School of Metallurgy, Northeastern University, China.
School of Sciences, Northeastern University, China.
Waste Manag Res. 2021 Jan;39(1):43-52. doi: 10.1177/0734242X20969795. Epub 2020 Nov 16.
Platinum group metals (PGMs) are widely applied in the field of catalysts due to their excellent catalyst activity and high-temperature stability. The rapid generation of the waste catalyst has become the significant characteristic of PGMs with the accelerating consumption of limited PGMs nature resources. It is necessary to recover/recycle PGMs from a waste catalyst for both economic and environmental benefits. This paper reviews the PGMs recovery from waste catalysts using a metals smelting-collection process, which belongs to the main pyrometallurgical process, in the presence of various metal collectors, such as lead, copper, iron, matte, print circuit board (PCB) or reactive metals of calcium and magnesium. The current status of recovery of PGMs from waste catalysts through the addition of various metals as the collector is discussed and existing advantages and challenges are highlighted in this paper. Meanwhile, in the view of the promising processes of PGMs recovery, the influencing factors such as the economic, environmentally friendly, sustainable recycling, commercial scale, and low-grade materials are considered.
铂族金属（PGMs）由于其优异的催化剂活性和高温稳定性，在催化剂领域得到了广泛的应用。随着有限的 PGMs 自然资源的消耗加速，废催化剂的快速产生已成为 PGMs 的显著特征。为了经济和环境效益，有必要从废催化剂中回收/再循环 PGMs。本文综述了在各种金属捕集剂（如铅、铜、铁、冰铜、印刷电路板（PCB）或钙和镁的活性金属）存在下，通过金属熔炼收集工艺从废催化剂中回收 PGMs 的方法。讨论了通过添加各种金属作为捕集剂从废催化剂中回收 PGMs 的现状，并强调了现有优势和挑战。同时，鉴于 PGMs 回收的有前途的工艺，考虑了经济、环保、可持续回收、商业规模和低品位材料等影响因素。
