Question

How is zinc extracted from its ore

Answer 1

The low concentration of the zinc sulphide minerals in most zinc ores mean that the ore must first be concentrated before extracting the metal.
The zinc blende(sphalerite:zinc sulphide)is first crushed to powder and then treated by froth flotation process.This process is described in the copper unit.It is used in extraction of several metals.
2ZnS+3O2---->2ZnO+2SO2.
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