Question:
In the Bayer�s process, the leaching of alumina is done by using
In the Bayer�s process, the leaching of alumina is done by using
Updated On: Jul 26, 2024
- $Na_{2}CO_{3}$
- NaOH
- $SiO_{2}$
- CaO
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The Correct Option is B
Solution and Explanation
NaOH is used as a leaching solvent to dissolve alumina.
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General Principles and Processes of Isolation of Elements
What are Ores and Minerals?
Minerals are the naturally occurring, homogeneous inorganic solid substances. They are having a definite chemical composition and crystalline structure, hardness and color. For example, copper pyrite, calamine, etc.
Impurities in an ore are called gauge. The removal of a gauge from the ore is called concentration ore.
Several steps are involved in the extraction of pure metal from ores. Major steps are as follows –
- Concentration of the ore
- Isolation of the metal from its concentrated ore
- Purification of the metal