How is iron ore extracted?

Most iron ores are extracted by surface mining. Some underground mines do exist, but, wherever possible, surface mining is preferred because it is cheaper.

How is iron purified from its ore?

Firstly, iron ore is reduced to pig iron in a blast furnace, then excessive carbon is removed by the basic oxygen furnace (BOF) or electric arc furnace (EAF), and impurities are further eliminated via a secondary refining route, through which the required purity level is achieved.

How is iron ore turned into iron?

Iron ore is converted into various types of iron through several processes. The most common process is the use of a blast furnace to produce pig iron which is about 92-94\% iron and 3-5\% carbon with smaller amounts of other elements.

When iron is converted into steel oxygen is used to oxidise the iron?

D When iron is converted into steel, oxygen is used to oxidise the iron. 12 The Basic Oxygen Process converts iron into steel. In step 1, oxygen is blown into impure molten iron. In step 2, oxides are removed by reaction with calcium oxide.

Can iron oxide be turned into iron?

Iron rusts or reverts back to iron oxide because iron oxide is the more stable form of iron than pure iron ( or steel ) itself. Rust can be transformed back to iron but drastic conditions are needed. Iron oxide or rust can be converted back to iron by heating it in a reducing atmosphere in a furnace till molten.

Which method is used to separate slag from molten?

Answer: Explanation: Blast furnace slag is recovered by melting separation from blast furnaces that produce molten pig iron. It consists of non-ferrous components contained in the iron ore together with limestone as an auxiliary materials and ash from coke.

Can rust be made into iron?

Rust and Recycling The smelting process involves breaking any bonds created by oxygen and iron so it can be refined into metals like steel. To recycle rusted metal, you need to remove the oxygen again. If the rust is simply melted, it will re-form once the metal cools.