The possibility of sorption recovery of rare earth elements from the waste sulfate solutions of uranium leaching, which contain a few tens of milligrams per liter of the rare earth elements, up to 1 g L−1 of aluminum, and 2 g L−1 of iron, with using a carboxyl sorbent CYBBER LX 280, hydrated titanyl hydrogen phosphate and its analogue modified with zirconium(IV). It was shown that 95% of the rare earth elements and more can be recovered by neutralizing the solution by sodium hydroxide to pH ≈ 4.2, separating the resulting precipitate based on iron hydroxide, and subsequent sorption at the CYBBER LX 280 sorbent.
Russian Journal of Applied Chemistry – Springer Journals
Published: Apr 17, 2013
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