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Golden Electrowinning Closed Loop Technology

     

Golden Refining Methods:

Gold refining has a long history, with electrolysis and the Wang water method being two classic techniques. The main advantage of the electrolysis method is that it can produce gold of 99.95% to 99.99% purity under relatively low investment. However, its main disadvantage is that a large amount of gold must be stored either in the form of ions in the electrolyte or on the electrodes, leading to significant capital investment for the electrolytic cells themselves. Additionally, the production rate of this method is slower than that of the Wang water method.

In the Wang water method, gold is dissolved in Wang water, and a chemical agent is used to partially reduce the gold present in the solution, resulting in 99.99% pure gold. Requirements:

The total soluble gold quantity in the solution must be known.

The acidity of reducing conditions should be appropriately adjusted.

Partial reduction is typically carried out at 80% to 90% of the theoretical value.

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