As a new method of nickel extractive metallurgy, the process of chlorine leaching purification electrolysis for nickel sulphide concentrate usually USES solvent extraction as its purification.
硫化镍精矿氯气浸出—净化—电积工艺作为镍提取冶金的新方向，其净化过程大多采用溶剂萃取方法。
2
Technology of microbial metallurgy is applied widely at present, and it 's utilized in industrial extraction of copper.
目前生物冶金技术已广泛应用，并在铜的提取上实现了工业应用。
3
Metallurgy is the physics, chemistry, and engineering related to metals from ore extraction to the final product.