, and a method for the production of ethylene oxide by the use of the catalyst are provided. The carrier is obtained by mixing &agr;-alumina having an alkali metal content in the range of 1-70 m.mols/kg (&agr;-alumina) with an aluminum compound, a silicon compound, and an alkali metal compound and calcining the produced mixture. The carrier which has an aluminum content as reduced to Al in the range of 0-3 mols/kg of carrier, a silicon compound content as reduced to Si in the range of 0.01-2 mols/kg of carrier, and an alkali metal content as reduced to alkali metal in the range of 0.01-2 mols/kg of carrier is used for the deposition of a catalyst for use in the production of ethylene oxide.

Abstract: A carrier which permits preparation of a catalyst possessed of excellent catalytic performance and used for the production of ethylene oxide, a catalyst obtained by using this carrier, endowed with excellent catalytic performance, and used for the production of ethylene oxide, and a method for the production of ethylene oxide by the use of the catalyst are provided. The carrier is obtained by mixing &agr;-alumina having an alkali metal content in the range of 1-70 m.mols/kg (&agr;-alumina) with an aluminum compound, a silicon compound, and an alkali metal compound and calcining the produced mixture. The carrier which has an aluminum content as reduced to Al in the range of 0-3 mols/kg of carrier, a silicon compound content as reduced to Si in the range of 0.01-2 mols/kg of carrier, and an alkali metal content as reduced to alkali metal in the range of 0.01-2 mols/kg of carrier is used for the deposition of a catalyst for use in the production of ethylene oxide.

Abstract: A catalyst for the production of ethylene oxide is formed by causing a carrier having &agr;-alumina as a main component thereof to incorporate therein silica and a metal or a compound of at least one element selected from the elements of the groups Ib and IIb in the periodic table of the elements such as, for example, silver oxide and depositing silver on the carrier. The carrier is obtained by mixing at least &agr;-alumina, a silicon compound, an organic binder, and a compound of at least one element selected from the elements of the groups Ib and IIb in the periodical table of the elements and then calcining the resultant mixture at a temperature in the range of 1,000°-1,800° C.