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The document evaluates a diagnostic leaching technique to quantify the distribution of gold between native gold and gold-silver tellurides in ores. It details a two-stage leaching process using dilute cyanide at pH 9.5 followed by strong cyanide at pH 12.5. The results show that most native gold dissolves in stage 1, while the gold-silver telluride calaverite is highly refractory and only dissolves a small amount even in stage 2. Therefore, the diagnostic leaching technique did not provide an accurate estim

Author

Edgar Pérez

Language

EN