Tin mining Wikipedia
Tin mining began early in the Bronze Age, as bronze is a copper tin alloy. Tin is a relatively rare element in the Earth's crust, with approximately 2 ppm (parts per million), compared to iron with 50,000 ppm. Contents. [hide]. 1 History. 1.1 Modern times. 1.1.1 Electronics. 2 Production and smelting; 3 Future supply of tin.
Innovations: Introduction to Copper: Mining & Extraction
Flotation by the injection of air and violent agitation is carried out with the pulverized ore held in suspension in water, to which surface active agents have been added. The process yields concentrates containing roughly 30% copper, which are sequentially fed to a smelter, a furnace in which most of the some iron and sulfur.Get Price