Uses of Ilmenite


Ilmenite is the primary ore of titanium metal. Small amounts of titanium combined with certain metals will produce durable, high-strength, lightweight alloys. These alloys are used to manufacture a wide variety high-performance parts and tools. Examples include: aircraft parts, artificial joints for humans, and sporting equipment such as bicycle frames. About 5% of the ilmenite mined is used to produce titanium metal. Some ilmenite is also used to produce synthetic rutile, a form of titanium dioxide used to produce white, highly reflective pigments.

rock tumbler polish
Pigments and Polishing Compounds: Titanium dioxide powder is carefully processed to remove impurities and classified by particle size. It is then sold for use as whiting, pigments, and polishing compounds. The image is a rock tumbler barrel just opened with a thick white froth of metal oxide polish.

Most of the remaining ilmenite is used to make titanium dioxide, an inert, white, highly reflective material. The most important use of titanium dioxide is as a whiting. Whitings are white, highly reflective materials that are ground to a powder and used as pigments. These pigments produce a white color and brightness in paint, paper, adhesives, plastics, toothpaste, and even food.

ilmenite basalt from the moon
Lunar Ilmenite Basalt: Apollo astronauts found ilmenite-rich basalts at multiple locations on the Moon. The reference block at lower right is one cubic centimeter. Image by NASA.

Titanium dioxide is also used to make powders with a tightly controlled particle size range. These powders are used as inexpensive polishing abrasives in a variety of lapidary work that includes rock tumbling, lapping, cabbing, sphere making, and faceting. Titanium oxide abrasives are used in many other industries.


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