Question

How can coal be used for irons?​

Answer 1

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The role of coal in the steel industry. Carbon is a major reducing agent and heat source to convert iron ores to iron and steel.

Answer 2

Answer:

Explanation:

- Coking coal is a key raw material in steel production.

- it is used to make steel out of iron

Metallurgical coal, also known as coking coal, is used to produce coke, the primary source of carbon used in steelmaking. Metallurgical coal differs from thermal coal, which is used for energy and heating, by its carbon content and its coking ability. Coking refers to the coal's ability to be converted into coke, a pure form of carbon that can be used in basic oxygen furnaces. Bituminous coal—generally classified as metallurgical grade—is harder and blacker and contains more carbon and less moisture and ash than low-rank coals.

The grade of coal and its coking ability are determined by the coal's rank—a measure of volatile matter and degree of metamorphism—as well as mineral impurities and the ability of the coal to melt, swell and resolidify when heated.