铜镍氧硫混合矿焙烧-浸出过程铜、镍、铁的转化  

Transformation of cooper,nickel and iron of oxide-sulfide mixed copper-nickel ore during roasting-leaching process

作　　者：崔富晖 牟文宁[2,3] 顾兴利 许茜[4] 翟玉春[2,3] CUI Fu-hui MU Wen-ning GU Xing-li XU Qian ZHAI Yu-chtm(School of Material and Metallurgy, Northeastern University, Shenyang 110819, China School of Resources and Materials, Northeastem University at Qinhuangdao, Qinhuangdao 066004, China Key laboratory of Clean Conversion and Efficient Utilization to Resource in Qinhuangdao, Qinhuangdao 066004, China School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China)

机构地区：[1]东北大学冶金学院,沈阳110819 [2]东北大学(秦皇岛分校)资源与材料学院,秦皇岛066004 [3]秦皇岛市资源清洁转化与高效利用重点实验室,秦皇岛066004 [4]上海大学材料科学与工程学院,上海200072

出　　处：《中国有色金属学报》2017年第7期1471-1478,共8页The Chinese Journal of Nonferrous Metals

基　　金：国家重点基础研究发展计划资助项目(2014CB643405);国家自然科学基金资助项目(51204036);河北省高等学校青年拔尖人才项目(BJ201604);中央高校基本科研业务费资助项目(N152304010)~~

摘　　要：随着硫化镍矿资源的日趋枯竭,铜镍氧硫混合矿的利用将会愈发受到关注。通过对原矿进行差热-热重、XRD以及热力学分析,揭示焙烧过程矿石矿相的转变历程,研究铜镍氧硫混合矿焙烧过程中矿物粒度、焙烧温度和焙烧时间对铜、镍、铁转化的影响,探索浸出过程中溶剂、液固比、浸出温度及浸出时间对铜、镍、铁浸出的影响。结果表明:矿物粒度为74~80μm、焙烧温度为600℃、焙烧时间为2 h、选择水作为浸出溶剂、浸出温度为60℃、液固比为6:1、浸出时间2 h时,镍和铜的浸出率达到最高分别为46.25%和96.27%,铁的浸出率低于1%。With the resource shortage of nickel sulfide ore, the new process is needed to treat the oxide-sulfide mixed copper-nickel mixed ore. DTA-TG and XRD of ore at different roasting temperatures and thermodynamic analysis were used to reveal the phase transition at the roasting stage. The influences of mineral particle size, roasting temperature and roasting time on the element transformation of copper, nickel and iron were studied at the roasting process of oxide-sulfide mixed copper-nickel ore. The influences of different leaching solvents, liquid-solid ratio, leaching temperature and leaching time on the leaching of copper, nickel and iron were studied during leaching process. The results show that when the particle size of mineral powder is 74-80μm, the roasting temperature is 600℃, roasting time is 2 h, using water as solvent, leaching temperature is 60℃, liquid-solid ratio is 6：1 and leaching time is 2 h, the leaching ratios of copper and nickel reach the maximum, 46.25% and 96.27%, respectively.

关 键 词：铜镍氧硫混合矿 焙烧 浸出 转化 

分 类 号：TF815[冶金工程—有色金属冶金]