都龙铁闪锌矿工艺矿物学研究  

Study on the Mineralogy of a Marmatite Ore from Dulong

作　　者：叶志文 文书明[1,2] 王伊杰[1,2] 刘丹[1,2] 陈瑜[1,2] YE Zhiwen;WEN Shuming;WANG Yijie;LIU Dan;CHEN Yu(State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,Kunming University of Science and Technology,Kunming 650093,China;Faculty of Land Resource Engineering,Kunming University of Science and Technology,Kunming 650093,China)

机构地区：[1]昆明理工大学省部共建复杂有色金属资源清洁利用国家重点实验室,云南昆明650093 [2]昆明理工大学国土资源工程学院,云南昆明650093

出　　处：《矿产保护与利用》2018年第1期107-111,共5页Conservation and Utilization of Mineral Resources

基　　金：国家科技支撑项目(2015BAB02B04)

摘　　要：为了给都龙铁闪锌矿的回收工艺研究提供依据,采用化学多元素分析、显微镜观察、单矿物化学成分能谱分析、MLA矿物自动定量检测技术等手段对该矿石进行了工艺矿物学研究,得出的主要结论为:虽然矿石中含金属矿物较多,但回收的主要对象为闪锌矿,矿石中的含锌矿物以闪锌矿为主,含量为7.715%,另外还有少量异极矿;闪锌矿化学能谱分析结果表明,闪锌矿中含铁12.04%,为铁闪锌矿;闪锌矿与磁黄铁矿、黄铜矿连生,-0.2 mm原矿中的闪锌矿约一半以连生体形式存在,且矿石中磁铁矿含量约7%,磁黄铁矿含量约10%。根据以上结论,建议先通过弱磁选富集回收磁铁矿和磁黄铁矿,通过抑锌浮铜回收铜矿物,然后采用高效活化剂回收浮选锌。Process mineralogy is conducted on a marmatite ore from Dulong by chemical multi-element analysis,microscopic observation,energy spectrum analysis of mono-mineral chemical components,MLA automated quantitative surveying technique to provide guidelines for marmatite extraction from the ore.The main results are obtained as follows:although the raw ore contains many metallic minerals,the main target minerals are sphalerite accounting for 7.715%and a small amount of hemimorphite;the results of energy spectrum analysis of sphalerite chemical components show that the sphalerite ore contains 12.04%iron and hence belongs to the marmatite;sphalerite has a close symbiosis relationship with pyrrhotite and chalcopyrite;almost 50%of-0.2 mm sphalerite exists as the intergrowth particles,which contains approximate 7%magnetite and 10%pyrrhotite.According to the above conclusion,it is recommended that the low intensity magnetic separation is first used to enrich magnetite and pyrrhotite;the flowsheet of floating copper and inhibiting zinc is adopted to recover copper-bearing minerals;and a highly effective activator is used to activate zinc-bearing minerals for flotation.

关 键 词：铁闪锌矿 选矿 工艺矿物学 都龙 

分 类 号：TD91[矿业工程—选矿]