The West must deal with thorium content limits before it can hope to become rare-earths independent…
James Kennedy works closely with the Thorium Energy Alliance to promote US legislation for the commercial development of thorium energy systems and rare earths. And when he asked me to review a video where he presents a paper entitled “Creating a Multinational Platform, Thorium, Energy and Rare Earth Value Chain – a Global Imbalance in the Rare Earth Market” – it occurred to me that Tracy’s frequently referenced ‘800 lb. gorilla’ in the proverbial rare earth room was overdue for discussion: thorium.
Kennedy’s essential argument is that the rare earth imbalance is largely the result of regulations with unintended consequences: “Rare earths and thorium have become linked at the mineralogical and geopolitical level.” In other words, thorium should be considered as a rare earth mineral.
There is, in fact, a close relationship between thorium and rare earths; they often come together. In fact, monazite, was first mined to produce thorium and rather than rare earths. In the 19th century, thorium was used to make gas mantles. Later, with the development of technology that required rare earths to function, monazite started to be mined for elements other than thorium. Meanwhile, monazite itself is a by-product.
It is separates easily, through gravity and at almost no cost, in the mining of titanium or zirconium, such that the monazite can be said to be produced practically free of charge. The United States was the leading supplier of monazite – which was in the main source of rare earths – in the first decades of the rare earths industry (the post WW2 period).