稀土学报(英文版)
稀土學報(英文版)
희토학보(영문판)
JOURNAL OF RARE EARTHS
2004年
1期
179-182
,共4页
chemical separete%extraction reaction%hydroxyl ion%Cyanex 302%rare earths
The solvent extraction of La3+ from hydrochloric acid solutions was investigated using bis(2, 4, 4-trimethylpentyl) monothiophosphinic acid(Cyanex 302, HL) as an extractant. The effect of equilibrium of aqueous acidity on extraction of La3+ using Cyanex 302 in different diluents was discussed. The effects of extractant concentration and chloride ion on the extraction reaction were also studied. Stoichiometry of the extraction reactions and the nature of metal complexes formed were determined using slope analysis technique and IR measurement.
