Separation and purification of tantalum from plumbomicrolite of amazonite deposit in Kola Peninsula by acid leaching and solvent extraction

A plumbomicrolite concentrate (PMC) was decomposed with the mixture of HF and H2SO4, HF and HCl, HF and HNO3 acids. Optimal conditions ensuring high recovery of tantalum and niobium (99%) into solution, and radionuclides into insoluble residue were determined. Fluoride-sulfuric acid and fluoride-nit...

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Bibliographic Details
Main Author: Manukovskaya, Diana
Other Authors: Masloboeva, Sofja, Diana Manukovskaya
Format: Dataset
Language:unknown
Published: 2019
Subjects:
Interdisciplinary sciences
Minerals
Chemical Processing
Extraction Methods
Radioactive Elements
hist
archeo
Kola Peninsula
kola peninsula
Online Access:https://doi.org/10.17632/2h2wxbxnpw.2
https://doi.org/10.17632/2H2WXBXNPW
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Summary:A plumbomicrolite concentrate (PMC) was decomposed with the mixture of HF and H2SO4, HF and HCl, HF and HNO3 acids. Optimal conditions ensuring high recovery of tantalum and niobium (99%) into solution, and radionuclides into insoluble residue were determined. Fluoride-sulfuric acid and fluoride-nitric acid schemes were proposed for PMC processing with an extraction separation of tantalum form niobium, lead and impurities and production of high-purity tantalum compounds.

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