Email this article Extraction of antimony and niobium with tributyl phosphate from fluoride-ammonium solutions
- Authors: Maiorov V.G.1, Mudruk N.V.1, Nikolaev A.I.1, Elizarova I.R.1, Safonova L.A.1
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Affiliations:
- Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center
- Issue: Vol 50, No 5 (2016)
- Pages: 781-784
- Section: Technology of Inorganic Substances and Materials
- URL: https://bakhtiniada.ru/0040-5795/article/view/171089
- DOI: https://doi.org/10.1134/S0040579516050158
- ID: 171089
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Abstract
The purification of niobium from antimony impurity via extraction with tributyl phosphate from solutions of the HF + NH4F mixture has been studied. It has been established that at an HF + NH4F content equal to 7–16 mol/L and an NH4F concentration of 30% in the mixture, Sb extraction hardly changes (70–80% for one stage), and Nb coextraction abruptly decreases to values of less than 0.5%.
About the authors
V. G. Maiorov
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center
Email: nikol_ai@chemy.kolasc.net.ru
Russian Federation, Apatity
N. V. Mudruk
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center
Email: nikol_ai@chemy.kolasc.net.ru
Russian Federation, Apatity
A. I. Nikolaev
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center
Author for correspondence.
Email: nikol_ai@chemy.kolasc.net.ru
Russian Federation, Apatity
I. R. Elizarova
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center
Email: nikol_ai@chemy.kolasc.net.ru
Russian Federation, Apatity
L. A. Safonova
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center
Email: nikol_ai@chemy.kolasc.net.ru
Russian Federation, Apatity
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