Electronic e-waste (e-waste) is a growing problem worldwide. In 2019, total global
production reached 53.6 million tons, and is estimated to increase to 74.7 million tons by …

Waste electric and electronic equipment, or electronic waste, has been taken into
consideration not only by the government but also by the public due to their hazardous …

Numerous non-cyanide leaching lixiviants have been developed, among which thiosulfate is
considered the most promising alternative to cyanide due to its non-toxicity, low price, high …

The ammoniacal thiosulfate leaching process for gold and silver extraction has been
reviewed in terms of leaching mechanism, thermodynamics, thiosulfate stability, and gold …

Australia is now an important gold producer in the world. The nature of Australian gold
production is briefly reviewed and the hydrometallurgy of gold extraction is considered. The …

Thiosulphate leaching of precious metals has been developed as an alternative and non-
toxic technique to the conventional cyanidation. This process has advantages over cyanide …

A review is presented summarising the leaching of gold with ammoniacal thiosulfate
solutions, and evaluating the current use and development of ion exchange resins for the …

Thermodynamics and speciation of the Au (0/I/III) system are reviewed on the basis of
published data on disproportionation of Au (I) and solubility of gold metal and Au (I/III) salts …

This literature review provides an update of ammoniacal thiosulfate as a potential lixiviant of
gold, the history of thiosulfate leaching and recent progress on thiosulfate leaching of gold …

Since the initial report of thiourea as a complexing reagent for gold leaching, considerable
research has been directed toward the use of thiourea as an alternative to cyanide for gold …