Question
Download Solution PDFWhat is the by-product that is formed by smelting Pig iron at 1500° C?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
- Blast Furnace Slag:
- When pig iron is smelted in a blast furnace at temperatures around 1500°C, a by-product called blast furnace slag is formed. This slag consists of impurities like silica, alumina, and other oxides that are separated from the molten iron. The slag floats on top of the molten iron and can be removed and processed further for various uses, such as in cement production or as a construction aggregate.
Additional Information
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Fly Ash:
- Fly ash is a by-product of burning pulverized coal in thermal power plants. It is collected from the flue gases and is commonly used as a supplementary cementitious material in concrete.
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Surkhi:
- Surkhi is a finely ground product made from burnt clay or brick. It is used as a pozzolanic material in construction to improve the properties of mortar and concrete.
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Silica Fume:
- Silica fume is a by-product of producing silicon metal or ferrosilicon alloys in electric arc furnaces. It consists of very fine particles of silicon dioxide. It is used as a supplementary cementitious material to improve the mechanical properties and durability of concrete.
Last updated on Jul 1, 2025
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