【摘要】 国外某石墨钒矿，原矿固定碳含量15.30%、V₂O₅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1 500 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V₂O₅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。更多还原

【Abstract】 A graphite-vanadium ore is from a foreign country,the fixed carbon content of the raw ore is 15.30%,with the V₂O₅ 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 1 500 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 V₂O₅ 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.更多还原