METHOD FOR DETOXIFYING INCINERATION ASH

PROBLEM TO BE SOLVED: To provide a method for detoxifying incineration ash, capable of sorting heavy metals to recover them and reducing the reutilization cost of the recovered heavy metals. SOLUTION: For the method for detoxifying incineration ash by heating the incineration ash in a heating chambe...

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Bibliographische Detailangaben
Hauptverfasser:	OZAWA SHOJI, OYASHIKI TAKUYA, MATSUDA HITOKI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY DISPOSAL OF SOLID WASTE FERROUS OR NON-FERROUS ALLOYS METALLURGY PERFORMING OPERATIONS PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS RECLAMATION OF CONTAMINED SOIL SOIL TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for detoxifying incineration ash, capable of sorting heavy metals to recover them and reducing the reutilization cost of the recovered heavy metals. SOLUTION: For the method for detoxifying incineration ash by heating the incineration ash in a heating chamber, heavy metals or heavy metal compounds are sorted and volatilized by stepwise changing the atmosphere or temperature in the heating chamber to recover heavy metals or heavy metal compounds. COPYRIGHT: (C)2003,JPO