Full papers of hyperlinked titles can be downloaded via ScienceDirect.

Steven Ghambi, Sergio Sanchez-Segado, Vitalis Chipakwe, Animesh Jha, An investigation on hydrofluoric (HF) acid-free extraction for niobium oxide (Nb2O5) and tantalum oxide (Ta2O5) from columbite/tantalite concentrates using alkali reductive roasting, Minerals Engineering, Vol.173, 2021

Weidong Xing, Jie Wang, Liu Zhu, Xueyi Guo, An integrated process for separation and recovery of tantalum from spent TaCrTi sputtering targets by hydrometallurgical methods, Minerals Engineering, Vol.173, 2021

C.P.B. Araujo, C.M. Barbosa, M.V.M. Souto, A.B. Vital, T.E.B. Ramalho, C.P.de Souza, U.U. Gomes, Evaluation of the effect of the fluxing agent over the purification of Columbite-Tantalite ore for the synthesis of Nb,Ta mixed oxides, Minerals Engineering, Vol.170, 2021

A. Shikika, F. Muvundja, M.C. Mugumaoderha, St. Gaydardzhiev, Extraction of Nb and Ta from a coltan ore from South Kivu in the DRC by alkaline roasting � thermodynamic and kinetic aspects, Minerals Engineering, Vol.163, 2021

Miao Cao, Hao Bu, Yude Gao, A mixed collector system for columbite-tantalite flotation, Minerals Engineering, Vol. 161, 2021

Miao Cao, Hao Bu, Qingbo Meng, Yude Gao, Effect of surface modification by lead ions on flotation behavior of columbite-tantalite, Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol.611, 2021

Tiago Fernandes de Oliveira, Carlson Pereira de Souza, Andr� Luis Lopes-Moriyama, Acid leaching and thermal treatments in the obtaining of mixed oxides of Nb and Ta from ferrocolumbite, Minerals Engineering, Vol. 147, 2020

E. Allain, N. Kanari, F. Diot, J. Yvon, Development of a process for the concentration of the strategic tantalum and niobium oxides from tin slags, Minerals Engineering, Vol. 134, 2019

Gauthier J.-P. Deblonde, David Bengio, Denis Beltrami, Sarah B�lair, G�rard Cote, Alexandre Chagnes, A fluoride-free liquid-liquid extraction process for the recovery and separation of niobium and tantalum from alkaline leach solutions, Separation and Purification Technology, Vol. 215, 2019

W. Purcell, H. Potgieter, M. Nete, H. Mnculwane, Possible methodology for niobium, tantalum and scandium separation in ferrocolumbite, Minerals Engineering, Vol. 119, 2018

M. Nete, W. Purcell, J.T. Nel, Non-fluoride dissolution of tantalum and niobium oxides and their separation using ion exchange, Hydrometallurgy, Vol. 173, 2017

G.J.-P. Deblonde, V. Weigel, Q. Bellier, R. Houdard, F. Delvall�e, S. B�lair, D. Beltrami, Selective recovery of niobium and tantalum from low-grade concentrates using a simple and fluoride-free process, Separation and Purification Technology, Vol. 162, 2016

G.J.-P. Deblonde, A. Chagnes, S. B�lair, G. Cote, Solubility of niobium(V) and tantalum(V) under mild alkaline conditions, Hydrometallurgy, Vol. 156, 2015

M.H. Rodriguez, G.D. Rosales, E.G. Pinna, D.S. Suarez, Extraction of niobium and tantalum from ferrocolumbite by hydrofluoric acid pressure leaching, Hydrometallurgy, Vol. 156, 2015

M. Nete, W. Purcell, J.T. Nel, Separation and isolation of tantalum and niobium from tantalite using solvent extraction and ion exchange, Hydrometallurgy, Vol. 149, 2014

X. Yang, J. Zhang, X. Fang, X. Wang, Purification and stripping of tantalum from organic phase and elimination of emulsification by ultrasound, Hydrometallurgy, Vol. 146, 2014

M.J. Ungerer, D.J. van der Westhuizen, G. Lachmann, H.M. Krieg, Comparison of extractants for the separation of TaF₅ and NbF₅ in different acidic media, Hydrometallurgy, Vol. 144-5, 2014

S. Chehreh Chelgani, B. Hart, M. Biesinger, J. Marois, M. Ourriban, Pyrochlore surface oxidation in relation to matrix Fe composition: A study by X-ray photoelectron spectroscopy, Minerals Engineering, Vol. 55, 2014

X. Yang, X. Wang, C. Wei, S. Zheng, Q. Sun, D. Wang, Extraction kinetics of tantalum by MIBK from pulp using Lewis cell, Hydrometallurgy, Vol. 131-132, 2013

A.D. Pienaar, J.B. Wagener, P.L. Crouse, Niobium and tantalum separation by gas-phase fluorination, International Journal of Mineral Processing, Vol. 114-117, 2012

M.J. Kabangu, P.L. Crouse, Separation of niobium and tantalum from Mozambican tantalite by ammonium bifluoride digestion and octanol solvent extraction, Hydrometallurgy, Vol. 129-130, 2012

O. Sanda, E.A. Taiwo, Solvent extraction of tantalum(V) from aqueous sulphate/fluoride solution using trioctyl phosphine oxide in MIBK, Hydrometallurgy, Vol. 127-128, 2012

Zhaowu Zhu, Chu Yong Cheng, Solvent extraction technology for the separation and purification of niobium and tantalum: A review, Hydrometallurgy, Vol. 107, No. 1-2, 2011

X. Wang, S. Zheng, H. Xu, Y. Zhang, Leaching of niobium and tantalum from a low-grade ore using a KOH roast-water leach system, Hydrometallurgy, Vol. 98, No. 3-4, 2009

Gul, A., Separation of microlite from zircon by flotation, Canadian Metallurgical Quarterly, Vol.45 No.1, 2006

H. Zhou, S. Zheng, Y. Zhang, Leaching of a low-grade niobium-tantalum ore by highly concentrated caustic potash solution. Hydrometallurgy, Vol.80 No.1-2, 2005

H.m. Zhou, D.q. Yi, Y. Zhang, S.l. Zheng, The dissolution behavior of Nb₂O₅, Ta₂O₅ and their mixture in highly concentrated KOH solution. Hydrometallurgy, Vol.80 No.1-2, 2005

A. Agulyansky, L. Agulyansky, V.F. Travkin, Liquid-liquid extraction of tantalum with 2-octanol., Chemical Engineering and Processing, Vol.43 No.10, 2004

M. Rodriguez, J. Rivarola, M. del C. Ruiz, The effects of carboxylic acid addition on hydrofluoric acid autoclave leaching of a ferrocolumbite. Hydrometallurgy, Vol.74 No.1-2, 2004

O.M. El Hussaini, N.M. Rice, Liquid-liquid extraction of niobium and tantalum from aqueous sulphate/fluoride solutions by a tertiary amine. Hydrometallurgy, Vol.72 No.3-4, 2004

Dutra, A. J. B. da Silva, F. T. Espinola, A. Tantalum electrowinning from molten fluorides: characterization of structure and defects. Trans. Insitution Mining & Metallurgy, Section C, Vol. 110, May/August 2001

Bose, D. K., Gupta, C. K., Extractive Metallurgy of Tantalum. Mineral Processing and Extractive Metallurgy Review. Vol. 22 Numbers 4/6, 2001

J.F. Oliveira, S.M. Saraiva, J.S. Pimenta, A.P.A. Oliveira. Kinetics of Pyrochlore Flotation from Araxa Mineral Deposits. Minerals Engineering, Vol.14, No.1, 2001

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