从基于矿物阶段重建的金矿石灰中回收Cu,Co和Fe
Hong Yu1,2,3, Long Liu1, Guanhua Chen1
1School of Resources & Safety Engineering, Wuhan Institute of Technology, Wuhan 430073, China.
ACS omega
|August 12, 2024
概括
本研究引入了一种新的矿物阶段重建方法,用于从矿灰 (PyC) 中回收有价值的金属. 该过程成功地提取了铜 (Cu), (Co) 和铁 (Fe),大大提高了资源利用率.
科学领域:
- 金与材料科学 金与材料科学
- 化学工程是化学工程的重要组成部分.
- 环境科学 环境科学
背景情况:
- 由于金属等级较低和复杂的矿物学,矿石灰 (PyC) 造成了资源浪费.
- 现有的方法难以有效地从PyC中回收聚金属.
- 需要新的方法来提高PyC资源的再利用率.
研究的目的:
- 开发一种新的矿物阶段重建方法,从PyC中回收铜 (Cu), (Co) 和铁 (Fe).
- 为了优化减少烤和硫酸出过程,提高金属提取效率.
- 通过磁性分离实现高品质的铁缩物.
主要方法:
- 矿物阶段重建通过减少烤.
- 硫酸浸用于Cu和Co的回收.
- 磁性分离用于Fe度的回收.
- 优化烤和浸出参数 (温度,时间,气体成分,酸度等). ) 的情况.
主要成果:
- 在550°C进行30分钟的优化减少烤,含有30%的CO/N.
- 获得的最大Cu和Co提取率分别为86.15%和79.61%.
- 通过磁分离获得的铁度为63.08%Fe等级和98.91%的回收率.
- 矿物学分析证实了硫化铜的转化为氧化物/二级硫化物,并减少了Co (III) 到Co (II).
结论:
- 拟议的矿物相重建方法有效地从PyC中回收Cu,Co和Fe.
- 优化减少烤和浸显著提高金属回收率.
- 这个过程为PyC的价值化和资源保护提供了可持续的解决方案.
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