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Bessemer converter operation: interpreting the white flame Statement to evaluate: “The dying down of the white flame during Bessemer blowing indicates that the air is burning out silicon and manganese.” Decide whether the statement is correct or incorrect.

Difficulty: Easy

Correct (True)
Incorrect (False)
True only for acid converters
True only at the start of the blow

Correct Answer: Incorrect (False)

Explanation:

Concept
In the Bessemer process, Si and Mn oxidize first, and then C is oxidized vigorously, producing the characteristic bright/white flame. The flame dying down signals that carbon has been largely removed, not that Si and Mn are being burned out (that occurs earlier).

Final Answer
Incorrect (False)

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