What is nickel used for
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How is nickel mined and refined.
Nickel mine
Mine that produces nickel
A nickel mine is a mine that produces nickel.
Nickel extraction process pdf
Some mines produce nickel primarily, while some mines produce nickel as a side-product of some other metal that has a higher concentration in the ore.[1]
Geology
[edit]Nickel occurs in two general types of ores, sulfides and oxides.
The most important sulfide ore is pentlandite (Ni9S8) although many other nickel sulfides are known. Furthermore, nickel is often a constituent of iron sulfides such as pyrrhotite. The principal (i.e.
economically most important) nickel oxides are nickeliferous limonite ((Fe1−xNix)O(OH)·nH2O).[1][2] Pentlandite supplies an estimated 65% of the world's nickel but nickel laterites constitute the largest reserves.
Extraction of nickel from pentlandite ore[edit]
Nickel content of its ores is often only a few percent by weight.
Sulfide ores are subjected to comminution followed by froth flotation. Pentlandite and related minerals separate with sulfides of copper, cobalt, and iron.[1]
Two hydrometallurgical methods have been developed to extract nic
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