Sierra Metals To Invest Us28 Million For An Iron Ore
Apr 21, the plant is expected to produce approximately 500,000 tonnes per year of 62% iron ore fines concentrate at the company’s bolivar mine located in.Apr 28, 1. campaigning: for metallurgical reasons if there are some ore types that can cause process difficulties if mixed with other ores. the problematic ore might be stockpiled until sufficient inventory allows one to process that ore (i.e. campaign) through the mill. such stockpiles will only grow as large as the operator allows them to.