某极低品位难选氧化锌矿选矿试验研究  

Experimental Study on Beneficiation of a Extremely Low-Grade Refractory Zinc Oxide Ore

作　　者：张红英 高连启 惠世和 刘进 王应东 ZHANG Hongying;GAO Lianqi;HUI Shihe;LIU Jin;WANG Yingdong(Institute of Resources Utilization and Rare Earth Development,Guangdong Academy of Sciences,Guangzhou,Guangdong 510650,China;Chihong Technology Engineering Co.,Ltd,Qujing,Yunnan 655000,China;Yiliang Chihong Mining Co.,Ltd.,Yiliang County,Y unnan 657600,China)

机构地区：[1]广东省科学院资源利用与稀土开发研究所,广东广州510650 [2]驰宏科技工程股份有限公司,云南曲靖市655000 [3]彝良驰宏矿业有限公司,云南彝良县657600

出　　处：《矿业研究与开发》2022年第7期56-60,共5页Mining Research and Development

摘　　要：为综合回收某极低品位难选氧化锌矿,在探索试验的基础上确定了反浮选工艺。试验分别考查了再磨磨矿细度、抑制剂用量及捕收剂用量等条件对浮选指标的影响。闭路试验结果表明,采用反浮选工艺进行氧化锌选别,在磨矿细度为-0.038 mm占68%,水玻璃用量为50 g/t,硫化钠用量为250 g/t,捕收剂Pr用量为80 g/t的条件下,对含Zn 1.99%的给矿进行闭路试验,可获得锌精矿Zn品位16.22%、Zn回收率76.29%的良好指标。研究结果可为极低品位难选氧化锌的浮选回收提供借鉴。In order to comprehensively recover a extremely low-grade refractory zinc oxide ore,the reverse flotation process was determined on the basis of exploratory tests.The effects of regrinding fineness,inhibitor dosage and collector dosage on flotation indexes were investigated.The closed-circuit test results show that when the reverse flotation process is used for zinc oxide separation,under the conditions that the grinding fineness is-0.038 mm accounting for 68%,the amount of sodium sulfide is 50 g/t,the amount of sodium sulfide is 250 g/t,and the amount of collector PY is 80 g/t,good indicators of zinc concentrate with Zn grade of 16.22%and Zn recovery of 76.29%can be obtained for the feed containing 1.99%of Zn.The results can provide a reference for the flotation recovery of extremely low-grade refractory zinc oxide.

关 键 词：极低品位氧化锌矿 硅锌矿 反浮选 

分 类 号：TD952.3[矿业工程—选矿]