Pyro-metallurgical processing technology is widely used in the spent lithium-ion batteries recycling to recover valuable metals such as cobalt, nickel and copper, while lithium primarily remains in the slag. The effective valorization of slag, especially lithium recovery, constitutes a significant issue in contemporary pyrometallurgical processes due to the paucity of studies. This paper proposes a novel perspective by defining slag as an aggregate of engineered artificial minerals. Thus, not only the parameters of the beneficiation process can be studied to optimize the separation efficiency during treatment, but also the slag can be re-designed to optimize the carrier minerals of target elements and gangue mineral composition in the initial step with thermodynamic tools. In this paper, the engineering of artificial minerals (EnAM) method was applied to the slag design of the Li2O-CaO-Al2O3-SiO2-MnO system, and an initial attempt was made to apply EnAM method to the flotation study. A flotation study on enrichment effect of the target phase γ-LiAlO2 from thermodynamic controlled slags is conducted.

中文翻译：

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废旧锂离子电池火法回收路线含锂渣的增值：热力学控制和改性渣中γ-LiAlO2相的富集


火法冶金处理技术广泛应用于废旧锂离子电池回收中，回收钴、镍、铜等有价金属，而锂主要保留在炉渣中。由于研究的缺乏，炉渣的有效增值，特别是锂的回收，构成了当代火法冶金工艺中的一个重要问题。本文通过将矿渣定义为工程人造矿物的聚集体，提出了一种新颖的观点。因此，不仅可以研究选矿工艺参数以优化处理过程中的分离效率，而且可以在初始阶段利用热力学工具重新设计炉渣以优化目标元素的载体矿物和脉石矿物成分。本文将人工矿物工程（EnAM）方法应用于Li2O-CaO-Al2O3-SiO2-MnO体系的炉渣设计，并初步尝试将EnAM方法应用于浮选研究。对热力学控制渣中目标相γ-LiAlO2的富集效果进行了浮选研究。