浮选金铜矿废弃尾砂的综合利用价值研究  

Comprehensive Utilization of Abandoned Gold-copper Tailings Using Floating Method

作　　者：付超[1] 黄芳[2] 袁浩[1] 李亚运[1] 张黎[1] 刘煦晴[1] 

机构地区：[1]武汉工程大学化学与环境工程学院,湖北武汉430073 [2]黄石市环境保护研究所,湖北黄石435000

出　　处：《安全与环境工程》2016年第6期72-75,80,共5页Safety and Environmental Engineering

基　　金：武汉工程大学研究生教育创新基金项目(CX2015159)

摘　　要：采用化学成分分析、粒度分析、砂光薄片及XRD鉴定等方法,对湖北某金铜股份有限公司不同粒级尾砂组成、主要矿物特征及其综合利用价值进行研究。结果表明:不论是全尾砂还是进入尾矿库的压滤尾砂中,主要有用和有害元素含量都相近,有用元素Au、Cu、S含量较低,没有回收利用价值,但TFe含量均为12%左右,其中磁铁矿约8%,有潜在的回收利用价值;全尾砂和压滤尾砂中磁铁矿的崁布特征都与脉石连生,单体解离度随着粒径减小而增大,全尾砂中大于0.045mm粒级的磁铁矿单体解离度为84.35%,压滤尾砂中小于0.045mm粒级的磁铁矿单体解离度为92.31%;全尾砂中粒级大于0.045 mm的尾砂占50.8%,实际进入尾矿库的尾砂中粒级大于0.045mm的还有14%,存在加大充填比率综合利用的空间。Using identification methods such as chemical analysis, particle size analysis, identification of sanding sheets and XRD, this paper studies the composition of different size fractions, the characteristics of main minerals and the comprehensive utilization value of the tailings from a Gold ; Copper Limited Company in Hubei. The results show that in either the full tailings or the filter pressed tailings entering the tailings pond,the primary contents of useful and harmful elements are similar. The content of useful ele-ments is too low for recycling such as Au,Cu and S. The content of Fe are both up to 12%,in which the magnetite reaches 8% indicating the potential recycling value. The embedded characteristics of magnetite in the full tailings and filter pressed tailings are both gangue intergrowth,and the degree of mineral monomer liberation increases as the particle size reduces. The mineral monomer liberation degree of the magnetite with the size over 0. 045 mm from the full-tailings accounts for 84.35%,and that of the magnetite below 0. 045 mm from filter pressed tailings is 92.31%. In the full tailings,the mineral monomer liberation degree of the tailing with particle size greater than 0. 045 mm accounts for 50.8%,while still 14% of which actually enters the tailing pond. There is a great space for comprehensive utilization to increase the filling rate.

关 键 词：金铜矿 全尾砂 压滤尾砂 充填 干式堆存 综合利用 粒度 矿物特征 

分 类 号：X753[环境科学与工程—环境工程]