某含砷铅锌矿石浮选试验

针对河北某含砷中细粒嵌布难选铅锌矿石的特点，通过大量探索，采用高碱条件下的铅锌依次优先浮选工艺对该矿石进行了选矿试验。试验在铅粗选时以亚硫酸钠+硫酸锌+JSY01组合药剂抑制锌硫砷矿物，在锌粗选时以硫酸铜活化锌矿物，在铅、锌精选时分别以高锰酸钾和石灰+高锰酸钾抑制毒砂，取得了铅精矿品位75.62%、回收率87.63%、含砷0.28%，锌精矿品位45.73%、回收率83.51%、含砷0.44%的良好指标，为选矿厂设计提供了依据。

Experimental Study on Flotation of the Arsenic-bearing Lead-zinc Ore

Due to the characteristics of fine disseminated refractory arsenic-bearing lead-zinc ore in Hebei, beneficiation tests on selective flotation of lead and zinc under high-alkaline conditions were carried out through a lot of exploration. In the rough separation test of lead, the resultant inhibitor of sodium sulfite+zinc sulfate+JSY01 was adopted to inhibit the zinc-sulfur-arsenic minerals, and in the rough concentration of zinc, the copper sulfate was used to activate the zinc minerals. In the final separation of lead and zinc, the potassium permanganate and the lime + potassium permanganate were adopted separately to inhibit arsenopyrite. By this way, lead concentrate with grade of 75.62%, recovery of 87.63%, and arsenic content of 0.28% and zinc concentrate with grade of 45.73%, recovery of 83.51% and arsenic content of 0.44% were achieved, thus providing a basis for the design of the dressing plant.