摘要
为了研究里伍铜矿浮选尾矿工艺矿物学特征,采用了化学方法和显微镜观察等技术手段。研究发现,里伍铜矿浮选尾矿中主要金属矿物有磁黄铁矿、黄铜矿和铁闪锌矿等,脉石矿物有石英、绿泥石和斜长石等。尾矿粒度较粗,+0.097 mm粒级占67.6%。-0.200^+0.074 mm粒级之间,铜分布率为57.12%,锌分布率为66.70%。金和银嵌布粒度细,分布率与铜分布率接近正相关。尾矿中大部分磁黄铁矿、黄铜矿和铁闪锌矿没有单体解离,互相复杂连生。采用浮选等传统选矿方法,成本相对较高;采用微生物冶金技术回收尾矿中铜、锌等金属更具可行性。
The process mineralogy of polymetallic low-grade tailings of Liwu copper ore was investigated by chemical methods and microscopic observation,The results show that the major metallic minerals consist of pyrrhotite,chalcopyrite and marmatite.The major gangue minerals are quartz,chlorite,and plagioclase.The content of the coarse tailings of ＋0.097 mm is 63.2%, the copper content of the tailings of-0.200-0.074 mm is 57.12% of total copper, Znic content of the tailings of-0.200-＋0.074 mm is 66.70% of total Znic.The distribution rates of the fine-disseminated gold and silver had a positive correlation with the distribution rate of copper.It was difficult for pyrrhotite, chalcopyrite and marmatite to liberate fully due to their complex intergrowth relationship. Compared to flotation, it is cost-effective that biohydrometallurgy is used to recover copper and znic from Liwu copper ore tailings.
出处
《黄金科学技术》
CSCD
2015年第6期70-74,共5页
Gold Science and Technology
基金
公益性行业科研专项"德兴铜矿铼等元素分布规律研究"(编号:201311072-02)
国家自然科学基金项目"成矿系统中成矿流体演化与成矿--以内蒙赤峰边家三种类型多金属矿床为例"(编号:41272110)联合资助
关键词
尾矿
工艺矿物学
黄铜矿
铁闪锌矿
金
tailings
process mineralogy
chalcopyrite
marmatite
gold
