Titanium Dioxide (NR930 Rutile) - China

Brief Overview
Titanium dioxide, or Titania, is an inorganic compound known for its pure white powder form with the chemical formula TiO2. It typically exists in two primary crystal structures: rutile and anatase. Anatase, being cost-effective, easily dispersible in water-based systems, and an excellent opacifier, has untreated titanium dioxide with a refractive index of 2.55. However, it is infrequently employed in exterior paint applications, excluding highway paints.

Manufacturing Process
The sulfur process enables the production of titanium dioxide (TiO2) in both anatase and rutile forms through the following steps:
Dissolving the raw material containing titanium dioxide in concentrated sulfuric acid
Precipitating hydrous titanium dioxide from the acidic solution through dilution and boiling (hydrolysis)
Removing contaminants through leaching
Increasing particle size through calcination at temperatures around 1.000 C
Purifying and subsequently coating the pigment with organic and inorganic oxides.