How is antimony purified?

Answer 1

Antimony is purified primarily through a process called pyrometallurgy. The crude antimony is first roasted to convert it into antimony trioxide, which is then reduced to metallic antimony using carbon or other reducing agents in a furnace. Alternatively, hydrometallurgical methods can be employed, involving leaching with acids or bases followed by precipitation to isolate pure antimony. The final product is typically refined through further heating and refining to achieve the desired purity levels.