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The majority of small and medium Artisinal Miners world wide use inefficient methods to extract gold from concetrat The methods include the use of mercuryGold processing with Muratic acid and chlorine bleach The Igoli Mercury Free Gold Extraction Process Acid Bleach Leaching 20 Apr The process uses a mixture of pool acid dilute hydrochloric acid bleach sodium hypochlorite and sodium metabisulphate to leach and

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