In this review, resources of nickel and status of different processes/technologies in vogue or
being developed for extraction of nickel and associated metals from both primary and …

With the continuous development of industrialization and the depletion of ore resources, the
recovery of valuable metals from spent catalysts has attracted the attention of researchers …

Research on biohydrometallurgy of secondary metal resources is primarily focused on the
leaching of valuable metals. For secondary metal resources biological processing can be an …

The by-products of zinc refineries are used as the primary mineral resources for the
commercial production of indium. The discarded LCDs containing adequate amount of …

Microbial leaching via biocyanidation process enables efficient extraction of precious metals
from low-grade ores and increases attention in mineral industries for applying green and …

Abstract Acidothiobacillus ferrooxidans (A. ferrooxidans), an iron-oxidizing bacteria oxidizes
Fe (II) to Fe (III), which is an excellent leaching agent to leach out rare earth elements …

Abstract The catalyst Mo–Ni/Al 2 O 3 is commonly used in the hydrodesulfurization of
petroleum fractions. The catalyst is discarded when its catalytic activity does not meet the …

This study proposes a technical route toward the comprehensive recovery of valuable
metals from spent Ni–Mo/γ–Al 2 O 3 hydrofining catalysts, which were employed to remove …

Molybdenum (Mo) and vanadium (V) were effectively extracted from the spent diesel
exhaust catalyst (V 2 O 5–MoO 3/TiO 2) by using an ammonia leaching method. Meanwhile …

In this work, nickel, molybdenum, and vanadium were selectively extracted from the spent
hydroprocessing catalysts (Ni–Mo–V/Al 2 O 3) by using an integrated ammoniacal leaching …