Shaft furnaces are used for_______________________?
Correct answer: D. All A., B. and C.
- A. Smelting
- B. Calcining
- C. Roasting
- D. All A., B. and C.
Explanation
A shaft furnace is a vertical furnace used for processes in which solids move downward through a hot gas stream, including smelting, calcining, and roasting. Therefore, all three listed operations are possible.
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