公开(公告)号：US4952381A

公开(公告)日：1990-08-28

申请号：US284764

申请日：1988-12-12

申请人： Horiaki Rikimaru ,  Tadao Nakatsuji ,  Toshikatsu Umaba ,  Kazuhiko Nagano ,  Kazuya Mishina ,  Hiromitsu Shimizu ,  Shigeru Nojima ,  Kozo Iida ,  Yoshiaki Obayashi ,  Touru Seto ,  Shigeaki Mitsuoka ,  Masayuki Hanada ,  Morio Fukuda ,  Kiyoshi Nagano ,  Makoto Imanari ,  Takeo Koshikawa ,  Akihiro Yamauchi

发明人： Horiaki Rikimaru ,  Tadao Nakatsuji ,  Toshikatsu Umaba ,  Kazuhiko Nagano ,  Kazuya Mishina ,  Hiromitsu Shimizu ,  Shigeru Nojima ,  Kozo Iida ,  Yoshiaki Obayashi ,  Touru Seto ,  Shigeaki Mitsuoka ,  Masayuki Hanada ,  Morio Fukuda ,  Kiyoshi Nagano ,  Makoto Imanari ,  Takeo Koshikawa ,  Akihiro Yamauchi

IPC分类号： B01D53/86 ,  B01J23/18 ,  B01J23/22 ,  B01J23/24 ,  B01J23/34 ,  B01J23/843 ,  B01J23/889

CPC分类号： B01J23/34 ,  B01D53/8628 ,  B01J23/18 ,  B01J23/22 ,  B01J23/24 ,  B01J23/8432 ,  B01J23/8892

摘要： A catalyst for denitrizing nitrogen oxides contained in waste gas which contains a substantial amount of arsenic compounds therein, which comprises:(a) titanium, and(b) at least one element selected from the group consisting of arsenic and manganese. The catalyst is resistant to deactivation by arsenic compounds and retains high denitrizing activity over a long period of time. The catalyst may further contain at least one base metal selected from the group consisting of V, W, Mo, Cu, Fe, Cr, Co, Ni, Zn and Sn.