The Anaconda C. E. Weed Concentrator

Palagi, C. G. ; Stillar, S. S. ; Finkelstein, N.
Organization: Society for Mining, Metallurgy & Exploration
Pages: 14
Publication Date: Jan 1, 1976
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The C. E. Weed concentrator treats 51,000 tons per day of 0.5% to 0.7% copper ore received from the Berkeley Pit, the Continental East Pit and the Butte underground mines. Improved operating techniques and conversion from semi-autogenous secondary grinding to ball milling have increased tonnage from an original design of 42,000 tpd. Separate treatment of sands and slimes, with recovery of soluble cop- per from the slimes, has increased total copper recovery. Concentrator tailings are pumped 600 vertical feet and 20,000 horizontal feet for disposal.
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