Metals Mining and Milling Process Profiles With Environmental .
These include mills which Crush, grind, wash, dry, sinter, or leach ore, . SIC 1011 - Iron Ores SIC 1021 - Copper Ores SIC 1031 - Lead and Zinc Ores SIC 1041 . lists the ore deposit names and the principal minerals being mined in the U.S. for .. If it is a dry system, dust emissions to the atmosphere from screening can be.