Title:
CATALYST FOR DECOMPOSING/DETOXIFYING POLLUTANT
Document Type and Number:
Japanese Patent JP3927694
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a catalyet which can be supplied in a large quantity as that for detoxifying pollutants by decomposition instead of adsorption.
SOLUTION: The charcoal powder of burned carbide produced by burning ceder wood at 300-800°C is immersed in a metal salt solution such as a copper nitrate solution and a nickel nitrate solution or a metal alkoxide solution of Ti(OC3H7)4 Fe(C5H7O2)3 and others, and dried by a constant temperature drier to obtain raw material powder. A catalyst for decomposing/detoxifying pollutants obtained by packing the raws material powder in a mold and sintering the powder at 2500°C by the electric discharge between powder particles while the powder being pressurized under reduced pressure. In this way, the sintered charcoal produced by sintering the charcoal powder demonstrates a reducing function, and the function is further strengthened by microcrystal metal particles dispersed in the fine structure of the sintered charcoal so that pollutants in air or water are reduced/decomposed to be detoxified.
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Inventors:
Ishihara Shigehisa
Kenji Yamane
Takeshi Furusuka
Kenji Yamane
Takeshi Furusuka
Application Number:
JP20773298A
Publication Date:
June 13, 2007
Filing Date:
July 23, 1998
Export Citation:
Assignee:
ShinMaywa Industries,Ltd.
International Classes:
B01D53/86; B01J23/745; B01D53/94; B01J21/04; B01J21/06; B01J21/08; B01J23/04; B01J23/14; B01J23/24; B01J23/34; B01J23/38; B01J23/70; B01J23/72; C04B35/52; (IPC1-7): B01J23/745; B01D53/86; B01D53/94; B01J21/04; B01J21/06; B01J21/08; B01J23/04; B01J23/14; B01J23/24; B01J23/34; B01J23/38; B01J23/70; C04B35/52
Domestic Patent References:
| JP9239268A | ||||
| JP10120465A |
Other References:
西川昌信,木質炭化物と木質炭化物・遷移金属酸化物複合体によるNOxの無害化に関する研究(II) 木炭の種類、炭化条件の検討,日本木材学会大会研究発表要旨集,1997年,第47回,p.626
Attorney, Agent or Firm:
Hiroshi Maeda
Hiroshi Koyama
Ichiro Oneda
Hiroshi Koyama
Ichiro Oneda
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