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Nell, J., Thorium in high-titania slag, Journal of the Southern African Institute of Mining & Metallurgy, Vol.108, No.1, 2008

A.M.I. Ali, Y.A. El-Nadi, J.A. Daoud and H.F. Aly, Recovery of thorium (IV) from leached monazite solutions using counter-current extraction, International Journal of Mineral Processing, Vol.81 No.4, 2007

A.-A. Zamani, M.R. Yaftian, Solvent extraction of thorium, lanthanum and europium ions by bis(2-ethylhexyl)phosphoric acid using 2-nitrobenzo-18-crown-6 as ion size selective masking agent., Separation and Purification Technology, Vol.40 No.2, 2004

Moskalyk, R.R., Rare earths: the unseen metals, review. The European Journal of Mineral Processing and Environmental Protection, Vol.3, No.2, 2003

R. Neumann, C.L. Schneider. Prediction of monazite liberation from the silexitic rare earth ore of Catalao I. Minerals Engineering, Vol.14, No.11, 2001

Bruckard, W.J., Heyes, G.W., and Guy, P.J., Flotation and screening recovery of titanium minerals from a monazite mineral sands circuit. AusIMM Proceedings, Vol. 306 No. 1, 2001

J. Ren, S. Song, A. Lopez-Valdivieso, S. Lu. Selective flotation of bastnaesite from monazite in rare earth concentrates using potassium alum as depressant. Int. J. Mineral Processing, Vol.59, No.3, 2000

TW Cheng. The point of zero charge of monazite and xenotime. Minerals Engineering, Vol.13, No.1, 2000