The gold content in the tailings of gold deposits in China is generally 0.2-0.6g/t. Most of them are accompanied by copper, lead, zinc, iron, sulfur and other elements, mainly P (0.1% – 0.18%); Zn(0. 1%~0.15%); Pb(0. 2%~0.3%); Cu (0.02% – 0.04%) etc. The main minerals of the tailings of the gold deposit are cafe2 (Si02), […]