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Browsing Electronic Theses and Dissertations by Subject "Zaruma"
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Problems in cyaniding a complex base ore with log of tests made, flow sheet, and equipment decided upon as the best adapted to treat the ore (University of Nevada, Reno, 1923)The South American Development Company has at their mines in Zaruma, Ecuador, a large body of low grade ore known as the Contabria Vein. This ore has continually been a source of trouble when treating it in the mill with ...