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gold electrolysis refining

     

Gold Electrolysis Refining:

In China, the technology for refining gold using electrolysis has been practiced for some time. Typically, the current density at the cathode is 300 A/m², with the concentration of gold in the electrolyte reaching 300 g/L. Major companies employing this method include Sichuan Changcheng and Inner Mongolia Qianyun, as well as various non-ferrous metal refineries such as Shenyang Refinery/HSBC/Hubei-Yichuan Refinery. The cathode has a relatively long cycle time, leading to significant gold accumulation in the process.

Since around 2000, high-current-density gold electrolytic cells have been introduced into China. These cells feature a cathode current density of 1200 A/m² and an electrolyte gold concentration ranging between 100-150 g/L. This advancement has enhanced production efficiency, reduced gold accumulation in the process, and streamlined operations.

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