Lead
Galena, a principal ore of lead, The top three producers of refined lead were China, the United States, and India. Alternatively to the pyrometallurgical processes, very pure lead can be obtained by processing smelted lead electrolytically using the Betts process. Anodes of impure lead and cathodes of pure lead are placed in an electrolyte of lead fluorosilicate PbSiF 6. Once
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