Titanium dioxide (TiO2), white powder, and turn to light yellow when heated. Titanium dioxide is a white inorganic pigment. With its feature of non-toxicity, excellent opacity, whiteness and brightness, it is considered the best and most important white pigments in the world, while it is used more than 80% of the total white pigments worldwide.
Titanium dioxide was first made by A. J. Rossi, France in the laboratory in 1908. In 1916, Norwegian Titanium Company built the world’s first titanium dioxide plant, with an annual output of 1000 tons. Titanium dioxide is produced from ilmenite by sulfate method and chloride method. In 1999, the United States produced 1493,000 tons of titanium dioxide. China produced titanium dioxide from 1950s. In 1999, its output was 139.7 million tons, compared with 177 million tons in 2000.
Usage distribution: 60% paint, 20% plastic and rubber, 10% paper making, 10% electrodes, ceramics, etc. Titanium dioxide is a high quality white pigment with high refractive index and stability, good covering performance and luster. Therefore, it is widely used in paint, paper making, plastics, rubber, chemical fiber, enamel and other industries. Commercial titanium dioxide is generally divided into two grades: rutile and anatase, and the price of the rutile is normally 50%-80% higher than price of anatase.