Recover of Cu from copper oxide ore using magnetic separation-leaching process and magnetism study of copper-containing minerals

被引：1
|
作者：
Liang, Zhian [1 ,2 ,3 ]
Wang, Qiankun [2 ,3 ]
Tang, Langfeng [2 ,3 ]
Duan, Hao [2 ,3 ]
Chen, Luzheng [1 ]
Xue, Zixing [1 ]
Li, Yongli [2 ,3 ]
机构：
[1] Kunming Univ Sci & Technol, Fac Land Resource Engn, Kunming 650093, Peoples R China
[2] Xiamen Zijin Technol Min & Met Ltd, Xiamen 361101, Peoples R China
[3] State Key Lab Comprehens Utilizat Low Grade Refrac, Longyan 364200, Peoples R China
来源：
MINERALS ENGINEERING | 2024年 / 218卷
关键词：
Magnetic separation; Copper oxide mineral; Magnetic susceptibility; Magnetic moment calculation; TOTAL-ENERGY CALCULATIONS; FLOTATION; EFFICIENCY; MALACHITE; ACTIVATION;
D O I：
10.1016/j.mineng.2024.109006
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Copper oxide ore is the important component of copper resources and cannot be effectively recovered by conventional beneficiation method. In this work, the low-content and complex copper oxide ore was efficiently recovered by magnetic-leaching process. Under the optimized magnetic separation condition (feed ore size: -2 mm, rod matrix size: 3 mm, magnetic induction intensity: 1.5 T, pulsating frequency: 100 r/min), copper grade of the concentrate was enriched from 1.50 % to 8.60 % with copper recovery of 76.63 %. Compared with direct leaching, magnetic-leaching process decreased acid consumption for 1 t Cu from 13.63 t to 2.92 t. Magnetic susceptibility measurement and DFT calculation results indicated that the Cu atom of played a critical role in determining magnetism for copper-containing minerals.
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页数：7
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