Saved Bookmarks
| 1. |
Write the complete set of reactions occurring in the zone of reduction in the blast furnace in the metallurgy of iron. |
|
Answer» Solution :In ELLINGHAM diagram, the graph of `CO rarr CO_(2)` CONVERSION remains below `Fe rarr Fe_(2)O_(3)` upto 1073 K (for `Fe rarr FeO`). SO , CO(g) act is reducing agent upto this temperature. `3Fe_(2)O_(3) + CO rarr 2Fe_(3)O_(4)` (IE. `FeO.Fe_(2)O_(3)) + CO_(2)` `Fe_(3)O_(4) + CO rarr 3FeO + CO_(2)` `FeO + CO rarr Fe + CO_(2)` Also, graph of `C rarr CO` is below the graph of `Fe rarr Fe_(2)O_(3)` after 1123 K. So, carbon ACTS as reducing agent above this temperature. `Fe_(2)O_(3) + C rarr 3CO + 2Fe`. |
|