Tantalite treatment process at the Congo deposit and columbite at the Zashikhinsk deposit
- Authors: Maiorov V.G.1, Nikolaev A.I.1, Kopkov V.K.1, Elizarova I.R.1
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Affiliations:
- Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Science Center
- Issue: Vol 50, No 4 (2016)
- Pages: 547-553
- Section: Selected Articles from the Journal Khimicheskaya Tekhnologiya
- URL: https://bakhtiniada.ru/0040-5795/article/view/170787
- DOI: https://doi.org/10.1134/S0040579516040175
- ID: 170787
Cite item
Abstract
The conditions of tantalite (Congo deposit) and the decomposition of columbite (Zashikhinsk deposit) using an HF and H2SO4 mixture when heated to 80°C have been found. The extraction of Ta and Nb into solutions achieved levels of more than 99% and ∼94% for tantalite and columbite, accordingly. It has been found that operation with filtrates that were obtained during the decomposition of concentrates and sent for the Ta and Nb extraction was radiation-proof. Schemes for the Ta and Nb separation and cleaning by octanol-1 extraction have been proposed.
Keywords
About the authors
V. G. Maiorov
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Science Center
Email: nikol_ai@chemy.kolasc.net.ru
Russian Federation, Akademgorodok 26a, Apatity, Murmansk oblast, 184209
A. I. Nikolaev
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Science Center
Author for correspondence.
Email: nikol_ai@chemy.kolasc.net.ru
Russian Federation, Akademgorodok 26a, Apatity, Murmansk oblast, 184209
V. K. Kopkov
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Science Center
Email: nikol_ai@chemy.kolasc.net.ru
Russian Federation, Akademgorodok 26a, Apatity, Murmansk oblast, 184209
I. R. Elizarova
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Science Center
Email: nikol_ai@chemy.kolasc.net.ru
Russian Federation, Akademgorodok 26a, Apatity, Murmansk oblast, 184209
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