In Bayer's process before digesting the one with concentrated Sodium h – InterviewSolution

1.	In Bayer's process before digesting the one with concentrated Sodium hydroxide it must be
Answer» Dissolved in CRYOLITE Roasted to convert FeO to `Fe_(2)O_(3)` Evaperated to remove water Dissolvedin `CaF_(2)` Solution :In Bayer.s process before digesting the ore with concentrated Sodium hydroxide it MUST be roasted to convert FeO to `Fe_(2)O_(3)`.

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