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Show New Industry For Utah I ' 111 ' ' . , i, . i New Zinc plant under construction at Tooele, Utah. I Very little. If any, of its metallic I resources are lost to the state of j Utah. Faced with the necessity of treat- lng lower and lower grade ores, smelters of Utah have advanced metallurgy to a point that only a negligible part of the metallic content con-tent of the ores now flow to the tailings pond. Prior to the early twenties, much of the zinc in ores of Utah was lost In the smelting processes and flowed flow-ed through the plant and into the tailings pond. Not only did miners lose the zinc content of their ores, but they were penalized for It. Naturally, this meant much loss to the operators and to the state. Early in the twenties, the smelters smelt-ers met this situation with the development of selective flotation. At that time the mini.ig industry was threatened with virtual extinction, extinc-tion, as much of the higher grade ore had been mined and rnly the low grade lead-zinc sulphide ores found on deeper levels of the mine was available. Selective flotation gave the industry a new lease on life, as it meant that the operator was paid for both lead and zinc. : Now comes another development of significance to the state. The . International Smelting & Refining company has worked out a process to treat the old slag dump in which the lost zinc of former years was stored, thereby creating industry, indus-try, payrolls and taxes upon a resource re-source that was formerly worthless. worth-less. Coming at this time the new processes pro-cesses doubly important, as it will help to furnish a much needed metal for national defense. The International, which already pours annually into the channels of industry throughout Utah approximately approxi-mately $20,000,000 in the form of payrolls, supply purchases, con- ' , struction, railroad freight, taxes, etc., will add substantially to its Utah operations with this plant. The plant for the recovery of the zinc will cost approximately $300,-000.00 $300,-000.00 and is expected to be ready for operation in the fall of 1941. After its completion, the plant will furnish steady employment for about 35 men. 9 |