METHOD OF DECOMPOSING DIOXINS - KURITA WATER IND LTD

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 (JP)
FUJIYOSHI NAOAKI (JP)
IZUMIKAWA HIROFUMI (JP)
MASHIKO MITSUHIRO (JP)
FUJIWARA NOBORU (JP)

Application Number:

PCT/JP1998/000356

Publication Date:

August 06, 1998

Filing Date:

January 29, 1998

Export Citation:

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Assignee:

KURITA WATER IND LTD (JP)
MIYATA HIROSHI (JP)
FUJIYOSHI NAOAKI (JP)
IZUMIKAWA HIROFUMI (JP)
MASHIKO MITSUHIRO (JP)
FUJIWARA NOBORU (JP)

International Classes:

A62D3/36; B01D53/70; A62D101/08; A62D101/22; A62D101/28; (IPC1-7): B09B3/00; A62D3/00; B01D53/34

Foreign References:

JPH04241880A	1992-08-28
JPH05137813A	1993-06-01
JPH05138149A	1993-06-01
JPH05161822A	1993-06-29
JPH06265133A	1994-09-20
JPH04240817A	1992-08-28

Other References: