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Mintek has developed a process called iGoli Mercury-free Gold Extraction Process that can be used to extract gold from 0.1 % gold concentrate to produce 99.90 percent gold product. The process uses a mixture of pool acid (dilute hydrochloric acid), bleach (sodium hypochlorite) and sodium

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The iGoli mercury-free gold extraction process has made a significant impact in Tanzania and is widening its footprint into Africa, reports mineral-focused company Mintek. Mintek has been developing a mercury-free extraction process for some time. In the past ...

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Technical Note Gold extraction by chlorination using a pyrometallurgical process M.W. Ojedaa,*, E. Perinob, M. del C. Ruiza a Instituto de Investigaciones en Tecnología Química (INTEQUI), Universidad Nacional de San Luis-CONICET, C.C. 290, 5700 San Luis ...

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Removing the gold-bearing rock from the ground is just the first step. To isolate pure gold, mining companies use a complex extraction process. The first step in this process is breaking down large chunks of rock into smaller pieces. At a mill, large machines known ...

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how to igoli gold extraction - Grinding Mill China At the Gold ore Processing Plant, gols should be extracted from the ore. The processing plant alternates between treating ore from ...

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