相关实验视频
Updated: Jan 28, 2026

06:15
Preparation of Binary and Ternary Deep Eutectic Systems
Published on: October 31, 2019
12.7K
电子废物回收利用中的深度环氧化溶剂:制备,性能和水力金金属回收
Lakshmi Kanth Moganti1, Deblina Dutta1
1Department of Environmental Science and Engineering, School of Engineering and Sciences, SRM University-AP Amaravati Andhra Pradesh 522240 India deblina.d@srmap.edu.in.
RSC advances
|January 26, 2026
概括
深度环氧化溶剂 (DES) 从电子废物中提供高效的绿色金属回收. 这些溶剂对铜,金和银等关键金属显示出高效率,为传统方法提供了可持续的替代方案.
科学领域:
- 绿色化学和材料科学 绿色化学和材料科学
- 水电金和金属回收技术
- 废物回收利用和循环经济
背景情况:
- 深度浸泡溶剂 (DES) 正在成为传统矿物酸的环保替代品,用于金属洗.
- 它们独特的特性,包括低挥发性,高极性和金属复合能力,使它们适合从复杂的矩阵 (如印刷电路板 (PCB)) 中回收金属.
研究的目的:
- 批判性地审查从PCB中回收金属的DES的制备,物理化学性质和浸出机制.
- 评估DES在电子废物回收利用中的应用现状,重点关注提取效率,可回收性和溶剂降解.
主要方法:
- 对2003-2024年期间的出版物进行了结构化的文献搜索,使用与DES制备,金属回收和PCB相关的关键词.
- 专注于报告高提取效率 (85-100%),浸出机制,可回收性和溶剂降解的研究.
主要成果:
- 像基于胆化物配方的DES在温和条件下 (40-100°C) 显示出铜 (100%), (100%),黄金 (≥95%) 和银 (100%) 的高回收率.
- 新兴趋势包括氧化辅助漏和与电化学回收方法的整合.
- 诸如高粘度,质量转移限制和不完全回收能力等挑战需要进一步调查.
结论:
- 对于从电子废物中回收贵金属,DESs非常有效,提供了一种可持续的水力金方法.
- 需要进一步的研究来解决局限性问题,并优化DES系统以实现可扩展的,与循环经济一致的金属回收.
相关概念视频
Properties of Transition Metals
29.7K
Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.
29.7K
Solvents
70.5K
A solvent is a substance, most often a liquid, that can dissolve other substances. Here, the substance being dissolved is called a solute. When a solvent and a solute combine, they form a solution - a homogenous mixture of both the solvent and the solute. Water is a universal biological solvent. Its polar structure allows it to dissolve many other polar compounds. The ability of water to dissolve is governed by a balance between water molecules binding to each other and binding to the solute.
A...
A...
70.5K
Bonding in Metals
52.3K
Metallic bonds are formed between two metal atoms. A simplified model to describe metallic bonding has been developed by Paul Drüde called the “Electron Sea Model”.
52.3K
Alkali Metals
24.5K
Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals
Table 1: Properties of the alkali metals
24.5K
Metal-Ligand Bonds
24.2K
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
24.2K
Titration in Nonaqueous Solvents
1.4K
Most acid-base titrations are performed in an aqueous medium. In aqueous titrations, water competes with weaker acids or bases for proton donation or acceptance, leading to ambiguous endpoints in the titration curve. Water also affects the partial ionization of weak acids or bases. For example, water accepts a proton from acetic acid to form hydronium and acetate ions. The hydronium ion formed is a stronger acid than acetic acid, and the acetate ion is a stronger base than water. As a result,...
1.4K

