Kinetic Сharacteristics of Silver Dissolution in Nitric Acid Solutions in the Presence of Ammonium Nitrate
A. B. LEBED', D. YU. SKOPINВ В andВ В G. I. MALTSEV
Uralelectromed' JSC, Ul. Lenina 1, Verkhnyaya Pyshma 624091 (Russia)
mgi@elem.ru
Keywords: silver, nitric acid, ammonium nitrate, kinetic characteristics
Pages: 391–396
Abstract
Kinetic characteristics and mechanism of silver dissolution in the course of leaching the gold-silver alloy by nitric acid solutions in the presence of ammonium nitrate under a pressure of gas phase reaction products were investigated by means of the method of rotating disk. Parameters were revealed for the process occurring in the external diffusion, kinetic and transition zones. Factors have been found those determine the dissolution rate of the metallic silver.
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