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在多光伏电池板中回收银的可回收溶剂:BeCl-EG-CuCl2溶剂系统

Zhihang Huang¹, Feihong Guo¹, Zhibao Xu²

¹Engineering Laboratory for Energy System Process Conversion and Emission Control Technology of Jiangsu Province, School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing 210042, China.

Journal of hazardous materials

|March 20, 2025

概括

这项研究介绍了一种环保的深度浸泡溶剂 (DES),用于高效地从光伏电池板中出白银 (Ag). 这种新的方法实现了高的Ag回收率,并显示出出色的可回收性,为传统的回收工艺提供了更环保的替代方案.

科学领域:

绿色化学绿色化学
材料科学材料科学材料科学
水电金术是指用水电金术进行金术.

背景情况:

传统的水力金回收通常涉及强化学品.
开发可持续的金属回收方法至关重要.
光伏电池板的回收利用对银矿开采提出了独特的挑战.

研究的目的:

开发一种环保的深度环氧化溶剂 (DES),用于高效的银 (Ag) 浸.
通过使用DES来研究Ag漏的动力学和机制.
评估基于DES的回收过程的可重复使用性和环境影响.

主要方法:

使用贝他因化和乙烯糖醇制备深度浸泡溶剂 (DES).
优化浸出条件,包括温度,时间,固体-液体比率和CuCl2度.
动力分析和反应机制研究.
生命周期评估 (LCA) 将DES回收与传统方法进行比较.

主要成果:

在优化条件下,实现了100%的纯Ag的Ag水效率和99.86%的光伏电池板.
确定了该过程是以35.02kJ·mol-1.1的激活能量控制的表面反应.
证明了高的DES可重复使用性 (95.87%的效率24个循环后).
LCA证实了DES回收的优越环境性能.

结论:

开发的DES系统为Ag回收提供了一种高效和可持续的方法.
该过程对环境无害,避免强酸和.
DES回收为光伏电池板回收提供了一个有前途的绿色替代方案.

关键词:

循环回收循环循环回收深层欧性溶剂深层欧性溶剂动态分析动态分析生命周期评估生命周期评估银银的回收利用方法

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