Jun 6, 2012 . a common estimation method in China, the technique tends to produce estimates that are higher in .. Metal Contained in Reserves. Au (oz). Ag (Moz). Pb (t). Zn (t). SGX .. differential flotation and, with the possible exception of silver halides in the upper zones of the .. Ying Mines Current Equipment List .
Jan 12, 2018 . Fe hydroxide complexes on the surface [8,9]. However . In industrial practices, the Yiliang Pb Zn deposits in Southwest China are regarded as the richest . Flotation tests were conducted in a 40 mL flotation cell with 4.0 g of.