内蒙古某铜矿选矿试验研究  

Experimental study on mineral processing of kamoa copper mine

作　　者：秦雪聪 张涛[1] 秦文华[1] 李国平 韦明炎 郭浩宇 QIN Xuecong;ZHANG Tao;QIN Wenhua;LI Guoping;WEI Mingyan;GUO Haoyu(School of Resources and Environmental Engineering,Inner Mongolia University of Technology,Hohhot 010051,China)

机构地区：[1]内蒙古工业大学资源与环境工程学院,呼和浩特010051

出　　处：《内蒙古工业大学学报（自然科学版）》2024年第3期284-288,共5页Journal of Inner Mongolia University of Technology：Natural Science Edition

基　　金：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)。

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Na_(2)CO_(3)+Na_(2)S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%。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 1000 g/t of activator Na_(2)CO_(3)+Na_(2)S,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 

分 类 号：TK[动力工程及工程热物理]