Electrowinning is known as an electrolytic process because it involves electrodes submerged into an electrolyte.An electrolyte is simply a conductive solution formed by dissolving positively and negatively charged ions.
The electrochemical series lists a particular metals ability to accept compared to standard hydrogen electrode which is defined as 0.0 V. Metals that are more willing to accept electrons have a positive reduction potential are more easily plated and considered more
In conventional electrowinning, alternating planar anodes and cathodes are placed into a static or slow moving electrolyte bath. Let’s assume an electrolyte of copper
With a voltage applied, copper cations migrate towards the cathode where they are plated as pure copper metal. As metal builds-up on the
For over 150 years, there was little change to the process of electrowinning.
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