DISCUSSION. SMELTING PROCESSES.

Keywords: EL PASO, LAS TROJES, UNITED STATES, USA, MEXICO, NORTH AMERICA, LATIN AMERI, 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