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.
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)
出处
《矿冶工程》
CAS
北大核心
2024年第1期77-80,共4页
Mining and Metallurgical Engineering
关键词
锡尾矿
锡石
微细粒
浮选
捕收剂
tin tailings
cassiterite
microfine
flotation
collector
