朝鲜某地细粒级石墨矿选矿试验研究  

Experimental Research on Beneficiation of a Refractory Fine Graphite Ore in Korea Area

作　　者：张凌燕[1] 张丹萍[1] 邱杨率[1] 潘力[1] 于鸿宾[1] 

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

出　　处：《矿产综合利用》2012年第2期28-32,共5页Multipurpose Utilization of Mineral Resources

摘　　要：朝鲜某地细粒级隐晶质石墨矿,原矿品位较低,石墨颗粒细小,与石英呈蜂窝状均匀嵌布,分离较困难。针对该矿石性质,对该矿进行选矿试验研究,通过采用一次粗磨一次扫选,粗精矿五次再磨七次精选,中矿(1-4)合并再选,中矿(5-8)集中返回再磨Ⅱ的浮选工艺流程进行开路、闭路试验,以及碳酸钠作调整剂,煤油作捕收剂,2#油作起泡剂,最终可获得品位为93.18%,回收率为91.23%的石墨精矿。A beneficiation test of a refractory fine graphite ore in Korea area was studied.An open and closed trials were conducted by a flotation flowsheet,which consists one rough grinding,one scavenge,then five regrinding and seven cleanings to the crude concentrate,one more election to the merges of the middling（1-4）,and the middling（5-8）returns to the regrindingⅡ.Taking the sodium carbonate as modifier,the coal oil as collector and the 2# oil as foaming agent,and eventually fixed carbon content of the graphite was increased from 21.07% to 93.18% and the recovery rate of graphite was 91.23%.

关 键 词：细粒级 石墨 再磨 浮选 

分 类 号：TD97[矿业工程—选矿]