伯胺N_(1923)从硫酸溶液中萃取Sc(Ⅲ)的机理

EXTRACTION MECHANISM OF Sc(III) FROM SUL- PHURIC ACID SOLUTION BY PRIMARY AMINE N_(1923)

摘要: 本文研究了伯胺N_(1923)的正辛烷溶液从硫酸介质中萃取Sc(Ⅲ)的平衡规律。通过IR,NMR测定及斜率法、等摩尔系列法研究了N_(1923)萃取Sc(Ⅲ)的机理。测定并计算了萃取反应的浓度平衡常数和热力学函数。

Abstract: The extraction mechanism of Sc(III) from sulphuric acid solution by primary amine N1923(RNH2) has been investigated by means of slope, isomolar continuous variation and saturation methods. The reaction is as follows:The effect of temperature on the extraction of Sc(III) is observed. The extraction equilibrium constant and thermodynamic functions(△H,△S and △G)are obtained. The IR and NMR of extracted compound are measured.