Choose a highly cost-effective and efficient zinc concentrate direct leaching solution. Outotec's zinc direct leaching process enables efficient zinc and by-product recovery from a wide range of primary zinc sulfides. Direct leaching requires no investment in a roaster or acid plant, so it is especially suitable for smaller plants and plant expansions. Recovers zinc as SHG ingots and by-products such as Cu, Cd, Co, Ni, In, Ga, and Ge Adapts to different feed qualities and by-product recovery demands Scales to a wide range of production capacities Enables efficient oxidation at low cost with specially designed reactors for atmospheric leaching Boasts a low CAPEX as no roaster or acid plant is needed