Kenora says objectives of this study included the analysis of mineralogical characteristics and the preliminary assessment of gold-silver recovery through cyanide amenability of the Regnault ore. The study was carried out at the engineering department, mineral resources division of SMMCL.
The initial test work has demonstrated promising gold-silver recoveries of the Regnault-style ore, the company says.
Additional work has been planned to further maximize recovery, including the effects of gravity separation of coarse gold and electrum prior to cyanide leaching, the potential effect of flotation prior to cyanide leaching, and the use of an activator (lead nitrate or citric acid) to increase extraction of precious metals from gold-silver-tellurium minerals during cyanide leaching.
