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Small gold amalgamating refining labrotary rod mill

Direct smelting of gold concentrates, a safer . - Semantic Scholar. Mercury is used in small-scale mining to amalgamate gold particles, . both under laboratory conditions and in the field, under the Ghana Mercury Abatement Project sponsored by the . miners refer to as 'refined gold'. . main types of gold ores, namely refractory sulphidic gold ores, free milling and alluvial material

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