Copper slag, generated mainly during copper smelting, and classified as a potentially
harmful waste, is an important secondary resource containing not only valuable metals, such …

China's copper resources are characterized by low grade and complex composition. A large
amount of copper smelting slag (CSS) containing valuable elements such as copper and …

Hydrometallurgical approaches have been successfully employed for metal separation and
recovery from various types of waste materials. Therefore, hydrometallurgy is a promising …

In a race to save the earth of its rapidly depleting natural resources, the use of Secondary
Raw Materials (SMRs) as alternative replacements in several processes is currently …

Being constituents of the effluents of many industries, heavy metals cause severe
environmental pollution given the fact that they are recalcitrant and persistent in the …

Solid metalliferous wastes (sludges, dusts, residues, slags, red mud and tailing wastes)
originating from ferrous and non-ferrous metallurgical industries are a serious environmental …

More than one million tons of secondary aluminum dross as a hazardous waste are
produced by aluminum manufacturers per year throughout the world, which imposes high …

The study of copper (Cu) recovery is crucial for the entire recovery process of waste printed
circuit boards (WPCBs), and Cu can be leached efficiently via a sulfuric acid–hydrogen …

Cu-slags are a by-product of pyrometallurgical processing and contain elevated
concentrations of metallic elements that may be released during weathering. Hence, they …

The numerous ecological problems caused by the accumulation of secondary aluminum
dross (SAD) as a hazardous waste generated in aluminum castings have necessitated a …