Slag Dump 48 - Nkana (ChambishiMetals ENRC) - Zambian Copperbelt (sitios de interés)
Descripción del sitio
Nkana Slag dump 48
Chambishi Metals Plc
RESOURCE BASE
20Mt at 1.16% Cu & 0.76% Co
Slag is excavated from the Nkana slag dump by front-end loader and occasionally by drilling and blasting. The material is concentrated through crushing and passing over a magnetic drum. The concentrated slag is then transported 35 kilometres by road to Chambishi Metals, where it is mixed with various reagents such as anthracite, coal and malachite. It is then fed into the COSAC (Cobalt from Slag and Copper as a by-product) furnace, 40 MW DC single solid graphite electrode electric furnace. The resultant cobalt-copper alloy is tapped and routed through the atomiser and pressure leach, where it is made suitable for electrowinning