Rare earths march towards supply diversity
Published: Tuesday, 03 July 2012
As China continues to hold the whip hand on rare earths, so the need to develop new sources becomes ever-more critical, as Gerry Clarke reports
Three decades or so ago, the rare earth minerals were
exploited by relatively few companies for traditional uses such
as lighter flints, using the mixed rare earth alloy mischmetal;
fluid-cracking catalysts for oil refining, using rare earth
chlorides; and polishing powders, using mainly cerium oxide.
But, the writing was on...