Perhaps it is worthwhile to read these as there is not a lot of information available on using lasers to separate of minerals from REE, it seems to be a fairly new field?
Shining Light on the Separation of Rare Earth Metals
New studies identify key molecular characteristics to potentially separate rare earth metals cleanly and efficiently with light.
The 17 rare earth elements are chemically similar. Methods used to purify the desired elements from natural sources produce massive quantities of waste. Purifying one ton of a rare earth element creates tons of acidic and radioactive waste. The processes are also energy intensive. Knowing how to efficiently use light to separate selected rare earths could reduce waste and lower costs. New methods for recycling europium and other rare earths using light-driven chemistry is also an important direction to diversify the supply chain for these critical elements.
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