低品位隐晶质石墨浮选提纯试验研究  

Study on the Purification of a low-grade Microcrystalline Graphite by Flotation

作　　者：翁孝卿 李洪强 程润 王燕 王艳彬 Weng Xiaoqing;Li Hongqiang;Cheng Run;Wang Yan;Wang Yanbin(School of Resources and Civil Engineering,Wuhan Institute of Technology,Wuhan,Hubei,China;Chongqing Municipal Qijiang District Administration of Work Safety,Chongqing,China;School of Earth Science and Resources,Chang＇an University,Xi＇an,Shaanxi,China)

机构地区：[1]武汉工程大学资源与土木工程学院,武汉湖北430205 [2]重庆市綦江区安全生产监督管理局,重庆401420 [3]长安大学地球科学与资源学院.西安陕西710000

出　　处：《矿产综合利用》2018年第5期84-88,共5页Multipurpose Utilization of Mineral Resources

基　　金：中央高校基本科研业务费专项资金项目(310827161012);大学生创新创业训练计划项目(省级)(201610710147)

摘　　要：对内蒙古某低品位隐晶质石墨进行了工艺矿物学及矿石可选性实验研究,确定了最佳的粗选条件,以及浮选工艺流程及药剂制度。研究结果表明,原矿是固定碳含量仅为53.30%的隐晶质石墨,属低品位土状石墨矿石,且含有大量易于泡沫夹带的粘土脉石。选用水玻璃为抑制剂,MIBC作为起泡剂,乳化柴油作为捕收剂,能较好地抑制脉石的泡沫夹带。原矿经过一次粗选四次精选中矿两次再选,可得到固定碳含量为84%和70%以上的两种产品,产品综合回收率为81.12%。The process mineralogy and flotation tests of a microcrystalline graphite ore from Inner Mongolia were carefully studied. The optimum roughing conditions and flow-sheet were determined. The results indicated that the ore is a microcrystalline graphite with a fixed carbon content of only 53.30%, which is a low-grade earth-like graphite ore and contains a large amount of clay gangue which is easy to be recovered by foam entrainment. When water glass was used as depressant, MIBC was used as frother, emulsified kerosene was used as collector, the froth entrainment of clay can be reduced. When the ore was separated through flotation flow-sheet of one roughing-four cleanings combined with two scavenging of the middling, two products of fixed carbon more than 84% and 70% can be obtained, the comprehensive recovery of products was 81.12%.

关 键 词：低品位隐晶质石墨 工艺矿物学 浮选 

分 类 号：TD975[矿业工程—选矿]