Heap leaching is a widely used process in the mining industry for extracting valuable metals from ores, particularly copper and gold. This method involves stacking crushed ore in heaps and ...

Moreover, the use of hydrogen peroxide in the leaching process has emerged as a novel technique to minimize ammonia wastewater production, a common issue in traditional tungsten metallurgy.

Hydrofluoric acid leaching consistently achieved niobium dissolution in excess of 95% when testing acid dosages ranging from 90% to 130% of the stoichiometric requirement of hydrofluoric acid for a ...