Bayan Airag Exploration in Mongolia adopted Draslovka’s glycine gold leaching process, GlyCat, for use in heap leaching at the Golden Hills and Limestone Ridge operations. The development follows testing on a 1,000-mt trial heap leach that demonstrated a 79% gold recovery, a 65% reduction in cyanide usage, and a projected 70% reduction in total reagent costs.
Bayan Airag said it selected the solution to cut cyanide costs and usage. “It also gives us an advantage for when we encounter high levels of copper in our gold-silver ore,” said CEO Peter Thompson. “We are proud that the Bayan Airag mine is the first mine in Mongolia to use GlyCat and the first instance of commercial implementation of GlyCat in a heap leach anywhere in the world.”