云南某低品位钨锡矿选矿试验研究  

Study on dressing experiments of one low-grade tungsten and tin ore in Yunnan

作　　者：李伟 

机构地区：[1]云南锡业集团有限责任公司研究设计院,云南个旧661000

出　　处：《中国矿业》2014年第6期135-139,共5页China Mining Magazine

摘　　要：云南某钨锡矿含钨0.323%,锡0.140%,二氧化硅63.13%,三氧化二铝17.44%,氧化钙2.92%,氧化镁2.44%,在矿石工艺矿物学及试验研究的基础上,采用一段磨至-0.5mm,针对不同的床型,开展水力分级,进行摇床粗选,混合精矿脱硫、除铁、常温浮选分离钨锡的选矿工艺,获得了钨精矿产率0.31%,钨品位71.06%,钨回收率67.69%,含锡0.56%;锡精矿产率0.12%,锡品位58.18%,锡回收率50.94%,含钨3.80%,锡富中矿产率0.21%,锡品位4.22%,锡回收率6.87%,含钨2.69%,综合锡回收率57.81%的技术指标。Experiments were carried out on one wolfram and tin ore which obtains tin （0 .140% ） ,silica （63 .13% ） ,aluminum oxide （17 .44% ） ,calcium oxide （2 .92% ） ,magnesium oxide （2 .44% ） in Yunnan . Based on the study on ore mineralogy and experimental study ,the ore was milled to -0 .5mm ,the process was as follows ：firstly hydraulic separation was taken according to different type of beds ,then desulfidation and deironing were carried out ,after that separation of wolfram and tin was carried out by flotation at ordinary temperature .Productivities of concentrates of wolfram and tin are 0 .31% with wolfram （71.06% ） ,tin （0 .56% ） and 0 .12% with tin （58 .18% ） ,wolfram （3 .80% ） respectively .The recoveries of wolfram and tin are 67 .69% and 50 .94% in concentrates .Meanwhile productivity of middling of tin is 0 .21 with tin （4 .22% ） ,wolfram （2 .69% ） .The recovery of tin is 6 .87% in middling .Comprehensive recovery of tin is 57 .81% .

关 键 词：白钨矿 锡石 摇床粗选 钨锡分离 

分 类 号：TD952[矿业工程—选矿]