摘要
通过显微镜下鉴定、化学分析、扫描电镜及能谱分析、X射线衍射分析,查明拉屋锌铜矿床有用成分为铜、锌、铅,伴生钨、锡、铋和银,品位分别为0.050%、0.032%、0.030%和144.9×10-6。W主要形成白钨矿,Sn形成锡石和黝锡矿,Bi形成自然铋,Ag形成银(含银)黄铜矿。在筛分分析中,破碎大样>0.25 mm粒级产率为49.24%,<0.075 mm粒级产率为为23%,其余粒级产率均较低。粒度由粗至细,钨、铋、银品位由低到高变化,锡品位在各个粒级变化不明显;钨、锡、铋、银在>0.25 mm和<0.075 mm粒级中占有率最大,分别达到1/3左右,与主金属铜、锌、铅分布一致,有利于综合回收利用。
It is found that the essential useful components are Cu,Zn,Pb,the associated useful components are W,Sn,Bi,Ag,at a percenttage of 0.050%,0.032%,0.030% and 144.9 × 10^-6,from Lawu zinccopper deposit by micro analysis,chemical analysis,scanning electron microscope and energy spectrum analysis,X-ray diffraction analysis.W is mainly formed by scheelite;Sn by cassiterite and stannite;Bi by native bismuth and Ag by silver-chalcopyrite.The yield of particles 0.25 mm is 49.24%; 0.075 mm is 23% after broken in sieve analysis.The grade of W,Bi and Ag tends to be higher from the coarse particle size to fine ones and Sn has no change.The occupancy ratio almost is 1 /3 with particles 0.25 mm and 0.075 mm respectively,the same as the essential components very benefit for the recovery.
出处
《桂林理工大学学报》
CAS
北大核心
2013年第2期217-222,共6页
Journal of Guilin University of Technology
基金
西藏霞钰矿业开发有限公司资助项目(20080509)
作者简介
杨国高（1964-），男，硕士，高级工程师，地质勘探专业，ygg2000@126．com
