磷硅酸盐型稀土矿选矿试验研究
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摘要
磷硅酸盐型稀土矿是一类重要的稀土资源,该矿石矿物元素组成复杂,矿石结构嵌布紧密,主要含稀土矿物为菱黑稀土矿,其稀土元素理论品位低,且与脉石矿物可浮性相近,分选难度高,开发利用困难。针对某低品位磷硅酸盐型稀土矿开展矿物学及选矿技术研究,以形成适于低品位磷硅酸盐稀土矿开发利用的选矿技术。以REO品位为1.46%的某磷硅酸盐型稀土矿石为研究对象,采用单一浮选工艺,选用自主研发的浮选捕收剂RFS,经一次粗选、两次扫选、三次精选闭路流程,获得了REO品位23.25%,REO回收率为78.03%的稀土精矿,为磷硅酸盐稀土矿资源的开发利用提供借鉴。
Phosphorus-silicate-RE ore is one kind of important rare earth resource,but the beneficiation technology was few investigated. In this paper,the beneficiation research was conducted on a phosphorus-silicateRE ore,mineralogy research results show the main rare earth mineral is steenstrupine,it owns complex element component,results in low theory RE grade. By single flotation process,with the self-developed collector RFS,beneficiation research was conducted,in the 1-step rougher flotation,2-step scavenger flotation,3-step cleaning flotation locked cycle flotation tests,the rare earth concentrate with 23. 25% REO grade and 78. 03% REO recovery was obtained. This research provides reference and inspiration on the development of phosphorus-silicateRE resources.
Phosphorus-silicate-RE ore is one kind of important rare earth resource,but the beneficiation technology was few investigated. In this paper,the beneficiation research was conducted on a phosphorus-silicateRE ore,mineralogy research results show the main rare earth mineral is steenstrupine,it owns complex element component,results in low theory RE grade. By single flotation process,with the self-developed collector RFS,beneficiation research was conducted,in the 1-step rougher flotation,2-step scavenger flotation,3-step cleaning flotation locked cycle flotation tests,the rare earth concentrate with 23. 25% REO grade and 78. 03% REO recovery was obtained. This research provides reference and inspiration on the development of phosphorus-silicateRE resources.
引文
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[10]黄万抚,文金磊,陈园园.我国稀土矿选矿药剂和工艺的研究现状及展望[J].有色金属科学与工程,2012,3(6):75-80.
[2]韩玥,郭明强,田兆墨.稀土元素在国民经济发展中的应用[J].中国矿业,2011(增刊1):46-50.
[3]KLINGER J M.A historical geography of rare earth elements:From discovery to the atomic age[J].The Extractive Industries and Society,2015,2(3):572-580.
[4]周喜,韩晓英.我国稀土产业现状及发展趋势(上)[J].稀土,2010,31(5):96-101.
[5]杜晓慧.全球稀土矿产资源分布、开发现状以及未来发展格局[J].资源与产业,2014,16(6):21-28.
[6]CHELGANI S C,RUDOLPH M,LEISTNER T,et al.A review of rare earth minerals flotation:Monazite and xenotime[J].International Journal of Mining Science and Technology,2015,25(6):877-883.
[7]ADAM J,PING C Y,WATERS K E.A review of the beneficiation of rare earth element bearing minerals[J].Minerals Engineering,2013,41(1):97-114.
[8]KUMARI A,PANDA R,JHA M K,et al.Process development to recover rare earth metals from monazite mineral:A review[J].Minerals Engineering,2015,79:102-115.
[9]SOERENSEN E,LUNDGAARD T.Selective flotation of steenstrupine and monazite from kvanefjeld lujavrite[EB/OL].[2018-3-26].https://trove.nla.gov.au/work/32025546.
[10]黄万抚,文金磊,陈园园.我国稀土矿选矿药剂和工艺的研究现状及展望[J].有色金属科学与工程,2012,3(6):75-80.