Microwave applications in mining and process metallurgy have been the subject of many
research studies over the past two decades. This paper reviews microwave-assisted …

Non-sulfide zinc deposits were the prime source for zinc metal production for hundreds of
years. However, during the early 20th century, their significance diminished due to the …

Microwave heating has been extensively explored in various fields of materials processing.
This technology exhibits unique characteristics including volumetric and selective heating …

A simplified equation for determining the transverse electromagnetic mode (TEM) power
penetration depth of microwaves in materials having both magnetic and dielectric response …

Significant quantities of sludge and slag are generated as waste materials or byproducts
every day from steel industries. The blast furnace sludge (BFS) is considered to be highly …

Pressure acid leaching of zinc refinery residues containing 0.266 wt.% Ga and 0.363 wt.%
Ge was performed. The effects of the experimental parameters on the leaching of gallium …

Coal fly ash (CFA) is one of the largest forms of global industrial waste, and continuous
accumulation of CFA puts great pressure and poses potential risks to the natural …

High pressure oxidative acid leaching (HPOXAL) was employed to extract valuable metals
from nickel converter slag. Parameters such as sulfuric acid concentration, temperature …

Recent developments of acid leaching and solvent extraction of zinc silicate ores have
produced renewed commercial interest. However, the leaching kinetics of these …

In this research, gallium and germanium were separated and recovered from zinc refinery
residues by a two-stage leaching. In the first leaching stage with sulfuric acid media, 92% of …