俄罗斯某高泥锡尾矿强化回收微细粒锡石工艺研究  

Enhanced Tin Recovery of Fine Cassiterite in High Muddy Tin Tailings from Russia

作　　者：吴雅菡 吕昊子 胡真 李强 王成行 WU Yahan;LÜHaozi;HU Zhen;LI Qiang;WANG Chenghang(Institute of Resources Utilization and Rare Earth Development,Guangdong Academy of Sciences,Guangzhou 510651,Guangdong,China;State Key Laboratory of Separation and Comprehensive Utilization of Rare Metals,Guangzhou 510651,Guangdong,China;Guangdong Provincial Key Laboratory of Development and Comprehensive Utilization of Mineral Resources,Guangzhou 510651,Guangdong,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510651 [2]稀有金属分离与综合利用国家重点实验室,广东广州510651 [3]广东省矿产资源开发与综合利用重点实验室,广东广州510651

出　　处：《矿冶工程》2024年第1期77-80,共4页Mining and Metallurgical Engineering

摘　　要：针对俄罗斯某锡尾矿含泥量高、锡石嵌布粒度细、硫铁含量影响锡回收指标等问题,采用硫化矿浮选-锡石预选-锡石浮选组合工艺选锡。结果表明,尾矿中锡矿物主要为锡石,硫化矿包括黄铁矿、磁黄铁矿等,脉石主要以石英和电气石为主。采用锡石预选抛废处理,减少了硫化矿、铁矿物对后续锡石浮选作业的影响。在锡品位0.31%条件下,采用硫化矿浮选-锡石预选抛废-锡石浮选工艺,获得了锡品位5.60%、回收率34.01%的试验指标。Aiming at problems of high mud content in tin tailings from Russia,finely disseminated particle size of cassiterite,and influence of sulfur and iron content on tin recovery rate,a combined process consisting of sulfide ore flotation,cassiterite preconcentration,and cassiterite flotation was adopted in a beneficiation test.It is found that the dominant tin mineral in tailings is cassiterite,and sulfide minerals therein include pyrite,pyrrhotite among others,while the dominant gangue includes quartz and tourmaline.The effect of sulfide ore and iron ore on subsequent cassiterite flotation can be reduced by adopting cassiterite preconcentration process for waste discarding.With the cassiterite grading 0.31%Sn,the beneficiation test with a combined process consisting of sulfide ore flotation,cassiterite preconcentration and cassiterite flotation can produce a concentrate grading 5.60%Sn at 34.01%recovery.

关 键 词：锡尾矿 锡石 微细粒 浮选 捕收剂 

分 类 号：TD98[矿业工程—选矿]