氧化剂在从硫化物矿物中提取金属的作用在深度欧性溶剂中的作用
Ehsan Bidari1, Chandra Widyananda Winardhi2, Jose Ricardo da Assuncao Godinho2
1Institut für Anorganische Chemie, Technische Universität Bergakademie Freiberg, 09599 Freiberg, Germany.
ACS omega
|April 1, 2024
概括
深度环氧溶剂 (DESs) 显示出离子金的潜力,乙显示出硫化物矿物质和黄金,银和等贵金属的增强水,特别是氧化剂.
科学领域:
- 金与材料科学 金与材料科学
- 绿色化学 绿色化学
背景情况:
- 对于离子金来说,正在探索深度性溶剂 (DES),但它们的工业可行性仍在争论中.
- 现有研究对DESs在金应用中的环境效益和工艺效率提出了相互矛盾的观点.
研究的目的:
- 为了研究硫化物漂浮缩物中以化物为基础的DES乙烯的浸出效率.
- 为了比较乙醇与化物水溶液在浸出实验中的性能.
- 了解氧化剂对DESs与水性介质中的浸出行为的影响.
主要方法:
- 在含有Au,Ag和Te的硫化物漂浮缩物上进行了水实验.
- 乙和水性化物溶液被用作浸出介质.
- 使用常见的氧化剂 (I2,CuCl2,FeCl3,H2O2,O2) 来研究它们的影响.
主要成果:
- 乙和水溶液在非氧化洗过程中表现相似.
- 当有氧化剂存在时,乙呈现出更高的漏效率.
- 在乙醇中,酸盐的氧化速度很慢,而酸盐的氧化速度很快.
- 氧化剂:I2 > CuCl2 > FeCl3,而H2O2和O2的效率较低.
- 黄金银化物成功地使用乙烯酸出水.
结论:
- 乙可以有效地出硫化物矿物和相关的贵金属,特别是在氧化条件下.
- 氧化剂的选择显著影响了乙醇中的漏效率.
- 乙为处理具有挑战性的矿石提供了潜在的替代方案,例如那些含有金银化物的矿石,这些矿石对于化物出有问题.
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