回收铅酸蓄电池中废铅膏的新兴电化学技术

IF 2.5 3区 材料科学 Q3 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY
Lun-Ao Ouyang, Yapeng He, Puqiang He, Jianfeng Zhou, Hui Huang, Zhongcheng Guo
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引用次数: 0

摘要

从报废铅酸蓄电池中提取的废铅膏(SLP)被视为一种重要的二次铅资源。事实证明,从废铅酸蓄电池中回收铅对经济发展和环境保护都具有重要意义。有人提出了从 SLP 中回收金属铅或氧化铅的火法冶金和湿法冶金方法。然而,传统的火法冶金技术存在能耗高和环境污染严重的问题,而湿法冶金工艺则存在试剂消耗过多和废水排放的问题。得益于这些技术优势,电化学技术在 SLP 回收中的应用在过去几年中引起了广泛关注。本综述全面总结了回收 SLP 的电化学方法、技术可行性和改进措施。这些方法主要包括浸出-电积、直接固相电解、悬浮电解、离子液体电解和熔盐电解。本文讨论了 SLP 电化学回收的最新研究进展。此外,还讨论了目前电化学处理可溶性磷酸盐所面临的挑战和问题,包括能耗和杂质行为。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Emerging Electrochemical Techniques for Recycling Spent Lead Paste in Lead-Acid Batteries

Emerging Electrochemical Techniques for Recycling Spent Lead Paste in Lead-Acid Batteries

Spent lead paste (SLP) obtained from end-of-life lead-acid batteries is regarded as an essential secondary lead resource. Recycling lead from spent lead-acid batteries has been demonstrated to be of paramount significance for both economic expansion and environmental preservation. Pyrometallurgical and hydrometallurgical approaches are proposed to recover metallic lead or lead oxide from SLP. However, traditional pyrometallurgical techniques are plagued by high energy consumption and substantial environmental pollution, whereas hydrometallurgical processes suffer from excessive reagent consumption and wastewater emissions. Benefiting from the technical advantages, electrochemical techniques in the recycling of SLP have attracted extensive interest in the last few years. This review provides a comprehensive summary of electrochemical approaches, technical feasibility, and improvements in recycling SLP. These methods mainly consist of leaching-electrowinning, direct solid-phase electrolysis, suspension electrolysis, electrolysis in ionic liquids, and electrolysis in molten salt. The recent research advances in electrochemical recycling of SLP are discussed. The present state-of-the art challenges and issues including energy consumption and impurity behavior in electrochemical treating SLP are also addressed.

Graphical Abstract

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来源期刊
Journal of Sustainable Metallurgy
Journal of Sustainable Metallurgy Materials Science-Metals and Alloys
CiteScore
4.00
自引率
12.50%
发文量
151
期刊介绍: Journal of Sustainable Metallurgy is dedicated to presenting metallurgical processes and related research aimed at improving the sustainability of metal-producing industries, with a particular emphasis on materials recovery, reuse, and recycling. Its editorial scope encompasses new techniques, as well as optimization of existing processes, including utilization, treatment, and management of metallurgically generated residues. Articles on non-technical barriers and drivers that can affect sustainability will also be considered.
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