The chemical process of concentrating ilmenite and rutile minerals. Mineral sands are physically concentrated using gravity separation (spirals or tables). Ilmenite, rutile and leucoxene have higher SG(4~5) compared to quartz, garnet and kyanite (~). This difference in SG is used to separate the heavy mineral sands from quartz and clays.
Rutile, Ilmenite and Leucoxene are very versatile minerals and can be used as a protective coating for welding electrodes, in production of pigments, as filler in paints to increase whiteness and brilliance, and as a source of titanium for the production of titanium metals.