利用磁选-浸出工艺从氧化铜矿石中回收铜以及含铜矿物的磁学研究

IF 4.9 2区工程技术 Q1 ENGINEERING, CHEMICAL

Minerals Engineering Pub Date : 2024-09-24 DOI:10.1016/j.mineng.2024.109006

Zhian Liang , Qiankun Wang , Langfeng Tang , Hao Duan , Luzheng Chen , Zixing Xue , Yongli Li

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引用次数: 0

摘要

氧化铜矿是铜资源的重要组成部分，传统选矿方法无法有效回收。本研究采用磁浸工艺对低含量、复杂的氧化铜矿进行了有效回收。在优化的磁选条件下（给矿粒度为 -2 mm，磁棒基体粒度为-2 mm，磁棒基体尺寸：3 mm，磁感应强度：1.5 T，脉动频率：100 r/min）下，精矿的铜品位从 1.50 % 提高到 8.60 %，铜回收率达到 76.63 %。磁感应强度测量和 DFT 计算结果表明，铜原子对含铜矿物的磁性起着关键作用。

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

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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来源期刊

Minerals Engineering 工程技术-工程：化工

CiteScore

8.70

自引率

18.80%

发文量

519

审稿时长

81 days

期刊介绍： The purpose of the journal is to provide for the rapid publication of topical papers featuring the latest developments in the allied fields of mineral processing and extractive metallurgy. Its wide ranging coverage of research and practical (operating) topics includes physical separation methods, such as comminution, flotation concentration and dewatering, chemical methods such as bio-, hydro-, and electro-metallurgy, analytical techniques, process control, simulation and instrumentation, and mineralogical aspects of processing. Environmental issues, particularly those pertaining to sustainable development, will also be strongly covered.