Zinc smelting is the process of converting zinc concentrates (ores that contain zinc) into pure . which is obtained by concentrating sphalerite using the froth flotation method. .. Electrolytic zinc smelters contain as many as several hundred cells. . of this process is that it can co produce lead bullion and copper dross.
Plants for the production of lead are generally referred to as lead smelters. Primary lead production begins with sintering. Concentrated lead ore is fed into a sintering machine with iron, silica, limestone fluxes, coke, soda ash, pyrite, zinc, . Dross refers to the lead oxides, copper, antimony and other elements that float to the.
May 3, 2017 . . many tests, doping the commercial cells with impurities, such as arsenic, cobalt, and nickel. . Where iron is in close contact with the zinc, the tendency to form ferrite is .. zinc from zinc dross, possibly dross brought over from Germany. .. flotation concentrate during the latter stages of the roasting period.