The ongoing depletion of gold and silver-containing ore deposits demands a shift towards
the processing of more complex sources. Leaching of gold or silver from these sources …

The gold processing industry is a large consumer of lime reagents in various forms. Its role
in gold processing is mainly as a pH control agent for optimal cyanidation leaching of gold …

The present study aims to conduct a comprehensive comparison of five hydrometallurgical
processes to recover copper from PCBs by adopting the central composite design …

Mercury amalgamation is the method of choice to recover gold in artisanal and small-scale
gold mining (ASGM). However, despite the low cost and simplicity of this method, the use of …

Purpose Currently, almost all cyanide-free gold leaching processes are still in the
development stage. Proactively investigating their environmental impacts prior to …

With the constant accumulation of electronic waste, extracting precious metals contained
therein is becoming a major challenge for sustainable development. Bacillus megaterium is …

Trace gold (I) recovery from thiosulfate solutions limits the application of thiosulfate leaching
instead cyanide leaching method in industries. Here, facet engineering in cadmium sulfide …

As the main copper-bearing sulfide minerals in cyanide tailings, how to improve the flotation
recovery of chalcopyrite is of great significance to the comprehensive management of bulk …

Polymetallic sulfide ores are often not amenable to cyanide leaching due to the presence of
several elements and minerals capable of interfering with this process. Thus, various …

In this study, the synergistic extraction system of trioctylmethyl ammonium chloride (N263)-
tributyl phosphate (TBP)-n-octanol-sulfonated kerosene was used to enrich and recover …