某石墨矿综合回收石墨及伴生钒矿试验研究  

Experimental study on comprehensive recovery of graphite and associated vanadium ore from a graphite mine

作　　者：刘建国 戴惠新[1] 于丽丽 冯嘉颖 王在华 LIU Jianguo;DAI Huixin;YU Lili;FENG Jiaying;WANG Zaihua(Faculty of Land Resources Engineering,Kunming University of Science and Technology,Kunming 650093,China;Institute of Resources Utilization and Rare Earth Development,Guangdong Academy of Sciences,Guangzhou 510650,China;State Key Laboratory of Separation and Comprehensive Utilization of Rare Metals,Guangzhou 510650,China;Guangdong Key Laboratory of Mineral Resources Development and Comprehensive Utilization,Guangzhou 510650,China)

机构地区：[1]昆明理工大学国土资源工程学院,云南昆明650093 [2]广东省科学院资源利用与稀土开发研究所,广东广州510650 [3]稀有金属分离与综合利用国家重点实验室,广东广州510650 [4]广东省矿产资源开发与综合利用重点实验室,广东广州510650

出　　处：《中国矿业》2025年第1期217-225,共9页China Mining Magazine

基　　金：广东省基础与应用基础研究基金项目资助(编号:2022A1515012165);广东省重点领域研发计划项目资助(编号:2022B0303030002)。

摘　　要：国外某石墨钒矿,原矿固定碳含量15.30%、V_(2)O_(5)含量0.51%,以石墨矿回收为主,伴生回收主要含钒矿物钒云母,石墨矿嵌布粒度粗,钒云母嵌布粒度细。对该石墨钒矿进行了石墨浮选-钒云母浮选选矿试验研究,得到适宜的石墨粗选及粗精矿磨矿细度条件:粗选磨矿细度−0.074 mm占52.66%,捕收剂为煤油与石蜡油1∶1的混合油,用量为70 g/t,水玻璃用量1500 g/t,粗精矿再磨细度−0.074 mm占60.04%;适宜的钒云母粗选及粗精矿磨矿细度条件:粗选捕收剂为P8X,用量为200 g/t,粗精矿磨矿细度−0.074 mm占74.35%,矿样采用一粗三扫四精石墨浮选-一粗二扫二精钒云母浮选流程进行闭路试验,最终获得石墨精矿固定碳含量96.63%、回收率96.28%,以及钒云母精矿V_(2)O_(5)含量1.86%、回收率83.41%的选别指标,为该类矿石综合回收石墨、钒矿提供了技术参考。A graphite-vanadium ore is from a foreign country,the fixed carbon content of the raw ore is 15.30%,with the V_(2)O_(5) content of 0.51%,the graphite ore is mainly recovered ore,and accompanying the recovery of vanadium-containing mineral,which is roscoelite,the dissemination of graphite is coarse,and the dissemination of roscoelite is fine.The separation tests are carried out about graphite flotation-roscoelite flotation for the raw ore,the suitable separation parameters of graphite separation are obtained:the grinding fineness of rougher is−0.074 mm 52.66%,the collector of graphite is the mixture oil of kerosene∶paraffin oil=1∶1,and the dosage is 70 g/t for rougher with the water glass of 1500 g/t,the regrinding fineness of rougher concentrate is−0.074 mm 60.04%.And the suitable separation parameters of roscoelite separation are obtained too.The collector of roscoelite is P8X with the dosage of 200 g/t,the grinding fineness of rougher concentrate is−0.074 mm 74.35%.The closedcircuit test is carried out with the testing procedures of one roughing,three scavenging and four cleaning graphite flotation-one roughing,two scavenging and two cleaning roscoelite flotation,and the separation indexes can be obtained,the fixed carbon content of graphite concentrate is 96.63%with the recovery rate of 96.28%,and the V_(2)O_(5) content of roscoelite concentrate is 1.86%with the recovery rate of 83.41%,the research results provide a technical reference for the comprehensive recovery of this type of graphite-vanadium ore.

关 键 词：石墨矿 钒云母 磨矿细度 浮选 闭路试验 

分 类 号：TD97[矿业工程—选矿]