摘要
研究了在非有机溶剂萃取过程中 ,温度对小分子显色剂FPNS [3- (对甲酰基苯偶氮 ) - 4 ,5 -二羟基- 2 ,7-萘二磺酸 ]的萃取率E的影响 ,发现其萃取方式符合聚氧乙烯型非离子表面活性剂的增溶理论 ;由分配系数lgD与 1 T线性关系 ,直线的斜率可得△H0—,由热力学关系式可计算出△G0— 和△S0—,用所得热力学函数值对不同金属离子的萃取结果进行了分析。
Effects of temperature on extraction rate of small molecule developer FPNS was investigated in extraction of nonorganic solution. The extraction coincides with solubilizing theory of polyethylene oxide nonionic surfactant. The △H~(D0? ?of extraction reactions are calculated from the slope of lgD and 1/T straight lines and the △G~(D0? ?and △S~(D0? ? of extraction reactions also are calculated using thermodynamic relations. The extraction results of different metal ions had been analysised using thermodynamic functions obtained in this paper.
出处
《上饶师范学院学报》
2004年第3期48-50,共3页
Journal of Shangrao Normal University
