Antimony Recovery from End-of-Life Products and Industrial Process Residues: A Critical Review

被引:149
作者
Dupont D. [1 ]
Arnout S. [2 ]
Jones P.T. [3 ]
Binnemans K. [1 ]
机构
[1] Department of Chemistry, KU Leuven, Celestijnenlaan 200F, P.O. Box 2404, Heverlee
[2] InsPyro NV, Kapeldreef 60, Heverlee
[3] Department of Materials Engineering, KU Leuven, Kasteelpark Arenberg 44, P.O. Box 2450, Heverlee
关键词
Antimony; Recovery; Recycling; Secondary sources;
D O I
10.1007/s40831-016-0043-y
中图分类号
学科分类号
摘要
Antimony has become an increasingly critical element in recent years, due to a surge in industrial demand and the Chinese domination of primary production. Antimony is produced from stibnite ore (Sb2O3) which is processed into antimony metal and antimony oxide (Sb2O3). The industrial importance of antimony is mainly derived from its use as flame retardant in plastics, coatings, and electronics, but also as decolourizing agent in glass, alloys in lead-acid batteries, and catalysts for the production of PET polymers. In 2014, the European Commission highlighted antimony in its critical raw materials report, as the element with the largest expected supply–demand gap over the period 2015–2020. This has sparked efforts to find secondary sources of antimony either through the recycling of end-of-life products or by recovering antimony from industrial process residues. Valuable residues are obtained by processing of gold, copper, and lead ores with high contents of antimony. Most of these residues are currently discarded or stockpiled, causing environmental concerns. There is a clear need to move to a more circular economy, where waste is considered as a resource and zero-waste valorization schemes become the norm, especially for rare elements such as antimony. This paper gives a critical overview of the existing attempts to recover antimony from secondary sources. The paper also discusses the possibility of waste valorization schemes to guarantee a more sustainable life cycle for antimony. © 2016, The Minerals, Metals & Materials Society (TMS).
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页码:79 / 103
页数:24
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