白云鄂博富钾板岩可选性试验研究  

Study on the Beneficiability of Potassic Slate from Bayan Obo

作　　者：马玺[1,2] 田力男[1,2] 杨静[1] 马鸿文[1] 聂轶苗 

机构地区：[1]中国地质大学(北京)材料科学与工程学院,北京100083 [2]昊青薪材(北京)技术有限公司,北京100083 [3]华北理工大学矿业工程学院,河北唐山063009

出　　处：《矿产综合利用》2016年第1期53-58,共6页Multipurpose Utilization of Mineral Resources

基　　金：中央高校基本科研业务费项目(2652015015;2652014017);中国地质调查项目(12120113087700);北京德杰通投资有限公司委托项目

摘　　要：白云鄂博富钾板岩作为Fe-Nb-REE矿床的围岩,钾资源储量巨大,是一类重要的非水溶性钾矿资源。试验样品的K2O含量为8.99%,TFe2O3含量为13.60%,S含量为2.89%,其主要物相为微斜长石、黑云母、石英、磁黄铁矿。采用湿法磁选-浮选流程对富钾板岩进行可选性研究。试验结果表明,弱磁分选得到了S含量为27.99%的磁黄铁矿产品;强磁分选得到了K2O含量为11.97%的钾长石产品;浮法分选得到了K2O含量为8.60%的黑云母产品。Potassic slate as the surrounding rock of Fe-Nb-REE ore deposit in Bayan Obo is a kind of important insoluble potassium mineral resource. The experimental sample contains 8. 99% of K2 O,13. 60% of TFe2O3and2. 89% of S. And its principal minerals are microcline,biotite,quartz,and pyrrhotite. The magnetic separation and flotation separation experiments were designed for the potassic slate ore. The pyrrhotite with 27. 99% of sulfur was obtained under the low-intensity magnetic field. The microcline which contains 11. 97% of K2 O was separated under the high-intensity magnetic field. The biotite with content of K2 O 8. 60% was obtained in the flotation separation experiment.

关 键 词：白云鄂博 富钾板岩 物相组成 磁选 浮选 微斜长石 磁黄铁矿 黑云母 

分 类 号：TD97[矿业工程—选矿] P619.21[天文地球—矿床学]