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wet method refining gold production process (raw gold)

     

Wet Method Refining Gold Production Process (Crude Gold)

Using raw gold as raw material, the process involves powderization, acid cleaning, and a single reduction to achieve gold with a purity of 99.95% or higher in one step. A second reduction is required for the refined gold powder, which needs to be re-dissolved to reach a purity of 99.5% or higher.

The acid cleaning solution requires to chlorinate silver precipitation, and the resulting filter residue undergoes iron powder substitution.

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