Separation and Recovery Process for Rare Earth Metals from Fluorescence Material Wastes Using Solvent Extraction
نویسنده
چکیده
The separation and recovery of rare earth metals from fluorescence material waste was investigated by using solvent extraction with 2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester in kerosene. Extraction equilibrium expressions were established for the trivalent metals (La, Ce, Eu, Tb, Y and Al) and divalent metals (Ca, Sr and Ba) for both single and multi components systems. The process simulation for the selective recovery of Eu, Tb and Y revealed that effective separation and recovery of Eu, Tb and Y can be achieved in two steps in a counter-current mixer-settler cascade from the alkaline earth metals (Ca, Sr and Ba) and La and Ce.
منابع مشابه
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