四川某细粒含隐晶质石墨矿选矿试验研究  

Experimental Study on a Fine Cryptocrystalline Refractory Graphite Ore in Sichuan

作　　者：张凌燕[1,2] 彭伟军[1,2] 李向益[1,2] 邱杨率[1,2] 

机构地区：[1]武汉理工大学资源与环境工程学院,湖北武汉430070 [2]矿物资源加工与环境湖北省重点实验室,湖北武汉430070

出　　处：《矿产综合利用》2014年第1期40-44,共5页Multipurpose Utilization of Mineral Resources

摘　　要：四川某石墨矿属于细粒含隐晶质石墨矿石，原矿品位较低，石墨颗粒细小，分离较困难一次粗磨一次粗选，粗精矿五次再磨六次精选的较佳开路试验流程的基础上，对中矿（1～4）进行单独的再磨再选，既能保证最终精矿固定碳含量又能提高固定碳的选矿回收率。通过闭路试验，可获得最终精矿产率为25．95％，固定碳含量为92．01％，回收率为91．14％的技术指标，为该地区石墨资源的开发利用提供了技术依据。The graphite ore from some area in Sichuan belongs to the fine refractory cryptocrystalline graphite ore. On the basis of the best open-circuit of one time coarse and one time roughing, five grindings and six cleanings for the rough concentrate,the process of the single regrinding and recleaning was carried on the middlings （ 1 - 4 ）, which can not only ensure the final concentrate fixed carbon content but also improve the recovery rate of fixed car- bon. Through the closed-circuit test,the final concentrate with the yield of 25.95% ,the fixed carbon content of 92. O1% and the recovery of 91.14% was obtained, which provides technological base for the development and utiliza- tion of graphite in this area.

关 键 词：细粒 隐品质 再磨 中矿 

分 类 号：TD97[矿业工程—选矿]