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用盐酸对富含镧、铈等稀土离子的织金磷矿石进行酸解,以仲辛基苯氧基取代乙酸、环烷酸以及传统的酸性磷类萃取剂2-乙基己基膦酸单2-乙基己基酯和二-(2-乙基己基)磷酸酯为载体、山梨糖醇酐油酸酯和双烯基丁二酰亚胺作混合表面活性剂、磺化煤油作溶剂、盐酸作内相解析剂制成的乳状液膜来对磷矿酸解浸出液中镧、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、内相酸浓度、水乳比、油内比对提取率的影响。结果表明:载体浓度为12%,混合表面活性剂浓度为8%,内相解析剂浓度为6 mol.L-1,乳水比为1∶10,油内比为1∶1时,稀土提取率可达76.46%。
Hydrochloric acid is used to hydrolyze woven gold phosphate rock rich in rare earth ions such as lanthanum and cerium to substitute acetic acid, naphthenic acid and conventional acid phosphorus extractant with 2-ethylhexylphosphonic acid mono 2-ethylhexyl ester and di- (2-ethylhexyl) phosphate as carrier, sorbitan oleate and dialkoxysuccinimide as a mixed surfactant, sulfonated kerosene as a solvent, hydrochloric acid As the internal phase analyte emulsion film to extract the lanthanum, cerium and other rare earth ions in the phosphate rock acid leaching solution was extracted, the mobile carrier concentration, surfactant type and concentration, internal phase acid concentration, water-milk ratio, Effect of internal oil ratio on extraction rate. The results showed that when the concentration of carrier was 12%, the concentration of mixed surfactant was 8%, the concentration of internal phase resolving agent was 6 mol·L-1, the ratio of milk to water was 1:10 and the internal ratio of oil was 1: 1, Rate up to 76.46%.