Twelve Months' Milling at Noranda

THE Noranda concentrator was placed in operation in October, 1928, and the object of this paper is to outline operations during the twelve months which have elapsed since that time . The ores milled are massive sulphides carrying copper and gold, and, in certain cases, zinc.
Keywords: chalcopyrite, copper, pyrrhotite, Soda Ash Per Ton Mill, zinc, copper, flotation, Mill, Mills, Ore, Ores
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