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With the technological advancement and industrial upgrading of the petrochemical industry, the use of platinum (Pt) and palladium (Pd) in catalysts is also constantly increasing, which leads to a continuous increase in the spent petrochemical catalystsSpent petrochemical catalysts containing Pt and Pd. The spent petrochemical catalystsSpent petrochemical catalysts contain about 2000 g/t of platinum group metals (PGMs)Platinum Group Metals (PGMs) and has extremely high recovery value. Therefore, the development of technology for recovering PGMsPlatinum Group Metals (PGMs) from spent petrochemical catalystsSpent petrochemical catalysts has the effect of alleviating supply-demand contradiction. This article reviews the recovery methods of PGMsPlatinum Group Metals (PGMs) from spent petrochemical catalystsSpent petrochemical catalysts, analyzes the current recovery status of pyrometallurgy, hydrometallurgyHydrometallurgy, and combined enrichment method, and focuses on the application of pressurized alkaline solution in the recovery process of Pt and Pd from spent petrochemical catalystsSpent petrochemical catalysts. The pressurized alkaline solution technology can avoid the problem of high cost in acid solutionAcid solutions process wastewater treatment and is conducive to the recyclingRecycling of alumina resources, achieving the comprehensive utilization of various components of spent petrochemical catalystsSpent petrochemical catalysts, and providing new development directions and technical support for the recovery of Pt and Pd in catalysts.

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Research Progress on Recovery of Platinum and Palladium from Spent Petrochemical Catalysts

  • 会议论文

  • 发表日期：

    2025年

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  • Jibiao Han,
  • Qingfeng Xiong,
  • Quan Yang,
  • Ruiling Yuan,
  • Yong Li,
  • Xilong Wu,
  • Wangrui Ma

摘要

With the technological advancement and industrial upgrading of the petrochemical industry, the use of platinum (Pt) and palladium (Pd) in catalysts is also constantly increasing, which leads to a continuous increase in the spent petrochemical catalystsSpent petrochemical catalysts containing Pt and Pd. The spent petrochemical catalystsSpent petrochemical catalysts contain about 2000 g/t of platinum group metals (PGMs)Platinum Group Metals (PGMs) and has extremely high recovery value. Therefore, the development of technology for recovering PGMsPlatinum Group Metals (PGMs) from spent petrochemical catalystsSpent petrochemical catalysts has the effect of alleviating supply-demand contradiction. This article reviews the recovery methods of PGMsPlatinum Group Metals (PGMs) from spent petrochemical catalystsSpent petrochemical catalysts, analyzes the current recovery status of pyrometallurgy, hydrometallurgyHydrometallurgy, and combined enrichment method, and focuses on the application of pressurized alkaline solution in the recovery process of Pt and Pd from spent petrochemical catalystsSpent petrochemical catalysts. The pressurized alkaline solution technology can avoid the problem of high cost in acid solutionAcid solutions process wastewater treatment and is conducive to the recyclingRecycling of alumina resources, achieving the comprehensive utilization of various components of spent petrochemical catalystsSpent petrochemical catalysts, and providing new development directions and technical support for the recovery of Pt and Pd in catalysts.