Question

concentration of bauxite ore of aluminium ore is done by ​

Answer 1

Answer:

In the Bayer process, bauxite ore is heated in a pressure vessel along with a sodium hydroxide solution (caustic soda) at a temperature of 150 to 200 °C. At these temperatures, the aluminium is dissolved as sodium aluminate (primarily [Al(OH)4]−) in an extraction process.

Answer 2

Answer:

In the Bayer process, bauxite ore is heated in a pressure vessel along with a sodium hydroxide solution (caustic soda) at a temperature of 150 to 200 °C. At these temperatures, the aluminium is dissolved as sodium aluminate (primarily [Al(OH)4]−) in an extraction process.Hoope's method is used in electrolytic refining of Al (electrolysis of alumina). All other methods are used for concentration of bauxite ore.

Explanation:

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