河南某难选晶质石墨矿选矿试验研究  

Experimental Study on the Beneficiation of Graphite from a Refractory Scaly Graphite Ore

作　　者：肖骏[1] 董艳红[1] 杨建文[1] 陈代雄[1] Xiao Jun;Dong Yanhong;Yang Jianwen;Chen Daixiong(Hunan Research Institute for Non-ferrous Metals,Hunan Provincial Key Laboratory for Complex Copper Lead Zinc Associated Metal Resources Comprehensive Utilization,Changsha,Hunan,China)

机构地区：[1]湖南有色金属研究院复杂铜铅锌共伴生金属资源综合利用湖南省重点实验室,湖南长沙410100

出　　处：《矿产综合利用》2018年第5期89-92,51,共5页Multipurpose Utilization of Mineral Resources

基　　金：湖南省重点研发计划(难处理微晶石墨矿浮选回收及深度提纯新技术(2016GK2028)

摘　　要：针对河南某晶质石墨矿的性质,在工艺矿物学研究的基础上开展选矿试验研究。该隐晶质石墨矿中石墨矿物嵌布粒度细小、与易浮脉石交代连生。在探索试验基础上,进行了不同条件试验和对比试验,确定了阶段磨浮的工艺。不同捕收剂对比试验研究表明,选用乳化煤油作为晶质石墨的捕收剂效果较好,并使用水玻璃为抑制剂,同时采用超细搅拌磨进行再磨,确保提高最终精矿品位。闭路试验结果表明,在原矿含固定碳6.83%的条件下,采用一粗一扫六精浮选工艺流程,最终得到了含固定碳93.70%,固定碳回收率为74.38%碳精矿的选矿指标,该选矿试验研究为同类型的矿山具有一定的参考作用。In view of the properties of a crystalline graphite ore in Henan province, an experimental study on ore dressing was carried out on the basis of technological mineralogy. The dissemination size of graphite in the scaly graphite ore is fine, and intergrew with easy-floating gangue. On the basis of exploration test, different condition test and contrast test were carried out. According to the characteristics of the ore, through the conditions of test and comparative tests, determining the stage of grinding process. The comparative tests of different types of collectors showed that the study used the emulsified kerosene to recover scaly graphite and superfine stirring mill to improve the grade of concentrate in the re-grinding operations using sodium silicate as inhibitor. The closed-circuit test results showed that while the run-of-time ores have 6.83% of fixed carbon, using the process of one roughing one scavenging six cleaning, the carbon concentrate contains 93.70% of fixed carbon and the recovery rate of fixed carbon is 74.38%, which has a certain reference function for the same type of mine.

关 键 词：晶质 石墨矿 超细磨 乳化煤油 

分 类 号：TD923[矿业工程—选矿]