Magnetic nanohydrometallurgy: Principles and concepts applied to metal ion separation and recovery

IF 3.7 3区 工程技术 Q2 ENGINEERING, CHEMICAL
Henrique E. Toma
{"title":"Magnetic nanohydrometallurgy: Principles and concepts applied to metal ion separation and recovery","authors":"Henrique E. Toma","doi":"10.1016/j.cherd.2025.03.003","DOIUrl":null,"url":null,"abstract":"<div><div>Magnetic nanohydrometallurgy (MNHM) can be seen as a nanotechnological version of hydrometallurgy employing complexing molecules attached to superparamagnetic nanoparticles instead of conventional chemical agents and extracting solvents. In essence, the functionalized nanoparticles preserve chemical mobility and provide a high surface concentration of complexing groups for interacting with metal ions. After the capture, because of their strong magnetism, the particles can be easily removed with a magnet, allowing a rapid and clean separation of the sequestered metal ions. In MNHM, similarly to hydrometallurgy, the metal ions are discriminated by and released from the complexing nanoparticles according to their relative stability constants, affording a round operational scheme. MNHM, however, exhibits greater advantages due to its simplicity and greener performance than hydrometallurgy since it does not use solvent extraction or ionic exchange procedures. In addition, on the laboratory scale, the whole process can be completely automated. However, although both MNHM and hydrometallurgy apply complexing agents to capture metal ions, the fundamental aspects of the coordination chemistry of complexing nanoparticles are still missing in the literature. Since they are essential to understanding the kinetics and equilibrium reactions involved, this paper is dedicated to their appreciation, providing an updated overview of the MNHM process and its possible application in the recovery of strategic elements, such as Cu, Co, Ag, Hg, Au, and the lanthanide ions.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"216 ","pages":"Pages 251-269"},"PeriodicalIF":3.7000,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Engineering Research & Design","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S026387622500111X","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0

Abstract

Magnetic nanohydrometallurgy (MNHM) can be seen as a nanotechnological version of hydrometallurgy employing complexing molecules attached to superparamagnetic nanoparticles instead of conventional chemical agents and extracting solvents. In essence, the functionalized nanoparticles preserve chemical mobility and provide a high surface concentration of complexing groups for interacting with metal ions. After the capture, because of their strong magnetism, the particles can be easily removed with a magnet, allowing a rapid and clean separation of the sequestered metal ions. In MNHM, similarly to hydrometallurgy, the metal ions are discriminated by and released from the complexing nanoparticles according to their relative stability constants, affording a round operational scheme. MNHM, however, exhibits greater advantages due to its simplicity and greener performance than hydrometallurgy since it does not use solvent extraction or ionic exchange procedures. In addition, on the laboratory scale, the whole process can be completely automated. However, although both MNHM and hydrometallurgy apply complexing agents to capture metal ions, the fundamental aspects of the coordination chemistry of complexing nanoparticles are still missing in the literature. Since they are essential to understanding the kinetics and equilibrium reactions involved, this paper is dedicated to their appreciation, providing an updated overview of the MNHM process and its possible application in the recovery of strategic elements, such as Cu, Co, Ag, Hg, Au, and the lanthanide ions.
磁性纳米湿法冶金学:应用于金属离子分离和回收的原理和概念
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Chemical Engineering Research & Design
Chemical Engineering Research & Design 工程技术-工程:化工
CiteScore
6.10
自引率
7.70%
发文量
623
审稿时长
42 days
期刊介绍: ChERD aims to be the principal international journal for publication of high quality, original papers in chemical engineering. Papers showing how research results can be used in chemical engineering design, and accounts of experimental or theoretical research work bringing new perspectives to established principles, highlighting unsolved problems or indicating directions for future research, are particularly welcome. Contributions that deal with new developments in plant or processes and that can be given quantitative expression are encouraged. The journal is especially interested in papers that extend the boundaries of traditional chemical engineering.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信