Phase equilibria in the water-ethoxylated nonylphenol (neonol AF 9–12)-sodium sulfate system were studied at 25 °C using isothermal titration and isothermal section methods. It was found that neonol AF 9–12 exerts a dehydrating effect on sodium sulfate. The optimum extraction parameters were determined for the studied system: the neonol AF 9–12: Na 2 SO 4 weight ratio is 1:3, and the water weight fraction is 80.0%. The effect of the hydrochloric acid concentration on the distribution of iron( iii ) ions and ions of the indium subgroup elements was investigated, and the distribution of iron( iii ) ions in the presence of organic complexing agents including antipyrine, diantipyrylmethane, and acetylacetone was studied. Conditions for quantitative extraction of thallium( iii ) in the form of tetrachlorothallate ion by neonol AF 9–12 were established. The possibility of concentrating the iron( iii ) in the form of the acetylacetonate complexes was demonstrated.

中文翻译：

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水-乙氧基化壬基酚-硫酸钠体系中的相和萃取平衡

使用等温滴定和等温切片方法在 25 °C 下研究了水-乙氧基化壬基酚（neonol AF 9-12）-硫酸钠系统中的相平衡。发现neonol AF 9-12 对硫酸钠产生脱水作用。确定了研究体系的最佳提取参数：氖醇AF 9-12: Na 2 SO 4 重量比为1:3，水重量分数为80.0%。研究了盐酸浓度对铁( iii ) 离子和铟亚族元素离子分布的影响，并在安替比林、二安替吡喃甲烷和乙酰丙酮等有机络合剂存在下，对铁( iii ) 离子的分布进行了研究。学习了。建立了通过氖醇 AF 9-12 以四氯硫代离子形式定量提取铊 (iii) 的条件。