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The Extraction and Uses of Titanium
Member rating: No Rating | Words: | Submitted: Sun Dec 15 2002
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The Extraction and Uses of Titanium Titanium is a very desirable engineering metal as it has a low density, high strength and high resistance to corrosion. However, small traces of carbon and other impurities can render the metal brittle. Titanium is therefore extracted from its chloride by reduction with an active metal. This is expensive but worthwhile as only very pure titanium is useful. The main ore of titanium is called rutile and contains titanium IV oxide. Titanium is manufactured by a two stage batch process. Firstly rutile is converted to titanium IV chloride using chlorine and coke at around 900°C: TiO2 + 2C + 2Cl2 --> TiCl4 + 2CO The titanium IV chloride is a colourless liquid which fumes in moist air because of hydrolysis. It is purified from other chlorides such as those of iron, silicon and chromium by fractional distillation under an atmosphere of argon or nitrogen....
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