The main use of titanium dioxide (TiO2) is as a white powder pigment used in products such as paints, coatings, plastics, paper, inks, fibres, food and cosmetics. Titanium dioxide also has good ultraviolet (UV) light resistance properties and is seeing growing demand in photocatalysts.
Producers and analysts estimate global growth for TiO2 at around 2-3%/year. Asia is the fastest growing market with projections of future growth rates of 6-7%/year. However, there is concern that TiO2 capacity is being added globally at a quicker rate than demand is growing.
Titanium dioxide is produced from either ilmenite, rutile or titanium slag. Titanium pigment is extracted by using either sulphuric acid (sulphate process) or chlorine (chloride route). The sulphate process employs simpler technology while the chloride route produces a purer product.
Titanium dioxide occurs as odourless, colourless to white crystalline powder in two forms, anatase and rutile. Titanium dioxide is not flammable, explosive and gives no reason to fire risks.
Titanium dioxide
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Titanium dioxide
Uses and Outlook
The main use of titanium dioxide (TiO2) is as a white powder pigment because of its brightness and very high refractive index. It provides good opacity to products such as paints, coatings, plastics, paper, inks, fibres, food and cosmetics. In particular, high performance grades of TiO2 are finding a growing market in the cosmetics sector.
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Titanium dioxide
Process Technologies
TiO2 is produced from either ilmenite, rutile or titanium slag. Titanium pigment is extracted by using either sulphuric acid (sulphate process) or chlorine (chloride route). The sulphate process employs simpler technology than the chloride route and can use lower grade, cheaper ores. However, it generally has higher production costs and with acid treatment is more expensive to build than a chloride plant. But the latter may require the construction of a chloralkali unit.
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