广东某铅锌矿选矿试验

广东某铅锌矿属于隐晶质铅锌矿，铅氧化率较高，铅锌共生关系密切。为开发利用该矿石资源，对该矿石进行了选矿试验研究。结果表明，在磨矿细度为-200目70%情况下，采用1粗1精1扫铅锌等可浮、1粗2精1扫选锌、中矿顺序返回流程处理该矿石，最终获得了铅、锌品位分别为29.79%、32.43%，铅、锌回收率分别为90.78%、36.60%的铅锌混合精矿，以及锌品位为56.91%、锌回收率为61.41%的锌精矿，铅、锌总回收率分别达90.78%和98.01%。

Beneficiation Tests on a Lead-zinc Ore from Guangdong

A lead-zinc mine in Guangdong province belongs to the implicit crystalline lead-zinc deposit, with high lead oxidation rate, lead and zinc are closely associated with each other. In order to develop and utilize the ore, experimental study was conducted. The results show that with the grinding fineness of 70% passing 200 mesh, using lead and zinc simultaneous flotation of one roughing, one cleaning, one scavenging, and one roughing, two cleaning, one scavenging for zinc beneficiation, middles back to the flowsheet in turn, lead and zinc mixed concentrate with lead grade and recovery of 29.79% and 90.78%, and zinc grade and recovery of 32.43% and 36.60%, zinc concentrate with zinc grade of 56.91%, recovery of 61.41%, total lead and zinc recovery of 90.78% and 98.01% was achieved.