Gold-polymetallic ore characteristics and treatment methods
Such ores containing gold in addition, also contains copper, lead, zinc, tungsten, antimony and other metal minerals, but still has value as a gold ore mined separately. Features such as ores: sulfide occupy a considerable amount (10-20%); natural pyrite and gold in close symbiosis, and most of the copper and lead minerals closely associated; gold wide particle size range, and in the ore uneven distribution. In general, the ore is treated with a complicated process, and the process is adjusted as the ore properties change. The process of mixed flotation-separation flotation can generally be used. When there is coarse gold, the mercury can be mixed (or re-selected) before flotation. Production indicator 　 Gold lead concentrate Gold and copper concentrate Sulfur concentrate Mercury paste Raw ore% Tailings% grade% Recovery rate% grade% Recovery rate % grade% Recovery rate % grade% Recovery rate % gold 9 0～100 (g / ton) 1 4~18 20 0 to 500 (g / ton) 1 2 to 13 10 0-20 (g / ton) 1 1 to 15 1 0 ~ 15 (g / ton) 4 0～45 10 0-20 (g / ton) 1 to 0.8 (g / ton) copper 1 to 2 　 1 2 to 15 3 0~40 2 to 3 　 　 　 0.1 0.0 8～0.02 lead 2 0～23 6 0～70 8~10 　 5~9 　 　 　 0.5 0.02 Wheel Excavator,Wheel Mini Excavator,1Ton Mini Wheeled Excavator,Wheeled Excavator Shandong Hexu Engineering Machinery Co.,Ltd , https://www.sdhxmachinery.com
Gold ores belonging to a plurality of gold-bearing sulfide ore type quartz veins. The ore contains 0.1% copper, 0.4-0.5% lead, 4~7% iron, 10-20g/ton gold, 30-50g/ton silver . The total content of sulfide minerals is as high as 10 to 15%. Most of the natural gold is embedded in quartz, and some gold is symbiotic with sulfide. The mine uses a combined mercury-flotation process (see figure below). The coarse-grain unit gold is recovered in the amalgamation operation, and the gold co-existing with the sulfide is selected by flotation to concentrates of copper, lead and iron sulfide. The factory's production indicators are shown in the table below. 