Question

The branch of electrometallurgy comprises

• A. Electrolytic refining
• B. Electrolytic extraction
• C. Electroplating
• D. All of the above

Answer 1

The correct option is D

All of the above

Electrometallurgy is the term given to the processes of metal electrodeposition. It can be divided into four categories:

1. Electrowinning: The extraction of metals from their ores. This is simply known as “electrolytic extraction”
2. Electrorefining: Crude or impure metals are refined using electrolysis. Powder metallurgy is the term for manufacturing metal components from metal powder. This may or may not be classified as part Electrorefining although they are closely related. Compared to conventional metal forming practices,powder metallurgy significantly minimizes metal removal losses.
3. Electroplating: It is the technique used to deposit a layer of one metal on another
4. Electroforming: This is actually a manufacturing process to produce thin metal parts.