Title:
METHOD OF DECOMPOSING DIOXINS
Document Type and Number:
WIPO Patent Application WO/1998/033607
Kind Code:
A1
Abstract:
A method of decomposing and removing dioxins from fly ash at a lower temperature in a short time, which comprises contacting the dioxins or the substance containing the dioxins with an amine compound and/or an ammonium compound at a temperature below 300 �C. Since the chlorine in the dioxins reacts with the amine compound and/or ammonium compound, the dechlorination of the dioxins proceeds rapidly at a lower temperature. Thus, dioxins can be decomposed and removed in a short time at a low temperature at which dioxins have not been thought to be decomposable.
Inventors:
Miyata, Hiroshi (Kurita Water Industries Ltd, 4-7 Nishishinjuku 3-chom, Shinjuku-ku Tokyo 160, JP)
Fujiyoshi, Naoaki (Kurita Water Industries Ltd, 4-7 Nishishinjuku 3-chom, Shinjuku-ku Tokyo 160, JP)
Izumikawa, Hirofumi (Kurita Water Industries Ltd, 4-7 Nishishinjuku 3-chom, Shinjuku-ku Tokyo 160, JP)
Mashiko, Mitsuhiro (Kurita Water Industries Ltd, 4-7 Nishishinjuku 3-chom, Shinjuku-ku Tokyo 160, JP)
Fujiwara, Noboru (Kurita Water Industries Ltd, 4-7 Nishishinjuku 3-chom, Shinjuku-ku Tokyo 160, JP)
Fujiyoshi, Naoaki (Kurita Water Industries Ltd, 4-7 Nishishinjuku 3-chom, Shinjuku-ku Tokyo 160, JP)
Izumikawa, Hirofumi (Kurita Water Industries Ltd, 4-7 Nishishinjuku 3-chom, Shinjuku-ku Tokyo 160, JP)
Mashiko, Mitsuhiro (Kurita Water Industries Ltd, 4-7 Nishishinjuku 3-chom, Shinjuku-ku Tokyo 160, JP)
Fujiwara, Noboru (Kurita Water Industries Ltd, 4-7 Nishishinjuku 3-chom, Shinjuku-ku Tokyo 160, JP)
Application Number:
PCT/JP1998/000356
Publication Date:
August 06, 1998
Filing Date:
January 29, 1998
Export Citation:
Assignee:
KURITA WATER INDUSTRIES LTD. (4-7 Nishishinjuku 3-chome, Shinjuku-ku, Tokyo 160, JP)
Miyata, Hiroshi (Kurita Water Industries Ltd, 4-7 Nishishinjuku 3-chom, Shinjuku-ku Tokyo 160, JP)
Fujiyoshi, Naoaki (Kurita Water Industries Ltd, 4-7 Nishishinjuku 3-chom, Shinjuku-ku Tokyo 160, JP)
Izumikawa, Hirofumi (Kurita Water Industries Ltd, 4-7 Nishishinjuku 3-chom, Shinjuku-ku Tokyo 160, JP)
Mashiko, Mitsuhiro (Kurita Water Industries Ltd, 4-7 Nishishinjuku 3-chom, Shinjuku-ku Tokyo 160, JP)
Fujiwara, Noboru (Kurita Water Industries Ltd, 4-7 Nishishinjuku 3-chom, Shinjuku-ku Tokyo 160, JP)
Miyata, Hiroshi (Kurita Water Industries Ltd, 4-7 Nishishinjuku 3-chom, Shinjuku-ku Tokyo 160, JP)
Fujiyoshi, Naoaki (Kurita Water Industries Ltd, 4-7 Nishishinjuku 3-chom, Shinjuku-ku Tokyo 160, JP)
Izumikawa, Hirofumi (Kurita Water Industries Ltd, 4-7 Nishishinjuku 3-chom, Shinjuku-ku Tokyo 160, JP)
Mashiko, Mitsuhiro (Kurita Water Industries Ltd, 4-7 Nishishinjuku 3-chom, Shinjuku-ku Tokyo 160, JP)
Fujiwara, Noboru (Kurita Water Industries Ltd, 4-7 Nishishinjuku 3-chom, Shinjuku-ku Tokyo 160, JP)
International Classes:
A62D3/36; B01D53/70; A62D101/08; A62D101/22; A62D101/28; A62D3/00; B01D53/70; (IPC1-7): B09B3/00; A62D3/00; B01D53/34
Attorney, Agent or Firm:
Shigeno, Tsuyoshi (Nissin Building, 9th floor 5-10, Shinjuku 2-chom, Shinjuku-ku Tokyo 160, JP)
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