公开(公告)号：EP0724918A4

公开(公告)日：1997-06-25

申请号：EP95928006

申请日：1995-08-10

申请人： SHINMAYWA IND LTD

发明人： HAYASHI YOSHIHIRO ,  YAMANE TAKESHI ,  KANNAN MASAKI ,  KOJIMA AKIRA

IPC分类号： A62D3/33 ,  A62D3/37 ,  A62D101/08 ,  A62D101/43 ,  B09B3/00

CPC分类号： A62D3/33 ,  A62D3/37 ,  A62D2101/08 ,  A62D2101/43 ,  A62D2203/04 ,  A62D2203/10

摘要： A method of and an apparatus for disposing waste containing heavy metals for conversion to a harmless state are provided. In the method, iron oxide or a material forming iron oxide by heating in the presence of oxygen and a reductant such as carbon are added to the waste. The obtained mixture is heated in a dry method, to form ferrite. The heavy metals are fixed in the ferrite, and the waste is converted to a safe and useful ferrite material. The disposing apparatus comprises a reactor (18), a raw material supply unit (10, 12, 14, 16), a stirring unit (22), a radiation heater (20), a volatile metal recovery unit (26), and a dust collector (28).