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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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Hiroaki Rikimaru, Tadao Nakatsuji, Toshikatsu Umaba, Kazuhiko Nagano, Kazuya Mishina, Hiromitsu Shimizu: Catalyst for denitrizing nitrogen oxides contained in waste gases. Sakai Chemical, Mitsubishi Jukogyo Kabushiki Kaisha, Wenderoth Lind & Ponack, December 11, 1990: US04977127 (17 worldwide citation)

A catalyst for denitrizing nitrogen oxides contained in waste gases in the presence of arsenic compounds, which comprises: titanium and vanadium therein in weight ratios of oxides of titanium to oxides of vanadium ranging from 99.9:0.1 to 92.0:8.0, the vanadium being concentratedly contained in the ...


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Masaki Miyazawa, Norihisa Kobayashi, Hiromu Takatsuka, Atsushi Morii, Toshio Koyanagi, Touru Seto, Kozo Iida, Shigeaki Mitsuoka, Hiroaki Rikimaru, Makoto Imanari, Takeo Koshikawa, Akihiro Yamauchi, Masayuki Hanada, Morio Fukuda, Kiyoshi Nagano: Adsorbent for arsenic compound and method for removing arsenic compound from combustion gas. Mitsubishi Jukogyo, Chemical Ind Sakai, Mitsubishi Petrochemical, Petrochemical Engineering Mitsubishi, Catalysts & Chemical, Jules E Goldberg, September 26, 1989: US04869735 (8 worldwide citation)

Here is provided an adsorbent for adsorbing and removing an arsenic compound which becomes a catalyst poison in a selective contact reduction process for removing nitrogen oxides (NOx) from a combustion exhaust gas by the use of an ammonia as a reducing agent and a denitrating catalyst.