The separation of arsenic from copper in a Northparkes
2007 10 19 In order for the high arsenic regions of the Northparkes copper–gold orebody to be beneficiated economically, tennantite Cu,Fe 12 As 4 S 13 present in the ore needs to be rejected to enable copper concentrates to meet the typical smelter penalty level of 2000 ppm As. Using a composite sample of high arsenic drill cores from Northparkes it was possible to