electrowinning also called electroextraction is the electrodeposition of metals from their ores that have been put in solution via a process commonly referred to as leaching. electrorefining uses a similar process to remove impurities from a metal.
the electrowinning process is a relatively traditional method to recover waste metals through the rinse system and at the same time reduce waste water generation and chemical discharge. the most common metals recovered using electrowinning are gold silver copper cadmium and zinc due to their relative value.
electrowinning theory gold is recovered from pregnant (gold bearing) solution by the process of electrowinning. an electric current is passed through the solution causing solid gold to plate out on steel wool cathodes. electrowinning is performed in cells constructed of non-conducting plastic material. the cell
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.
but before we dive deeper into understanding electrowinning let us look more generally at what an electrolytic process is since electrowinning is an electrolytic process. an electrolytic process is based on the principles of electrolysis. electrically conductive solution is created when an electrolyte is dissolved in water or other polar