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用浓盐酸溶解富含镧、铈等稀土离子的织金磷矿,得到含稀土离子的磷矿浸出液,以P204为载体、Span80或T154作表面活性剂、磺化煤油作溶剂、盐酸作内水相解析剂制成的乳状液膜对酸解液中镧、铈等稀土离子进行提取,考察了流动载体浓度、表面活性剂种类及浓度对稀土提取率的影响及磷矿浸出液中不同浓度稀土离子在不同酸度下的分离提取情况.结果表明,液膜中最佳载体浓度为12%(φ),最佳表面活性剂浓度为4%(φ),随外水相pH值增大,液膜对稀土离子的提取率提高,外水相稀土离子浓度为100mg/L,pH=1时,其提取率可达79.93%.
Concentrated hydrochloric acid is used to dissolve weaving phosphate rock rich in rare earth ions such as lanthanum and cerium to obtain phosphate ore leachate containing rare earth ions. P204 is used as carrier, Span80 or T154 is used as surfactant, sulfonated kerosene is used as solvent and hydrochloric acid is used as internal water Phase analytic agent emulsion film on the acid solution of lanthanum, cerium and other rare earth ions were extracted, the effect of mobile carrier concentration, surfactant type and concentration on the extraction rate of rare earth phosphate rock leachate different concentrations of rare earth ions The results showed that the optimum carrier concentration in liquid film was 12% (φ) and the optimum surfactant concentration was 4% (φ). With the increase of pH in the external aqueous phase, The extraction rate of rare earth ions increased, the external aqueous rare earth ion concentration of 100mg / L, pH = 1, the extraction rate of up to 79.93%.