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GOLD REFINING
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| Shows the basic refining process
in an easy to understand format. Covers the chemicals,
acids and |
| equipment needed to recover
gold from workshop waste with actual step-by-step demonstrations
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| of the refining process for
three precious metal wastes; sweeps, karat gold and stripping
sediment |
| Running time: 58 minutes. |
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Part
No. 63.1402 |
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