Citation: Y. Nagaosa et Bh. Yao, RECOVERY AND SEPARATION OF LANTHANUM(III), ALUMINUM(III), COBALT(II),AND NICKEL(II) FROM MISCH METAL BY SOLVENT-EXTRACTION USING BIS(2-ETHYLHEXYL)PHOSPHINIC ACID, Separation science and technology, 32(6), 1997, pp. 1053-1065