New process could unlock untapped US ilmenite supplies

Published: Wednesday, 31 May 2017

A state government-funded pilot scheme has delivered pigment grade titanium dioxide from large but previously unusable deposits in Minnesota.

A pilot scheme has delivered pigment-grade titanium dioxide from the large ilmenite deposits in Minnesota, which were previously considered unsuitable for commercial use due to the presence of hard-to-remove contaminants.

The Natural Resources Research Institute, part of the University of Minnesota, announced on May 25 that high-quality titanium dioxide had been extracted...

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