摘要
福建某锌选矿厂的锌精矿含锌47.33%、含铜1.29%、含钼0.49%,铜、钼一直未得到有效回收。针对该锌精矿,开展再磨脱药—铜钼混合浮选—铜钼分离流程试验研究,铜钼混合浮选采用一粗两扫三精—粗精矿再磨工艺流程,铜钼分离采用一粗一扫四精工艺流程。全流程闭路试验可得到含铜20.11%、含金0.78 g/t、铜回收率65.9%的铜精矿,含钼39.49%、含铼18.28 g/t、钼回收率93.0%的钼精矿,以及含锌49.53%、锌回收率99.0%的锌精矿,有效降低了锌精矿中铜、钼杂质含量,同时得到了铜精矿和钼精矿产品,实现了锌、铜、钼的高效分离。
The zinc concentrate of a zinc beneficiation plant in Fujian contains 47.33%zinc,1.29%copper,and 0.49%molybdenum,with copper and molybdenum not effectively recovered.For this zinc concentrate,experimental research was conducted using a regrinding and agent removal-copper and molybdenum mixed flotation-copper and molybdenum separation process.The copper and molybdenum mixed flotation process employed a roughing stage,two scavenging stages,and three cleaning stages,followed by regrinding of the roughing concentrate,while the copper and molybdenum separation process included a roughing stage,a scavenging stage,and four cleaning stages.The closed-circuit test of the entire process yielded a copper concentrate containing 20.11%copper and 0.78 g/t gold,with a copper recovery rate of 65.9%;a molybdenum concentrate containing 39.49%molybdenum and 18.28 g/t rhenium,with a molybdenum recovery rate of 93.0%;and a zinc concentrate containing 49.53%zinc,with a recovery rate of 99.0%.This effectively reduced the impurities of copper and molybdenum in the zinc concentrate,while obtaining high-quality copper and molybdenum concentrates,achieving efficient separation of zinc,copper,and molybdenum.
作者
周生海
Zhou Shenghai(Zijin Mining Group Co.,Ltd.)
出处
《黄金》
CAS
2024年第6期31-36,共6页
Gold
基金
福建省科技计划项目(2017I1010)
厦门市留学人员科研项目(厦人社[2022]205号)。
关键词
锌精矿
再磨脱药
混合浮选
铜钼分离
综合回收
zinc concentrate
regrinding and agent removal
mixed flotation
copper and molybdenum separation
comprehensive recovery
