In recent two decades, ultrasound has been broadly applied to the hydrometallurgical
leaching process to recover valuable metals within raw materials, aiming to solve the …

In the context of the circular economy, there is a need for advanced methods to recover
metals from industrial waste, yet classical hydrometallurgical techniques are limited. Here …

Although many technologies have been introduced to recover valuable metals from copper
slags, their economic and environmental compatibilities were not satisfactory. The …

This study investigates the ultrasound-assisted leaching of Li and Co from spent batteries
using a deep eutectic solvent (DES) composed of polyethylene glycol and thiourea. The …

In this article, one of the main scientific directions was the search for ways of recycling coal
mining waste to produce expanded clay granules. There are a number of scientific studies …

Ultrasound-assisted chalcopyrite leaching has been reported previously, showing a
noticeable improvement in leaching kinetics. However, the effect of ultrasound on the …

Objective Germanium, an important component of electronics, is considered by many global
economies as a critical raw material. Therefore, investigating its potential new sources is …

Copper content in copper smelter slag exceeds that in copper ores, which has attracted
increasing interest to recover copper from this by-product of pyrometallurgical copper …

Mill scale (MS) is considered to be a significant metallurgical waste, but there is no
economical method yet to utilize its metal content. In this study, which covers various …

This study investigates the extraction and leaching kinetics of metals from slag, a by-product
in pyrometallurgical copper production, under atmospheric leaching conditions in the …