Full papers of hyperlinked titles can be downloaded via ScienceDirect.

M. Rodriguez, O. Quiroga and M. del C. Ruiz, Kinetic study of ferrocolumbite dissolution in hydrofluoric acid medium, Hydrometallurgy, Vol.85 No.2-4, 2007

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

G.L. Chen, D. Tao, H. Ren, F.F. Ji, J.K. Qiao, An investigation of niobite flotation with octyl diphosphonic acid as collector, International Journal of Mineral Processing, Vol.76 No.1-2, 2005

H. Ren, F.F. Ji, G.L. Chen, D. Tao, J.K. Qiao, An investigation of fersmite flotation., International Journal of Mineral Processing, Vol.74 No.1-4, 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

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