Zinc - WikipediaZinc is a chemical element with symbol Zn and atomic number 30. It is the first element in group ... Zinc ores were used to make the zinc–copper alloy brass thousands of years prior to the discovery of zinc as ... Alloys of 85–88% zinc, 4–10% copper, and 2–8% aluminium find limited use in certain types of machine bearings.machine used in zinc ore,Lead and Zinc - Department of EnergyLead and zinc ores are usually found together with gold and silver. .. method is chiefly used with galena because the mineral is finely dispersed through the rock . moisture is added, the mixture is pelletized and fed to the sinter machine.
machine used in zinc ore