We have successfully tested a process to make a saleable product.
Under a basic research contract with the Defense Logistics Agency (U.S.A.), Watts & Fisher achieved the following:
Confirmation of its leaching process through a rigorous scientific study published after peer review.
Development of a simple downstream process
Quantitative rejection of thorium in a single stage
Recovery to the final product of 92% of light rare earths from coarse monazite sand with no grinding
A product grade of 99 wt.% with no detectable thorium, uranium or phosphorus