CUPROCHLOR® RECOVERY OPTIMIZATION FOR SECONDARY SULFIDES – MINERA ZALDÍVAR

The Project consisted of modifying the infrastructure in the plant to introduce a leaching process with high chlorine content, using the Cuprochlor® technology, which Antofagasta Minerals has been using for some years, allowing to improve the recovery of sulphide minerals that exist in the deposit and that are part of its base case. These sulphide, by the conventional leaching method in an acid medium, reach an average recovery between the ranges of 50% to 55%; With this technology, it is projected to reach values in ranges above 70%.