Carbothermic reactions are thermicchemical reactions which use carbon as the reducing agent at high temperature. The most prominent example is used in iron ore smelting. Thermic reactions are chemical reactions which are thermic: either highly exothermic (producing heat) or endothermic (absorbing heat). ... A chemical reaction is a process involving one, two or more substances (called reactants), characterized by a chemical change and yielding one or more product(s) which are different from the reactants. ... General Name, Symbol, Number carbon, C, 6 Chemical series nonmetals Group, Period, Block 14, 2, p Appearance black (graphite) colorless (diamond) Atomic mass 12. ... The term redox process accounts for all processes in which atoms have their oxidation number (oxidation state) changed. ... General Name, Symbol, Number iron, Fe, 26 Chemical series transition metals Group, Period, Block 8, 4, d Appearance lustrous metallic with a grayish tinge Atomic mass 55. ...
It particularly relates to apparatuses including a reduction furnace wherein alumina and carbon are reacted by a carbothermic process to produce aluminum contaminated with 5-15% aluminum carbide.
A carbothermic process has many potential advantages which are becoming increasingly important as energy costs continue to increase.
The carbothermic reduction furnace of this invention comprises means to recover fuel values from the CO produced as a reduction product while minimizing the production of aluminum-containing vapors from the reduction zone.
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