Silver refining is a critical part of any precious metals refinery. Often the higher value metals such as gold and the Platinum Group Metals (PGM’s) are associated with silver, which must be recovered separately as a by-product.
One of the most important and frequently asked questions we get is “How much does an emew plant cost”? The cost obviously depends on the size of the emew plant, so to answer this question we need to know how many electrowinning cells are required, which depends on several factors.
In this blog, I will discuss some of the key factors we take into consideration when sizing an
A question that we hear from Clients every day is "Can I recover (copper - or other metals) from this?" The material in question can be concentrated wastes, dilute effluents,
The electrowinning of copper is an electrolytic process that uses electricity to recover dissolved copper from solution as
Cu2+(aq) + 2e- -->Cu(s) (E0 = +0.34V)
Copper easily dissolves in acids including sulphuric, nitric and hydrochloric. Recovering copper cathode from acidic
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.
Electrowinning is the process of ‘winning’ dissolved metals from solution by passing an electrical current through an electrolyte containing said metal. The fundamentals of the electrowinning process have been discussed in a previous blog. The relative ease of recovery depends on the electrochemical potential of the target metal relative to Standard Hydrogen Electrode (SHE) which is defined by the following reaction: