Title:
EXHAUST GAS CLEANING CATALYST COMPOUND, CATALYST CONTAINING THE SAME AND MANUFACTURE OF THE SAME
Document Type and Number:
Japanese Patent JP3765942
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a catalyst and a method for manufacturing the catalyst in which activation by calcination which is an obstruction to obtain the catalyst having high activity in the conventional art is not necessitated and V and Mo are quite sufficiently compounded and to provide a drastically enhanced catalyst in activity, particularly in low temperature activity and durability.
SOLUTION: This exhaust gas cleaning catalyst compound is represented by the rational formula (NH4)xMo2VxO(3x+6) (wherein (x) is 2.8-3.2) in which an atomic ratio of vanadium to molybdenum V/Mo is 3/2. The method for manufacturing the catalyst compound comprises a chemical reaction of molybdenum oxide (MoO3) and ammonium meta vanadate (NH4VO3) in the presence of water for a specified time.
Inventors:
Tai Kato
Koichi Yokoyama
Masatoshi Fujisawa
Koichi Yokoyama
Masatoshi Fujisawa
Application Number:
JP12050199A
Publication Date:
April 12, 2006
Filing Date:
April 27, 1999
Export Citation:
Assignee:
Babcock Hitachi Ltd.
International Classes:
B01J27/24; B01D53/86; B01D53/94; B01J21/06; B01J23/00; B01J23/22; B01J23/28; B01J31/12; B01J37/02; C01G39/00; B01J21/12; (IPC1-7): B01J31/12; B01D53/86; B01D53/94
Domestic Patent References:
| JP49114573A | ||||
| JP7204514A | ||||
| JP5154351A | ||||
| JP55011079A | ||||
| JP58210849A |
Attorney, Agent or Firm:
Takenaga Kawakita
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