Abstract
A novel method demonstrates that the oxidation and dissolution of gold and silver in alkaline cyanide solution can be conducted simultaneously in the same autoclave in less than 90 minutes with a recovery that exceeds 96%. Because mild operating conditions of 80°C and 0.6 MPa oxygen pressure are used in this process, low cost materials of construction can be utilized for the autoclave.
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Parga, J.R., Valenzuela, J.L. & Francisco, C.T. Pressure cyanide leaching for precious metals recovery. JOM 59, 43–47 (2007). https://doi.org/10.1007/s11837-007-0130-4
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DOI: https://doi.org/10.1007/s11837-007-0130-4