Journal of Sustainable Metallurgy ( IF 2.5 ) Pub Date : 2022-01-12 , DOI: 10.1007/s40831-021-00486-5 A. Rukini 1 , M. A. Rhamdhani 1 , G. A. Brooks 1 , A. Van den Bulck 2
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Hydrogen is projected to be not only a source of clean fuel energy, but also a reducing agent for metals production in the current industrial decarbonization effort. Currently, hydrogen is still not common to be used in many metals production. Hydrogen is only commercially utilized in a limited number of refractory metals (i.e., W, Mo) and partly utilized in Ni and Co metals production. Hydrogen reduction of metal oxides has been extensively studied at laboratory scale, particularly in regard to kinetics and reaction mechanism. These studies provided the fundamental knowledge useful for the development of the industrial metals production process. Recently, experimental approaches, current applications, and technologies related to the hydrogen reduction of metal oxides have been further developed. The current paper reviews selected key studies and provides information on the current status and applications of hydrogen for reduction of metal oxides (with a focus on reduction kinetics and mechanisms of non-ferrous oxides). This study summarized that hydrogen has the potential to be used to recover valuable metal from secondary resources (e.g., Zn from EAF dust, Pb from slag) but further detailed fundamental studies are required for improved processes. The use of hydrogen was also found to be useful for a number of advanced material processing, beyond extractive metallurgy perspective.
Graphical Abstract
中文翻译：
使用氢气生产金属和还原金属氧化物：综述
预计氢气不仅是清洁燃料能源的来源，而且还是当前工业脱碳努力中金属生产的还原剂。目前，氢气在许多金属生产中仍然不常见。氢仅在有限数量的难熔金属（即 W、Mo）中用于商业用途，部分用于 Ni 和 Co 金属生产。金属氧化物的氢还原已在实验室规模进行了广泛的研究，特别是在动力学和反应机理方面。这些研究为工业金属生产工艺的发展提供了有用的基础知识。最近，与金属氧化物的氢还原相关的实验方法、当前应用和技术得到了进一步的发展。本论文回顾了选定的关键研究，并提供了有关氢气还原金属氧化物的现状和应用的信息（重点是有色金属氧化物的还原动力学和机制）。这项研究总结说，氢有可能用于从二次资源中回收有价值的金属（例如，来自电弧炉粉尘的锌，来自炉渣的铅），但需要进一步详细的基础研究来改进工艺。除了提取冶金学的观点之外，还发现氢的使用对许多先进的材料加工很有用。这项研究总结说，氢有可能用于从二次资源中回收有价值的金属（例如，来自电弧炉粉尘的锌，来自炉渣的铅），但需要进一步详细的基础研究来改进工艺。除了提取冶金学的观点之外，还发现氢的使用对许多先进的材料加工很有用。这项研究总结说，氢有可能用于从二次资源中回收有价值的金属（例如，来自电弧炉粉尘的锌，来自炉渣的铅），但需要进一步详细的基础研究来改进工艺。除了提取冶金学的观点之外，还发现氢的使用对许多先进的材料加工很有用。
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