a mixture of iron ore and coal is then heated in a blast furnace to produce molten iron or pig iron from which steel is made. arcelormittal has a diversified fleet of production facilities to make steel both basic oxygen furnaces and electric arc furnaces.
recycling steel and iron does add complications when smelting. but it's not like 'virgin' iron ore was that pure. smelters have always had to deal with impurities of kind or other. and cast iron was often made from pig iron the first stage of refining. wrought iron and steel require further refining.
order my new children's book on amazon! orville the iron ore on amazon: https://amzn.to/2ixvkfi steel and iron is an essential part of our everyday life. it makes up the buildings where we work
then us steel installed basic oxygen process "bop" furnaces to convert coke and iron ore into pigs of steel at the edgar thompson works. the guy giving the tour said that the bop furnace and the
iron making. iron ore is mined in around 50 countries – the largest producers are australia brazil and china. around 98% of iron ore is used in steel-making. during the iron-making process a blast furnace is fed with the iron ore coke and small quantities of fluxes (minerals such as limestone which are used to collect impurities).
the advantage of steel over iron is greatly improved strength. the open-hearth furnace is one way to create steel from pig iron. the pig iron limestone and iron ore go into an open-hearth furnace. it is heated to about 1600 degrees f (871 degrees c). the limestone and ore form a slag that floats on the surface.
ironmaking the first step in making steel involves the raw inputs of iron ore coke and lime being melted in a blast furnace. the resulting molten iron—also referred to as hot metal—still contains 4-4.5% carbon and other impurities that make it brittle.