甘肃国宝山铷矿工艺矿物学研究  

Study on Process Mineralogy of Rubidium Deposit in Guobaoshan,Gansu Province

作　　者：王守敬[1,2,3] 刘璐[1,2,3] 海东靖 

机构地区：[1]中国地质科学院郑州矿产综合利用研究所,河南郑州450006 [2]国土资源部多金属矿评价与综合利用重点实验室,河南郑州450006 [3]河南省黄金资源综合利用重点实验室,河南郑州450006

出　　处：《矿产保护与利用》2017年第3期80-83,共4页Conservation and Utilization of Mineral Resources

基　　金：中国地质调查局地质调查工作项目(12120113088000)

摘　　要：通过化学分析、光薄片鉴定、X衍射分析、电子探针分析、单矿物分析和MLA等方法,对甘肃国宝山铷多金属矿进行了工艺矿物学研究。研究结果显示该矿为钠长石化花岗岩型铷多金属矿。Rb_2O含量为0.13%,主要赋存在铁锂云母和钾长石中。Li_2O含量0.10%,主要赋存在铁锂云母中。脉石矿物主要为钠长石、石英。通过研究发现:有用元素分散、钠长石含量高且与钾长石浮选性质相似是该矿难选的主要原因。Using the methods of chemical analysis, optical microscopy, XRD, EPMA, and MLA, the process mineralogy of rubidium deposit in Guobaoshan, Ganshu province were studied. The re- sult shows that the Guobaoshan rubidium deposit is albitization granite type rubidium deposit. Ru- bidium is mainly present in zinnwaldite and potassium feldspar with the Rb20 grade of 0. 13%. While lithium is mainly present in zinnwaldite with the Li20 grade of 0.10%. The main gangue minerals are albite and quartz. It is found that the primary reasons for unsatisfactory flotation are the disperse of the useful elements, the high content of albite and the similar floatability to potassi- um feldspar.

关 键 词：国宝山 铷矿 工艺矿物学 铁锂云母 钾长石 

分 类 号：TD91[矿业工程—选矿]