Recycling method of valuable metal, and recovered valuable metal alloy particles and sulfate solution therefrom

Abstract

A recycling method of a valuable metal according to the present invention comprises the steps of: preparing Ni-Co-Mn alloy particles having a compound containing lithium and aluminum located on the surface thereof; subjecting the alloy particles to primary acid-leaching to selectively remove the compound containing lithium and aluminum located on the surface of the alloy particles; and obtaining valuable metal recovery alloy particles, from which the compound containing lithium and aluminum has been removed.