Results for: oxygen-steelmaking

From where do you get nitrogen gas?

From the air around us, since air is composed of 78.08% nitrogen. Nitrogen gas is an industrial gas produced by the fractional distillation of liquid air, or by mechanical means using gaseous air (i.e. pressurised reverse osmosis membrane or Pressure… Full Answer

Uses of pig iron?

Today, pig iron is typically poured directly out of the bottom of the blast furnace through a trough into a ladle car for transfer to the steel mill in mostly liquid form, referred to as hot metal. The hot metal… Full Answer

Why is limestone used in steelmaking?

Limestone is used as a flux to assist the removal of impurities in the steel such as sulphur, phosporous etc. Mostly, limestone is converted (calicined) to burnt lime first in a kiln before being used for steelmaking. However smaller amounts… Full Answer

What are the industrial uses of oxygen?

Oxygen is important for all combustion process, such as the burning of the hydrocarbon fuels (oil, coal, petrol, natural gas) which heat our homes and power our cars. Fires need O2 to burn, and removal of O2, by for example… Full Answer