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The Extraction and Uses of Titanium

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Introduction

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. ...read more.

Middle

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. ...read more.

Conclusion

An inert atmosphere of argon is used to prevent any contamination of the metal with oxygen or nitrogen. The sodium chloride by product is washed out with dilute hydrochloric acid, leaving titanium as a granular powder. This is a batch process where raw materials are reacted together in a single 'batch' and the products are separated from the reaction mixture. For further production, the whole process needs to be repeated from scratch. ?? ?? ?? ?? Nathalie Smilovici 13/08/02 ...read more.

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