Title: Process for separation of rare earth elements by liquid-liquid extraction
Application Number: 88101564 Application Date: 1988.03.23
Publication Number: 1021833 Publication Date: 1988.11.02
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C01F17/00;C07F9/38;C22B59/00
Applicant(s) Name: Rhone-Poulenc Chimie (FR) Doumer France Address:
Inventor(s) Name: Jean-Louis Sabot;Thierry Delloye
Attorney & Agent: WU DAJIAN
Abstract:
    Rare-earth elements present in aqueous solutions are separated using a solvent by a process which consists in performing a liquid- liquid extraction between an aqueous phase containing the rare-earth nitrates and an organic phase, characterised in that a mixture of organophosphorus compounds is used as extraction agent.
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