What is meant by Electrometallurgy?
Definition of electrometallurgy : a branch of metallurgy that deals with the application of electric current either for electrolytic deposition or as a source of heat.
What is Electrometallurgy in chemistry?
Electrometallurgy is a method in metallurgy that uses electrical energy to produce metals by electrolysis. It is usually the last stage in metal production and is therefore preceded by pyrometallurgical or hydrometallurgical operations.
What is Electrometallurgy used for?
‘Electrometallurgy’ is the group of technologies used for extraction of metals from solutions, including molten salt solutions (‘electrowinning’), or for the purification of metals by electrochemical dissolution into/deposition out of such solutions (‘electrorefining’).
What is electrowinning process?
Electrowinning (or electroextraction) is a process of whereby metals, such as gold, silver and copper,are recovered from a solution by means of electrolytic chemical reaction. This takes place when an electric current is passed through the solution.
What is hydrometallurgy and Pyrometallurgy?
Hydrometallurgy uses aqueous solutions to extract metals from ores (leaching). Pyrometallurgy involves high temperature processes where chemical reactions take place. Electrometallurgy involves metallurgical processes that take place in some form of electrolytic cell.
What is Powder Metallurgy in manufacturing process?
Powder metallurgy is a metal-forming process performed by heating compacted metal powders to just below their melting points.
Does anode diminish in electrometallurgy?
The two applications of electrolysis in which the anode diminishes in mass are; Electroplating is the process in with the coating of one takes place on the other element by the process of electrolysis. For example; the coating of iron with copper.
What is electrometallurgy Shaalaa?
Electrometallurgy: A process of extraction of metals by electrolytic reduction of molten (fused) metallic compounds is called electrometallurgy.
Does anode diminish in Electrometallurgy?
What is leaching process in metallurgy?
Leaching is a process widely used in extractive metallurgy where ore is treated with chemicals to convert the valuable metals within into soluble salts while the impurity remains insoluble. These can then be washed out and processed to give the pure metal; the materials left over are commonly known as tailings.
What is the purpose of electrorefining?
Electrorefining of a metal by electrolysis is a way of purification of a metal previously extracted by classical metallurgical or electrochemical processes, with the aim of removing impurities, which could exhibit in negative effects on the physico–chemical and mechanical properties of the metal.