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  • Effectiveness acidic pre cleaning for copper gold ore Scielo.br

    Keywords: copper; mineral; gold; acid cleaning; cyanidation; copper gold ore . In this process, other metals, besides gold and silver, can be dissolved in certain.

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  • How to Use Bleach on Gold Ore to Remove Gold . Sciencing

    Apr 24, 2017 . When combined with hydrochloric acid, the mixture produces chlorine that dissolves gold from gold ore. This was the first commercial method.

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  • How to Refine a Gold Smelt . Sciencing

    Apr 24, 2017 . Smelt gold is more pure than the original ore product, but can still contain impurities such as sliver, copper and platinum. A second refinement can be done by dissolving the smelt gold in a combination of acids; a method.

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  • Eliminating Copper from Gold Ore 911 Metallurgist

    Mar 19, 2017 . When reviewing Methods of Eliminating Copper from Gold Ores we see . copper with sulphuric or sulphurous acids may be applicable to ores . sulphide copper minerals, many of which dissolve readily in cyanide solutions.

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