内蒙古某铜矿选矿试验研究
Experimental study on mineral processing of kamoa copper mine
秦雪聪 1张涛 1秦文华 1李国平 1韦明炎 1郭浩宇1
作者信息
- 1. 内蒙古工业大学 资源与环境工程学院,呼和浩特 010051
- 折叠
摘要
内蒙古某铜矿主要含以斑铜矿、辉铜矿为主的次生硫化铜,铜平均品位2.52%.根据该铜矿石的矿石性质特点,进行了铜的原矿粗磨选别-铜粗精矿再磨再选的条件研究,通过对浮选指标各影响因素的优化,得出了适合铜矿石粗选及精选的最佳工艺条件,原矿磨矿细度-0.074 mm、70%的条件下,活化剂Na2CO3+Na2S用量分别为1 000 g/t和300 g/t,组合捕收剂丁基黄药和酯-112分别为150 g/t和110 g/t.再经一次粗选、一次扫选获得铜尾矿,粗选铜精矿再磨后再经三次精选,中矿顺序返回处理后,最终可获得铜品位为25.74%的铜精矿,且铜的回收率达到了87.30%.
Abstract
The copper deposit in Inner Mongolia mainly contains secondary sulfide copper,predominantly chalcopyrite and chalcocite,with an average copper grade of 2.52%.Based on the characteristics of the ore,a study was conducted on the conditions of rough grinding and selection of original copper ore,regrinding and reselection of copper rough concentrate.By optimizing the influencing factors of flotation indicators,the best process conditions suitable for rough and fine selection of copper ore were obtained.The optimal conditions included an ore grinding fineness of-0.074 mm at 70%concentration,and the use of 1 000 g/t of activator Na2CO3+Na2S,and 300 g/t of collector combination of butyl xanthate and ester-112 at 150 g/t and 110 g/t respectively.After rough selection and scavenging,copper tailings were obtained,and the rough copper concentrate underwent regrinding followed by three stages of fine selection.After returning the middlings for further treatment,a final copper concentrate with a copper grade of 25.74%was obtained,achieving a copper recovery rate of 87.30%.
关键词
低品位铜矿石/次生硫化铜/再磨/回收率Key words
low grade copper ore/secondary copper sulfide/regrinding/recovery引用本文复制引用
基金项目
内蒙古自治区直属高校基本科研业务费项目(JY20220155)
内蒙古工业大学科学研究项目(ZZ202115)
出版年
2024
NETL
NSTL
万方数据