Recycling of Critical Metals from Light‐Emitting Diodes

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-08-22 DOI:10.1002/cite.202400043

Michael Peer, Thomas Fehn, Alexander Hofmann, Burkhard Berninger, Werner Kunz

引用次数: 0

Abstract

Light‐emitting diodes (LED) are widely used for energy savings. A lot of different materials and especially metals are needed to produce LED. End‐of‐life LED contain critical metals like indium or rare earth elements. In this study, first a thermochemical step is used to recover the critical metal indium from LED with hydrochloric acid‐containing vapor from polyvinyl chloride as chlorine source. Then, the LED residue is leached with sulfuric acid and hydrogen peroxide. From the leachate, the heavy rare earth element lutetium can be extracted with n‐octanol and tributyl phosphate.

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从发光二极管中回收关键金属

发光二极管（LED）被广泛用于节约能源。生产 LED 需要大量不同的材料，尤其是金属。报废的 LED 含有铟或稀土元素等关键金属。在这项研究中，首先采用热化学步骤，以聚氯乙烯中的含盐酸蒸汽为氯源，从 LED 中回收关键金属铟。然后，用硫酸和过氧化氢浸出 LED 残留物。从浸出液中，可使用正辛醇和磷酸三丁酯提取重稀土元素镥。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.