Abstract
The dissolution of gold in iodine-iodide solutions was studied using the rotating disc technique. The effect of changes on disc rotational speed, temperature, iodine and iodide concentrations, solution pH and various additives were investigated. Kinetic data and thermodynamic considerations were used to explain the fundamental aspects of the process. Gold can be leached at a greater rate by iodine-iodide solution than is possible by thiourea and by the conventional cyanidation techniques.
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