
sep 07, 2017 gold/silver base metal concentrate deportment. smelters typically pay 95 (au) and 90 (ag) in copper and lead concentrates, but will only pay 60-70 (maximum, depending on degree of pb/zn smelter integration) for gold and silver in zinc concentrates. cost drivers are also important in flowsheet selection, and are summarised in table 3.,miningore milling mt baker mining and metals,the hammer mill or ball mill takes the 3/4 discharge from the jaw crusher and pulverizes it to liberate the values in the ore (usually gold), and one of them is a component of our turn-key ore processor. the size of the powder from a hammer mill is controlled by the size of the openings in the screen, and the discharge is processed on the