公开(公告)号：EP0914877A4

公开(公告)日：1999-09-08

申请号：EP98901491

申请日：1998-01-29

申请人： KURITA WATER IND LTD

发明人： MIYATA HIROSHI ,  FUJIYOSHI NAOAKI ,  IZUMIKAWA HIROFUMI ,  MASHIKO MITSUHIRO ,  FUJIWARA NOBORU

IPC分类号： A62D3/36 ,  A62D101/08 ,  A62D101/22 ,  A62D101/28 ,  B01D53/70 ,  B09B3/00 ,  A62D3/00 ,  B01D53/34

CPC分类号： A62D3/36 ,  A62D2101/08 ,  A62D2101/22 ,  A62D2101/28 ,  B01D53/70

摘要： 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 DEG 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.