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dissolve gold from iron ore

Apr 01 2011 It is a good idea to treat the concentrate with either vinegar or muriatic acid because the gold in the concentrate is often coated with a thin film of iron or manganese oxide giving it the appearance of ordinary black sand The concentrat e should be allowed to pickle in the acid bath for a least a half hour...We serves many industries, including construction crushing: jaw crusher, sand making machine; industrial milling: ultrafine grinding mill, raymond mill; ore beneficiation: ball mill, magnetic separator; green building materials: rotary dryer, dust collector; tails treatment: briquette machine.

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