JP2972524B

PURPOSE:To successively precipitate the lead and zinc in an incinerated ash as the sulfides and to fractionally recover the lead and zinc efficiently by supplying sodium sulfide to a soln. containing eluted heavy metals from the ash and regulating the pH of the soln. CONSTITUTION:The incinerated ash...

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Bibliographische Detailangaben

Hauptverfasser:	KAMEOKA YOSHIBUMI, KINARI TOSHIHIDE, ITO TADASHI, KAWABATA HIROAKI, MIZUKAMI SHUNICHI
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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