摘要
江西某钨尾砂Cu含量为 0.10%、WO3 含量为 0.15%,脉石成分主要为SiO2.为了回收钨尾砂中的微细粒钨矿物,进行了浮选试验.结果表明:试样采用 1 粗 2 精 1 扫闭路浮选流程脱硫、1 粗 4 精 1 扫闭路浮选流程浮钨,脱硫阶段采用丁基黄药+乙硫氮为捕收剂,浮钨以碳酸钠为调整剂、水玻璃为抑制剂、苯甲羟肟酸为捕收剂,可获得WO3 品位 16.98%、WO3 回收率 36.28%的钨精矿,S 品位 19.33%、Cu 品位 10.20%、S 回收率 46.94%、Cu 回收率54.43%的含铜硫精矿,再选可有效解决现场微细粒钨矿物的流失问题,研究结果可作为现场工艺改造的依据.
Abstract
The Cu content of tungsten tailings in Jiangxi is 0.10%,the WO3 content is 0.15%,and the gangue composi-tion is mainly SiO2.In order to recover micro-fine tungsten minerals in tungsten tailings,flotation tests were carried out.The re-sults show that the sample adopts one roughing,two cleanings and one scavenging closed-circuit flotation process for desulfu-rization,and one roughing,four cleanings and one scavenging closed-circuit flotation process for tungsten flotation,in the desul-furization stage,butyl xanthate+diethyldithiocarbamate is used as collector,in tungsten flotation stage sodium carbonate is used as regulator,sodium silicate is used as inhibitor,and benzohydroxamic acid is used as collector.Tungsten concentrate with WO3 grade of 16.98%and WO3 recovery rate of 36.28%,copper-containing sulfur concentrate with S grade of 19.33%,Cu grade of 10.20%,S recovery rate of 46.94%and Cu recovery rate of 54.43%can be obtained.Reselection can effectively solve the problem of loss of micro-fine tungsten minerals in the field.The research results can be used as the basis for on-site process transformation.
基金项目
江西省高层次高技能领军人才培养工程项目(赣人社发[2022]34号)
维普
万方数据