Communication Dans Un Congrès Année : 2023

Recovery of valuable metals from industrial leachates of spent ni metal hydride batteries by precipitation processes

Résumé

The recycling of spent nickel metal hydride (Ni-MH) batteries from hybrid electric vehicles serves as an increasingly-attractive secondary source of critical materials thanks to the recent development of hydrometallurgical processes.[1,2] Ni-MH batteries contain multitude of “critical” and “strategic” metals: La, Ce, Nd, Pr, Co, Mn, Ni, etc. and constitute a significant potential source of secondary raw materials with the marketing of approximately one billion cells every year for the past 15 years. Hydrometallurgical process consists in attacking the powders resulting from the grinding of batteries, by an acid (leaching step) to dissolve the elements in order to recover them by subsequent separation operations, such as precipitation.

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Dates et versions

hal-04752774 , version 1 (24-10-2024)

Identifiants

  • HAL Id : hal-04752774 , version 1

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Boris Guzhov, Laurent Cassayre, Nicolas Coppey, Béatrice Biscans. Recovery of valuable metals from industrial leachates of spent ni metal hydride batteries by precipitation processes. AIChE Annual Meeting, Nov 2023, Orlando (Florida), United States. ⟨hal-04752774⟩
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