DISCUSSION. SMELTING PROCESSES.

Keywords: UNITED STATES, USA, MEXICO, NORTH AMERICA, LATIN AMERI, EL PASO, LAS TROJES, SMELTING, PROCESS, SILVER, EXTRACTION, GOLD, FUMES, FURNACES, METALLURGY, SLAG, ORES, FUEL, JACKETS, SMELTERS, COLLECTION, WATER, CALCINATION, COPPER, MINES, MINING, METALS, ZINC, CARBONATES, MATTE, MINERALS, LEAD