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Show ZINC SMELTING. Colorado Finished Encouraging Year in Reducing This Metal. According to the reports furnished by the companies to the local newspapers the United States Zinc company (plant at Pueblo) purchased, In lIQa. ore to tho amount of 2S.I91 ton.s, containing 93i) tons of zinc, an average of m.5 per cent. The production of speltur for the year was 6344 tons. Tho United States Smelting company I (plant at Cuuon City) smelted 33,000 tone of ore, containing 7500 tons of zinc (22.7 per cent), 2900 tons of lead (S.S per cent), COO tons of copper (1.8 per cent), SOO.OOO ounces of silver (9 ounces per ton), and 2000 ounces of gold (0 CGG ounces per ton). Excepting SCO tons of ore from Arizona, all was obtained from Colorado. The products of this plant aro zlnc-lcad pigment pig-ment and copper matte. The averages computed do not show the grade of zinc ore smelted. Inaamuch as some copper ore, free from zinc, Is smelted along with ' the zinc ore. Engineering and Mining Journal. |