Preparation of Nd 2 O 3  through the extraction separation of rare-earth concentrate recovered from phosphogypsum

A. A. Semenov; A. M. Abramov; Yu. B. Sobol’; Zh. N. Galieva; A. V. Galantsev; V. O. Gerya

doi:10.1134/S0020168516020138

Preparation of Nd₂O₃ through the extraction separation of rare-earth concentrate recovered from phosphogypsum

Authors: Semenov A.A.¹, Abramov A.M.¹, Sobol’ Y.B.¹, Galieva Z.N.¹, Galantsev A.V.¹, Gerya V.O.¹
Affiliations:
1. OOO Laboratory of Innovative Technologies
Issue: Vol 52, No 2 (2016)
Pages: 233-237
Section: Article
URL: https://journals.rcsi.science/0020-1685/article/view/157342
DOI: https://doi.org/10.1134/S0020168516020138
ID: 157342

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Abstract

We present a study of the extraction separation of a rare-earth group concentrate (GC) recovered from phosphogypsum waste from OAO Voskresensk Mineral Fertilizers using different extractants, followed by the preparation of neodymium oxide suitable for the fabrication of magnets. The proposed process has been tested using a pilot GC separation apparatus which includes three sequential automatic cascades of EC-10FA centrifugal extractors (Skaigrad Group).