德兴铜矿矿石浮选的工艺矿物学研究  

Process Mineralogy in Ore Flotation of the Dexing Copper Deposit

作　　者：高知睿 常玉虎 赵元艺[1] 王裕先[1] 孙义伟 GAO Zhi-rui;CHANG Yu-hu;ZHAO Yuan-yi;WANG Yu-xian;SUN Yi-wei(Institute of Mineral Resource,CAGS/ MLR key laboratory of Metallogeny and Mineral Assessment,lnsitute of Mineral Resourses,Chinese Academy of Geological Sciences,Beijing 100037,China;Tianjin Center,China Geological Survey,Tianjin 300170,China;China University of Geosciences（Beijing）,Beijing 100083,China)

机构地区：[1]中国地质科学院矿产资源研究所国土资源部成矿作用与矿产资源评价重点实验室,北京100037 [2]中国地质调查局天津地质调查中心,天津300170 [3]中国地质大学(北京),北京100083

出　　处：《矿物岩石地球化学通报》2018年第3期539-554,共16页Bulletin of Mineralogy, Petrology and Geochemistry

基　　金：国土资源部公益性行业科研专项(201111020-05,200911007-01,201311072-01);中国地质科学院基本业务费(YK1710-0)

摘　　要：德兴铜矿是我国乃至世界著名的低品位多金属岩型铜矿之一,多年来德兴铜矿在矿石浮选过程中对Cu元素进行了大量的研究,而对Re、Co、Au、Ag等伴生元素研究甚少。本文利用X射线衍射、扫描电镜、物相分析等方法对德兴铜矿大山和泗州两个选矿厂不同浮选阶段的粉末样品进行了分析。研究结果表明,原矿中主要金属硫化物为黄铁矿、黄铜矿和辉钼矿,分别富集于硫精矿、铜精矿、钼精矿中。Re和Co主要以类质同象形式存在于硫化物中,Au和Ag分别以自然金和碲化物为主要载体。钼精矿中Re、硫精矿中Co、精铜中Au和钼粗精矿中Ag的含量在德兴铜矿浮选流程中最高,同时金红石、铂族元素、尾矿中的云母等均可以进行综合回收利用,以便提高矿山企业的经济效益。The Dexing copper deposit is one of the famous porphyry copper deposits with low grade of polymetals in China.In the past years,only process mineralogy in ore flotation Cu was studied. The studies of other metals,such as Re,Co,Au and Ag,are lacked. In this study,XRD,SEM,EDS and phase analysis were conducted on ore samples from different flotation stages of Dashan and Sizhou concentrator. The dominant sulfides include pyrite,chalcopyrite and molybdenite,which are enriched in sulfur,copper and molybdenum concentrates. Re and Co are as isomorphism hosting in the lattice of sulfide,while Au and Ag are mainly hosted in natural gold and tellurides. Re,Co,Au and Ag are highest in molybdenum,sulfur,copper,molybdenum rough concentrates of Dexing copper ore flotation process,respectively. Rutile,platinum group elements,mica in tailings can be comprehensively recovered and utilized,which can improve economic performance of mining company.

关 键 词：Re-Co-Au-Ag元素 矿物学 地球化学 浮选过程 德兴铜矿 

分 类 号：P618.41[天文地球—矿床学]