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Tadao Nakatsuji, Hiromitsu Shimizu, Ritsu Yasukawa, Fujio Suganuma, Akihiro Kitazume, Hiroshi Tsuchida, Takehiko Ito, Hideaki Hamada, Katsumi Miyamoto, Masaaki Kawatsuki, Yoshiaki Kintaichi, Motoi Sasaki, Mitsunori Tabata: Catalyst for catalytic reduction of nitrogen oxide. Sakai Chemical, Agency of Industrial Science and Technology, Petroleum Energy Center, Cosmo Oil, Sughrue Mion Zinn Macpeak & Seas, January 10, 1995: US05380692 (69 worldwide citation)

A catalyst for catalytic reduction of nitrogen oxide using at least one reducing agent selected from the group consisting of a hydrocarbon and an oxygen-containing organic compound is described, which includes an oxide represented by formula (V):


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Tadao Nakatsuji, Ritsu Yasukawa, Keiichi Tabata, Kazuyuki Ueda: Catalyst and method for catalytic reduction of nitrogen oxides. Sakai Chemical, Petroleum Energy Center, Wenderoth Lind & Ponack L, April 4, 2000: US06045765 (62 worldwide citation)

The invention provides a catalyst for catalytic reduction of nitrogen oxides which uses a hydrocarbon or an oxygen-containing organic compound as a reducing agent, which comprises silver aluminate supported on a solid acid carrier material. The invention also provides a catalyst which comprises silv ...


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Kazunobu Abe, Hiroaki Rikimaru, Iwao Yamazaki, Hiroshi Hasegawa: Production of shaped catalysts or carriers comprising titanium oxides. Sakai Chemical, H Walter Haeussler, September 12, 1978: US04113660 (45 worldwide citation)

A process for preparing shaped catalysts or carriers mainly containing titanium oxide and improved in mechanical strength which comprises calcining a material mainly comprising titanium oxide or a substance convertible into titanium oxide on calcination in the presence of metatitanic acid sol or gel ...


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Kazunobu Abe, Tadao Nakatsuji: Method for producing a catalytic structure for the reduction of nitrogen oxides. Sakai Chemical, Wenderoth Lind & Ponack, May 28, 1985: US04520124 (39 worldwide citation)

A method is provided for producing a catalytic structure in the form of sheet or honeycomb for the gas phase reduction of nitrogen oxides. The method comprises: beating an inorganic fiber in water to form a slurry; forming the slurry into a sheet by paper-making means and drying the sheet; impregnat ...


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Kazunobu Abe, Tadao Nakatsuji: Method for producing a catalyst and a carrier therefor. Sakai Chemical, Wenderoth Lind & Ponack, July 28, 1981: US04280926 (38 worldwide citation)

A method is provided for producing a catalyst and a carrier therefor in the form of sheet or honeycomb. The method comprises: beating a heat-resistant fiber such as asbesto fiber in water to form a slurry; mixing the slurry with a catalytically active agent, a carrier material therefor and/or their ...


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Nobutaka Kanamori, Masaji Kurosawa: Catalyst carriers and process for preparation of the same. Nichias Corporation, Honshu Paper Mfg, Sakai Chemical, Birch Stewart Kolasch & Birch, August 26, 1986: US04608361 (34 worldwide citation)

A process is disclosed for producing a sheet for a catalyst carrier for vapor-phase reactions which comprises mixing highly heat resistant ceramic fibers, organic fibers and an organic binder to form a slurry, forming the slurry into a paper sheet, impregnating the paper sheet with a silicon compoun ...


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Yoshimoto Masafumi Sakai Chemi, Nakatsuji Tadao Sakai Chemical, Nagano Kazuhiko Sakai Chemical: Catalysts and methods for denitrization.. Sakai Chemical Industry Co, April 11, 1990: EP0362960-A2 (33 worldwide citation)

A denitrizing catalyst which comprises: (a) an alkali metal oxide or an alkaline earth metal oxide in amounts of 50-90 % by weight as oxides; (b) at least one metal oxide selected from the group consisting of Co3O4, Cu2O, Cr2O3, Mn2O3, NiO, PbO, Bi2O3, MoO2, Al2O3, SiO2, ZrO2, Fe2O3, TiO2, WO3, MoO3 ...


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Kazunobu Abe, Shoichi Tamura, Tadao Nakatsuji: Method for preventing the wear of a monolithic catalyst by dusts. Sakai Chemical, Wenderoth Lind & Ponack, October 13, 1981: US04294806 (30 worldwide citation)

In a method for treating a gas containing dusts therein under a monolithic catalyst consisting of a ceramic support which is substantially porous throughout the structure, and has active ingredients uniformly dispersed therein and passages therethrough parallel to the flow of the gas for allowing th ...