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Chemical reduction or smelting is a form of extractive metallurgy. The main use of smelting is to produce iron and steel. It makes use of a chemical reducing agent such as carbon ( coke, or in earlier times charcoal) to change the oxidation state of the metal ore. When coke is mixed with iron ore and heated, the oxygen will move from the iron to the carbon. The iron will be reduced, and the carbon will be oxidised, producing carbon dioxide and carbon monoxide. A fluxing agent such as limestoneshale overlaid by limestone. Cumberland Plateau, Tennessee Limestone is a sedimentary rock composed of mineral calcite (calcium carbonate). The primary source of this calcite is usually marine organisms. These organisms secrete shells that settle out of t is used to remove the accompanying rock gangue as slagSlag is the left-overs from the removal of non-metallic impurities during the smelting of metals. In nature the ores of metals such as iron, copper, lead, aluminium, and other metals are found in impure states, often oxidized and mixed in with silicates o.
See also
- Blast furnaceA blast furnace is a type of furnace for smelting whereby the combustion material and ore are supplied with air in the centre of the chamber such that the chemical reaction does not take place only at the surface. Typically this is used for the production
- FurnaceA furnace is a device for heating air or any other fluid. In British English the term is used exclusively to mean industrial furnaces which are used for many things, such as the extraction of metal from ore ( smelting) or in oil refineries and other chemi
- MetallurgyMetallurgy is a domain of materials science and of materials engineering that studies the physical and chemical behavior of metallic elements and their mixtures, which are called alloys. Extractive metallurgy Extractive metallurgy is the practice of separ
MetallurgyMetallurgy is a domain of materials science and of materials engineering that studies the physical and chemical behavior of metallic elements and their mixtures, which are called alloys. Extractive metallurgy Extractive metallurgy is the practice of separ
Industrial processes
