MetallurgyHardBloom L3

Question

Calcium silicate slag formed in extraction of iron

Options

A.prevents the reoxidation of molten iron.

B.catalyzes the combustion of carbon.

C.reduces CO₂ to CO at the bottom of the furnace.

D.is used in cement industry.

Solution

Sol. Baeyer’s Process :

Al₂O₃ + NaOH → NaAlO₂

Fe₂O₃ + NaOH →

Hall’s Process :

Al₂O₃ + Na₂CO₃ → NaAlO₂

SiO₂ + Na₂CO₃ →

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