This method not only improved gold recovery rates but also ... widespread adoption of thiosulfate and other non-cyanide lixiviants. Issues such as leaching efficiency, cost-effectiveness, and ...

Other potential alternatives to cyanide include the Haber Gold Process, which technology company Haber says is both non-toxic ...

Cyanidation: A method for extracting gold from ore using a cyanide solution. Lixiviant: A solvent used to extract metals from ores through leaching. Leaching: The process of extracting a substance ...

Montana officials said the initiative will be defended "vigorously." Initiative 137 bans new mines from using cyanide to leach gold or silver out of ore obtained from open-pit mines. A coalition of ...

The UN support follows an Argentine's court order of a five-day suspension of the gold leaching process at Veladero mine to determine whether there was any environmental damage from the cyanide leak.