Novel iron sulfides having excellent durability and excellent treating properties of heavy metals, {HEAD ~ processes} for producing {TAIL ~ the iron sulfides}, iron sulfide mixture, a heavy metal treating agent containing either of these novel iron sulfides as an effective component, and a method by which wastes containing various heavy metals are treated with the heavy metal treating agent are disclosed 
Novel iron sulfides having excellent durability and excellent treating properties of heavy metals , { HEAD ~ processes } for producing { TAIL ~ the iron sulfides } , iron sulfide mixture , a heavy metal treating agent containing either of these novel iron sulfides as an effective component , and a method by which wastes containing various heavy metals are treated with the heavy metal treating agent are disclosed
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