Electrolytic Refining Electrolytic refining is a chemical process used to purify metals by removing impurities and refining them to achieve desired properti...
Electrolytic Refining
Electrolytic refining is a chemical process used to purify metals by removing impurities and refining them to achieve desired properties. In this method, the impure metal is placed in an electrolyte solution, which conducts electricity. An electric current is then passed through the solution, which causes the impurities to dissolve and be carried away. The impurities are then removed by filtration, leaving the pure metal behind.
Zone Refining
Zone refining is a specialized form of electrolytic refining that involves passing a current through a metal sheet or foil. The sheet or foil is placed in an electrolyte solution and connected to an electric current. As the current is passed through the solution, it creates a region of high concentration of impurities near the electrode. This region is called a zone of influence. The impurities diffuse from the zone of high concentration to the cathode, which is the electrode where the impurities are removed. The pure metal is then deposited on the cathode.
In summary, electrolytic refining and zone refining are both methods used to purify metals by removing impurities and refining them to achieve desired properties