江西某微细粒选钨尾砂回收铜资源试验研究  

Experimental Study on Recovery of Copper Resource from Micro-fine Particle Tailings in Jiangxi

作　　者：余策恩 胡海祥 李瑞光 杨博皓 YU Ce'en;HU Haixiang;LI Ruiguang;YANG Bohao(College of Resources and Environmental Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China;Department of Science and Technology,Gannan University of Science and Technology,Ganzhou 341000,Jiangxi,China)

机构地区：[1]江西理工大学资源与环境工程学院,江西赣州341000 [2]赣南科技学院科技处,江西赣州341000

出　　处：《有色金属（选矿部分）》2024年第4期91-96,123,共7页Nonferrous Metals（Mineral Processing Section）

基　　金：江西省自然科学基金资助项目(20202BAB204014);赣州市重点研发计划项目(赣市科发[2019]60号)。

摘　　要：钨矿开采导致选钨尾砂长期堆存会产生社会安全和生态环境问题,开展选钨尾砂资源回收利用具有重要现实意义。江西某钨选厂开采钨矿预计产生选钨尾砂超9万t,对选厂现场尾砂和堆存尾砂采用一粗一扫两精浮选流程回收铜资源,针对选钨尾砂,进行了酯类药剂用量、捕收剂种类、捕收剂用量等条件试验,在此基础上进行了闭路试验。结果表明,现场尾砂可获得铜品位为21.145%、回收率为65.970%的铜精矿,堆存尾砂仅获得铜品位为12.512%、回收率为12.099%的铜精矿;以现场尾砂作为载体介质,对堆存尾砂进行载体浮选试验研究,最终获得铜品位13.520%、回收率49.123%的铜精矿。该工艺流程简单可行,选矿指标良好,可为选厂解决选钨尾砂长期堆存的问题,提高选厂经济效益。Long term storage of tungsten tailings can cause social safety and ecological environmental issues,and the utilization of tungsten tailings is of great practical significance.A tungsten concentrator in Jiangxi province is expected to produce over 90 oo0 tons of tungsten tailings during the mining process.The on-site tailings and stockpiled tailings of the concentrator are processed through a flotation procedure of one roughing,two cleanings,and one scavenging to recover copper resources.For the tungsten tailings,ester dosage,collector type,collector dosage and other conditions have been tested,and on this basis,lockedcycle tests were carried out.The results showed that on-site tailings can obtain copper concentrate with copper grade of 21.145%and copper recovery of 65.970%can be obtained.However,from the stockpiled tailings one can only obtain a copper concentrate with copper grade of 12.512%and copper recovery of 12.099%.Then,carrier flotation experiments were conducted on the stacked tailings using the on-site tailings as the carrier medium,and the results showed that a copper concentrate with copper grade of 13.520%and copper recovery of 49.123%can be obtained.This process flow is simple and feasible,with good beneficiation indicators,which can solve the problem of long-term storage of tungsten tailings for beneficiation plants and improve their economic benefits.

关 键 词：选钨尾砂 铜浮选 载体浮选 

分 类 号：TD952[矿业工程—选矿]