ABSTRACT
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2 SUPPLY AND DEMAND
2.1 Titanium resource
Titanium is widely distributed in the Earth’s crust, whose abundance is 6320 × 10−6 just after iron, aluminum and magnesium. Ilmenite and rutile are the two most important titanium-bearing ore. From statistics provided by USGS, ilmenite with a world reserve of 650 mt (TiO2, the same below) in 2012 (Fig. 1) is mainly located in China (200 Mt), Australia (100 Mt), India (85 Mt) and South Africa (63 Mt). The total global production of
1 INTRODUCTION
Titanium, also call “The baby metal” by the Japan Titanium Association according to its application history, has many excellent qualities such as the combination of low specific gravity (only 60% of iron) and high strength (more than twice of iron, 6 times of aluminum), anticorrosion, biocompatibility and non-magnetic. Due to many of its property advantages and a broad application in aerospace, shipbuilding and automobile industry, Titanium has been given names like “Space metal”, “Marine metal” and “Smart metal”.
