METHOD FOR RECOVERING LEAD, ANTIMONY AND TIN FROM COMPLEX LEAD-ANTIMONY HAZARDOUS WASTE MATERIAL

A method for recovering lead, antimony and tin from complex lead-antimony hazardous waste material, comprising the following steps: (1) side-blown reduction smelting: adding a certain amount of gangue and reducing coal into a complex lead-antimony-containing hazardous waste material, and placing the...

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Bibliographische Detailangaben
Hauptverfasser:	DENG, Jiushuai, WEI, Jian, WEI, Kailin, YU, Zhishan, NONG, Yongping, LENG, Xincun, HUANG, Jinqing, WU, Wangxia, CAI, Yong, HU, Mingzhen
Format:	Patent
Sprache:	chi ; eng ; fre
Schlagworte:	CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A method for recovering lead, antimony and tin from complex lead-antimony hazardous waste material, comprising the following steps: (1) side-blown reduction smelting: adding a certain amount of gangue and reducing coal into a complex lead-antimony-containing hazardous waste material, and placing the mixture into a side-blown reduction furnace for reduction smelting, to obtain an alloy; (2) tin separation: placing the alloy discharged by the side blowing reduction furnace in a stainless steel anode pot, heating and stirring to remove tin; (3) copper separation: further reducing the temperature of the alloy after stirring and tin removal, adding xylose, stirring and collecting slag, to obtain a lead-antimony alloy having a copper content of less than 0.2%, and casting the lead-antimony alloy into a lead-antimony alloy anode plate; (4) electrolytic refining: placing the lead-antimony anode plate into a lead electrolytic bath for electrolysis, and ingot casting to produce a refined lead ingot. The present method