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Applicable Equipment

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Flexible plant components for versatile, cost-effective flowsheets.

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Also applicable for the Electrowinning Cells.

Applicable Minerals

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Free gold is unbound to other materials and is easy to liberate.

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Gold associated with sulphides requires a modified flowsheet.

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Free silver and silver complexes behave unpredictably and contain impurities.

Electrowinning

Electrowinning is the recovery of metals, such as gold and silver, from solution by passing a current through the solution. Electrons from the current chemically reduce the gold and/or silver ions, to form a solid metal compound on the cathode.

High throughput, state-of-the-art electrowinning cells provide a low-cost option for silver producers, in particular, and leads to increased profits.

Electrowinning offers a significantly higher efficiency of silver recovery with low operating costs, compared to zinc precipitation methods. In addition, electrowinning produces a very clean silver product that is straightforward to smelt.

Gekko’s high-volume electrowinning cell design captures more metal.

Benefits

Large volumes of mineral-bearing solutions can be processed by electrowinning for greater yields.

Gekko’s electrowinning cell is specifically designed for the reliable extraction of high concentrations of silver from solution.

Gekko's continuous electrowinning system allows minerals to be removed from the cell during operation.

The low-maintenance device design makes mineral collection and electrode cleaning easy.

High volumes and high concentrations of mineral, especially silver, can be processed in a tailored, flexible manner.

High current density and unique ‘drop site’ design, for collecting silver solids, ensures ongoing and productive electrowinning efficiencies.

How It Works

The higher concentrations of silver in solutions, brought about from upstream process improvements, have made it economically viable to use electrowinning to recover silver.

To process high-grade silver-bearing pregnant solutions to pure silver concentrates, electrowinning is best performed using Gekko’s innovative electrowinning cell. The efficiency of electrowinning is determined by several factors including the concentration and composition of the pregnant solution.

Specifically engineered to handle the large volumes of high-value solutions, the electrowinning cell is well suited to enhancing silver recovery operations.

The Gekko Difference

Gekko’s high-volume electrowinning cell is designed to capture more metal. It achieves high-efficiency gold and silver extraction from leach and other pregnant solutions. This high-quality device permits greater process uptime, higher mineral yields, less washing and efficient cathode cleaning.

Contact Gekko’s technical services team today for more information about electrowinning options.

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