An environmentally friendly method for extraction of Cobalt and Molybdenum from spent catalysts using deep eutectic solvents (DESs)

Abstract
There has been a substantially increasing demand for Energy Critical Elements (ECEs) in recent years as energy-related technology has advanced rapidly. Spent catalysts are known as potential sources of ECCs such as Ni, Co, Mo, W, V, and rare earth elements. This study developed an environmenta...