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Write a concise description of the operation in a Gold refinery plant as shown in the following schematic flow diagram. The reaction during the leaching

Write a concise description of the operation in a Gold refinery plant as

shown in the following schematic flow diagram. The reaction during

the leaching process is given

4 A u + 8

NaCN

+ 2 H 2 O + O 2 4 N a [A u (C N) 2] + 4

NaOH

Refining of Gold

-

Bearing Ores

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