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2011•Nonferrous MetalsRequires access

Experimental Study on Comprehensive Recovery for a Complex Lead-zinc-silver Sulfide Ore in Yunnan

Pan Ren

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Abstract

According to the properties of a complex sulfide lead-zinc-silver ore in Yunnan,experimental study on mineral processing has been conducted.Lead minerals are successfully separated from zinc minerals with CaO as pyrite depressant,new reagent YZN as zinc depressant,new reagent BPB as lead collector,CuSO4 as zinc activator and butyl xanthate as zinc collector,during which most of the associated Ag is concentrated to lead and zinc concentrates.A closed-circuit laboratory flotation test has been conducted on the basis of open-circuit flotation experiments,from which a lead concentrate with 50.45% Pb and 86.16% recovery and a zinc concentrate with 50.38% Zn and 71.80% recovery are obtained.The grade and recovery of Ag in the lead concentrate are 3 062.33 g/t and 60.63% respectively.The grade and recovery of Ag in the zinc concentrate are 1 008.48 g/t and 19.34% respectively.

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What this paper is about

According to the properties of a complex sulfide lead-zinc-silver ore in Yunnan,experimental study on mineral processing has been conducted.Lead minerals are successfully separated from zinc minerals with CaO as pyrite depressant,new reagent YZN as zinc depressant,new reagent BPB as lead collector,CuSO4 as zinc activator and butyl xanthate as zinc collector,during which most of the associated Ag is concentrated to lead and zinc concentrates.A closed-circuit laboratory flotation test has been conducted on the basis of open-circuit flotation experiments,from which a lead concentrate with 50.45% Pb and 86.16% recovery and a zinc concentrate with 50.38% Zn and 71.80% recovery are obtained.The grade and recovery of Ag in the lead concentrate are 3 062.33 g/t and 60.63% respectively.The grade and recovery of Ag in the zinc concentrate are 1 008.48 g/t and 19.34% respectively.

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Available abstract

According to the properties of a complex sulfide lead-zinc-silver ore in Yunnan,experimental study on mineral processing has been conducted.Lead minerals are successfully separated from zinc minerals with CaO as pyrite depressant,new reagent YZN as zinc depressant,new reagent BPB as lead collector,CuSO4 as zinc activator and butyl xanthate as zinc collector,during which most of the associated Ag is concentrated to lead and zinc concentrates.A closed-circuit laboratory flotation test has been conducted on the basis of open-circuit flotation experiments,from which a lead concentrate with 50.45% Pb and 86.16% recovery and a zinc concentrate with 50.38% Zn and 71.80% recovery are obtained.The grade and recovery of Ag in the lead concentrate are 3 062.33 g/t and 60.63% respectively.The grade and recovery of Ag in the zinc concentrate are 1 008.48 g/t and 19.34% respectively.

Key concepts: Zinc, Depressant, Reagent, Xanthate, Froth flotation, Chemistry, Zinc sulfide, Sulfide

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