Influence of lead nitrate on cyanide leaching of gold and silver from turkish gold ores
 
 
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Kozagold Corp. Kaymaz Gold Mine
 
 
Publication date: 2014-01-06
 
 
Corresponding author
Baris Sayiner   

Kozagold Corp. Kaymaz Gold Mine, P.O. Box 26640, Eskisehir, Turkey
 
 
Physicochem. Probl. Miner. Process. 2014;50(2):507-514
 
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ABSTRACT
Effect of lead nitrate addition on cyanidation of Havran, Ovacık, Mastra LCu (low copper) and Mastra HCu (high copper) gold ores was investigated by laboratory tests at the Ovacik Gold Mine Metallurgy Laboratory. Leach tests were performed at optimum NaCN additions and pH values while different lead nitrate additions were applied. Ovacik cyanidation plant leaching time, 24 hours for the constant 100 Mg/h ore feed rate was applied as optimal for all lead nitrate tests. Results showed the increase in gold and silver recoveries between 0.4-1.2% for gold and 3.9-11.6% for silver at the end of 24 hours leaching by the addition of lead nitrate as 0.1-0.5 kg/Mg. NaCN consumption decreased or did not change except for the Ovacik ore. In the case of the Ovacik ore it slightly increased.
eISSN:2084-4735
ISSN:1643-1049
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