高铁泥化氧化铅锌矿的浮选试验研究

针对广西某地高铁泥化氧化铅锌矿的特点,采用硫化-胺法优先浮选工艺进行了试验研究。研究表明:在不脱泥的情况下,以六偏磷酸钠为分散剂,硫化钠用量3 kg/t,矿浆pH=9时,以混合胺为捕收剂,能够有效实现氧化铅矿的浮选;氧化锌矿以硫酸铜为活化剂,丁基黄药为捕收剂也能获得较好的浮选效果。在铅、锌给矿品位为3.54%,5.86%条件下,采用该浮选工艺获得了铅品位45.23%,回收率73.51%;锌品位40.56%,回收率为76.21%的浮选指标。

Experimental Study on Flotation of a Mudded Lead-zinc Oxide Ore with High Iron Content

According to the characteristics of a mudded lead-zinc oxide ore with high iron content from Guangxi,experimental study on selective flotation process of it by means of sulfidization-amine method was carried out.The results showed that the process can effectively realize floatation of the lead-zinc oxide ore without de-sliming and under using sodium hexametaphosphate as dispersant,3 kg/t dosage of sodium sulfide,pH value being 9.0 and using mixed amine as collector.Under using copper sulfate as activator and butyl xanthate as collector,the better floatation effect of zinc oxide ore can be achieved.At lead feed grade of 3.54% and zinc feed grade of 5.86%,such flotation indexes as 45.23% lead grade and 40.56% zinc grade of copper concentrate,the lead recovery rate of 73.51% and zinc recovery rate of 76.21% by adopting above selective flotation process.