Emerging application of biosurfactants in metal extraction

IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Current Opinion in Colloid & Interface Science Pub Date : 2023-10-27 DOI:10.1016/j.cocis.2023.101763
Irina Chernyshova, Vladislav Slabov, Hanumantha Rao Kota
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Abstract

Due to their environmental benefits and rich interfacial and colloidal properties, biosurfactants show promise as a platform for next-generation reagents in metal extraction using froth and foam flotation. While the development of biosurfactants as flotation bioreagents is still in its infancy, it has witnessed important progress in the past five years. Recent studies have not only demonstrated the ability of biosurfactants to compete with conventional collectors but have also provided valuable insights into the experimental parameters affecting these two separation processes. Despite this progress, the interactions of biosurfactants with mineral particles, metal ions, and air bubbles under flotation conditions remain far from being fully understood. There is growing evidence suggesting that these interactions are more complex than observed for conventional petroleum-based collectors. We summarize the recent progress and outline the main remaining knowledge gaps, aiming to generate more interest in the intriguingly complex multifunctional properties of biosurfactants as collectors.

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生物表面活性剂在金属萃取中的新应用
由于其环境效益和丰富的界面和胶体特性,生物表面活性剂有望成为利用泡沫和泡沫浮选提取金属的下一代试剂平台。虽然生物表面活性剂作为浮选生物反应器的发展还处于起步阶段,但近五年来取得了重要进展。最近的研究不仅证明了生物表面活性剂与传统收集器竞争的能力,而且还为影响这两种分离过程的实验参数提供了有价值的见解。尽管取得了这些进展,但生物表面活性剂与矿物颗粒、金属离子和气泡在浮选条件下的相互作用仍远未完全了解。越来越多的证据表明,这些相互作用比在传统的石油基收集器中观察到的更为复杂。我们总结了最近的进展并概述了主要的知识空白,旨在对生物表面活性剂作为收集器的复杂多功能特性产生更多的兴趣。
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来源期刊
CiteScore
16.50
自引率
1.10%
发文量
74
审稿时长
11.3 weeks
期刊介绍: Current Opinion in Colloid and Interface Science (COCIS) is an international journal that focuses on the molecular and nanoscopic aspects of colloidal systems and interfaces in various scientific and technological fields. These include materials science, biologically-relevant systems, energy and environmental technologies, and industrial applications. Unlike primary journals, COCIS primarily serves as a guide for researchers, helping them navigate through the vast landscape of recently published literature. It critically analyzes the state of the art, identifies bottlenecks and unsolved issues, and proposes future developments. Moreover, COCIS emphasizes certain areas and papers that are considered particularly interesting and significant by the Editors and Section Editors. Its goal is to provide valuable insights and updates to the research community in these specialized areas.
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