The Bayer process is the principal industrial means of refining bauxite to produce alumina (aluminium oxide).
b) Explain Van arkel process
Van Arkel method is used for refining Zirconium or Titanium. In this method, oxygen and nitrogen, present as an impurity is removed by heating metal in an evacuated vessel with iodine.
c) Explain Leaching
Leaching is the natural process by which water soluble substances are washed out from soil or wastes. These leached out chemicals cause pollution of surface and sub-surface water.
d) Explain mond's process
A process for obtaining nickel by heating the ore in carbon monoxide to produce nickel carbonyl vapour, which is then decomposed at a higher temperature to yield the metal.
Answers & Comments
Answer:
a) Explain bayer's process
The Bayer process is the principal industrial means of refining bauxite to produce alumina (aluminium oxide).
b) Explain Van arkel process
Van Arkel method is used for refining Zirconium or Titanium. In this method, oxygen and nitrogen, present as an impurity is removed by heating metal in an evacuated vessel with iodine.
c) Explain Leaching
Leaching is the natural process by which water soluble substances are washed out from soil or wastes. These leached out chemicals cause pollution of surface and sub-surface water.
d) Explain mond's process
A process for obtaining nickel by heating the ore in carbon monoxide to produce nickel carbonyl vapour, which is then decomposed at a higher temperature to yield the metal.
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