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Show EXPANSION OF LEACHING SYSTEM AT KCC READIED Expansion of the leaching system sys-tem at the east side dumps at Ken-necott Ken-necott Copper Corporation's Bingham Bing-ham Canyon mine will be substantially substan-tially completed within the next two weeks. The work on the leaching leach-ing system .was one of the major projects in Kennecott's 1 962 capital cap-ital investment program of $ 1 3 million for improving copper producing pro-ducing facilities in Utah. Weyher Construction Co. of Salt Lake City has done the construction construc-tion work, which included the building of a 20-million gallon water wa-ter reservoir east of Copperton, a new pipeline distribution system to the waste dumps, new pumps, and a 100,000-gallon storage tank. The project cost exceeded $400,000. Completion of the large earthen dam reservoir will result in conservation con-servation of water in the leaching system. Prior to this construction, occasions occurred during the spring run-off period when excess water escaped because of the lack of storage facilities. The four pumps, which have been installed in a steel prefabricated prefabri-cated building, will serve the entire leaching system at the mine, in addition to the new east side area. The pumping system includes one 4,000-gallon and three 2,000-gallon per minute units. By using four pump systems, flexibility in moving water to various dumps to be leached leach-ed will be achieved. The pumps will be supplied from the 100,000-gallon 100,000-gallon sump tank located near the new pump station. Subcontractors involved with Weyher on the project were Smith Brothers Construction Co., Wasatch Electric Co. and Peters Plumbing Co. Weher has a total work force of 50 on the job. The leaching operation at the Bingham Canyon mine is increasing in significance because of the greater great-er amounts of waste rock now being be-ing removed to mine low-grade ore. At the present time, approximately 235,000 tons of waste rock, con-taining con-taining less than four-tenths of one V per cent copper the cut-off point between ore and waste are being hauled daily to the dumps around the mine. In leaching this material, water pumped to various levels of the dumps filters through the rock, collecting minute quantities of copper. cop-per. The copper is recovered from J the water at the precipitation plant near Copperton. ... 1 x.i |
