Mineral Processing & Metallurgy
This covers a diverse range of projects with concentrators operating at 240,000 tpd or more, involving a full range of base and precious metals and minerals. Gold leaching. Our mineral processing group has significant experience with various gold-leaching techniques and carbon treatments.Here is an Ancient Gold Ore Milling Process used in China in the 1800s. We might use it again after WW3. At the time, 1890, the Author said "There is, of course, nothing for us to learn from this imperfect and rudimentary gold-extraction process described here, which is doubtless destined to disappear ere long, before the progress of scientific mining, now making itself slowly felt .