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使用二甲基二甲基二甲基碳酸盐从金溶液中高效地回收Au (I)

Peng Yang^1,2, Xinrong Li¹, Shuliang Chen¹

¹Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China.

|May 13, 2024

概括

二甲基二甲基碳酸盐 (SDD) 提供了一种有效的方法,可以从硫酸盐出溶液中回收黄金. 这种环保的工艺使得黄金回收和漂水剂的回收成为可能,从而增强了可持续的水电金.

科学领域:

水电金术是指用水电金术进行金术.
材料科学材料科学材料科学
环境化学环境化学

背景情况:

硫酸硫酸盐是一种可持续的,无毒的替代化物用于黄金漏的替代品.
从硫酸硫酸盐溶液中获得有限的金离子回收阻碍了其广泛应用.

研究的目的:

为了证明使用二甲基二甲基二碳酸盐 (SDD) 沉的黄金回收的可行性.
评估黄金回收后氨和液的可回收性.
为了阐明SDD的黄金回收机制.

主要方法:

从硫酸硫酸盐浸溶液中通过SDD沉回收金离子.
分析黄金回收效率和能力.
评估氨和硫酸硫酸盐回收利用的矿石浸率.
密度函数理论 (DFT) 计算以验证相互作用机制.

主要成果:

SDD有效地沉金离子,在1分钟内实现几乎完全的恢复.
获得了7.99公斤/的高黄金回收能力.
回收氨和硫酸硫酸盐并没有显著影响黄金矿石漏率 (保持在81%).
确定了SDD−和Au[(S2O3) 2) 3−之间的配体交换是恢复机制.

结论:

SDD沉是一种可行,高效和环保的方法,用于从硫酸盐溶液中回收黄金.
该过程允许回收关键的漏剂,提高可持续性.
SDD沉显示出在黄金回收中大规模工业应用的巨大潜力.

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