Study on the Optimal Condition of a Copper-Bearing Gold Ore Cyanide Leaching Using Orthogonal Design

Kai Wang; Yi Qi Cui; Xiong Tong; Peng Dong; Qi Meng

doi:10.4028/www.scientific.net/AMR.734-737.1006

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 734-737Study on the Optimal Condition of a Copper-Bearing...

Study on the Optimal Condition of a Copper-Bearing Gold Ore Cyanide Leaching Using Orthogonal Design

Abstract:

The copper-bearing ore assays 1.7g/t Au, 50.43% Fe and 0.41% Cu. Recovered gold by cyanide leaching, in this study, the orthogonal test design was used to examine effects of NaCN dosage, leaching time, agitation intensity, particle size on gold leaching rate and determine the optimal operation combination for the purpose of increasing gold recovery. Gold extractions of 92.34% were achieved using a particle size of 90%-200 mesh, NaCN dosage of 1.8kg/t, leaching time of 36h and agitation rate of 400r/min.