Method for recovery of copper from sulfidic ore materials using super-fine grinding and medium temperature pressure leaching

摘要

The present invention relates generally to a process for recovering copper and other metal values from metal-containing materials using controlled, super-fine grinding reducing the particle size to less than 25 micrometer and medium temperature (140 -180 °C) pressure leaching. Processes embodying aspects of the present invention may be beneficial for recovering a variety of metals such as copper, gold, silver, nickel, cobalt, molybdenum, rhenium, zinc, uranium, and platinum group metals, from metal-bearing materials, and find particular utility in connection with the extraction of copper from copper sulfide ores and concentrates.