Condor Gold has received the final results of metallurgical tests for a feasibility study (FS) being conducted on the La India Open Pit from Bureau Veritas Laboratories in Richmond, British Columbia. The most recent iteration of testing was focused on variability testing and confirmation of recoveries at the lower grades. The 2022 FS Study will bring the level of confidence for the project to the industry-standard of engineering design, sufficient to support +/-15% capital and operating cost estimates.
- The confirmatory testwork demonstrated that gold recovery is independent of grade and a fixed gold recovery of 91% assuming a 75 micron grind size will be used in the project economics of the forthcoming FS.
- Gold extraction from the 11 variability composites averaged 92.6% at the 75 micron grind size, which is reduced by 2% to allow for gold being locked up in the processing plant.
- Gold extraction from the four low grade composites averaged 93.8% at the 75 micron target grind, indicating a gold recovery of 91.8% after a 2% reduction to allow for gold being locked up in the processing plant.
- At a finer grind size of 53 microns an average gold extraction of 94.7% was achieved, indicating a potential upside gold recovery of about 93%.
- The selection of the composites by both grade and approximate year of production provides confirmation that the mill recovery will not be materially affected over the life of the La India Mine.
Mark Child, Chairman and Chief Executive of Condor Gold, commented: “I am delighted that a net metallurgical recovery of 91% will be used in the technical economic models for the forthcoming FS on the La India Open pit. Very comprehensive metallurgical testwork has been conducted to the highest standards as a FS level is the technical document to which project finance is provided to the project. 91% metallurgical recovery over the life of mine is a terrific result and represents a significant de-risking of one of the most important variables in the development of a new mine at La India Project and provides significant comfort to investors. The application of both variability testing and confirmation of low-grade responses is consistent with best practices in the mining industry, while confirming the ability of the processing plant to achieve excellent recoveries down into the lower grade portions of the deposit, in a standard Carbon-in-Pulp cyanidation plant. The higher gold recovery at 53 micron-grinds suggests an opportunity to recover an additional 2% of the contained gold from the La India material.”
Read the article online at: https://www.globalminingreview.com/exploration-development/08082022/condor-gold-announces-la-india-open-pit-metallurgical-test-results/