某锡石多金属硫化矿锌高效回收工艺研究  

Study on Efficient Recovery Process of Zinc from Cassiterite Polymetallic Sulfide Ore

作　　者：吕超 Lv Chao(Kunming Metallurgy Institute,Yunnan Key Laboratory for New Technology Of Beneficiation Metallurgy,State Key Laboratory of Pressure Hydrometallurgical Technology of Associated Nonferrous Metal Resources,Kunming,Yunnan,China)

机构地区：[1]昆明冶金研究院,云南省选冶新技术重点实验室,共伴生有色金属资源加压湿法冶金技术国家重点实验室,云南昆明650031

出　　处：《矿产综合利用》2021年第1期77-82,210,共7页Multipurpose Utilization of Mineral Resources

摘　　要：某复杂锡石多金属矿为锡石硫化物-夕卡岩型,含锌、锡矿物分别以铁闪锌矿、锡石为主,主要有价元素含量Zn 6.04%、Sn1.05%,Fe、S含量分别为29.33%、19.08%,主要脉石成分SiO2含量16.63%。为设计合理、高效回收锌工艺流程,对锌回收流程进行了对比实验研究。研究结果表明,采用脱硫—锌硫混合浮选流程,经一段脱硫、二粗一扫三精,获得了锌精矿Zn品位47.06%、Zn回收率90.76%的良好指标,为同类矿石的开发利用提供可利用途径。A complex cassiterite polymetallic ore is the type of cassiterite sulfide and skarn.The zinc and tin minerals are mainly iron sphalerite and cassiterite,with the main content of valuable elements Zn 6.04%and Sn1.05%,Fe and S 29.33%and 19.08%,respectively,and the main gangue component SiO216.63%.In order to design a reasonable and efficient zinc recovery process,a comparative test was conducted.The results showed that the mixed flotation process of desulphurization and zinc-sulfur was selected,and after desulphurization in one stage,two roughing,one scavenging and three cleaningsc the good indexes of zinc concentrate Zn grade 47.06%and Zn recovery 90.76%were obtained,which provided an available way for the development and utilization of similar ores.

关 键 词：锡石多金属 铁闪锌矿 脱硫 混合浮选 

分 类 号：TD952[矿业工程—选矿]