中南大学学报（自然科学版）2017，Vol.48Issue(3)：562-569,8.DOI:10.11817/j.issn.1672-7207.2017.03.002
新型三叔胺萃取剂的合成及其萃取性能
Synthesis and extraction performance of novel three-tri-amine extractant
摘要
Abstract
A novel three-tri-amine extractant was firstly synthesized, and its extraction performance was investigated. Two new chemicals of N,N,N′,N″,N″-pentahexyldiethylenetriamine and N,N,N′,N″,N″-pentaoctyldiethylenetriamine were synthesised using diethylenetriamine,1-bromohexane and 1-bromooctane as raw materials, respectively. IR and1H-NMR were employed to characterize the structures of both chemicals. The performance of extraction of molybdenum with N,N,N′,N″,N″-pentahexyldiethylenetriamine, N,N,N′,N″,N″-pentaoctyldiethylenetriamine and N235 were investigated. The performance of stripping of molybdenum with N,N,N′,N″,N″-pentaoctyldiethylenetriamine was researched. The solution of 2 mol/L NaOH was used to strip molybdenum from the loaded organic. The results show that N,N,N′,N″,N″-pentaoctyldiethylenetriamine has better extraction performance than N,N,N′,N″,N″- pentahexyldiethylenetriamine and is similar to N235. The stripping of Mo reaches 97.48% with volume ratioV(O)/V(A) of 2:1 at 25℃ for 5 min in single stage. The mass concentration of molybdenum in strip liquor reaches 55 g/L.关键词
N,N,N′,N″,N″-五烷基二乙烯三胺/钼/溶剂萃取/合成Key words
N/N/N′/N″/N″-pentaalkyldiethylenetriamine/molybdenum/solvent extraction/synthesis分类
矿业与冶金引用本文复制引用
周小舟,曹佐英,肖连生,刘劭钢,张贵清,李青刚,曾理,关文娟,白兰..新型三叔胺萃取剂的合成及其萃取性能[J].中南大学学报（自然科学版）,2017,48(3):562-569,8.基金项目
国家自然科学基金资助项目(51374238) (Project(51374238) supported by the National Natural Science Foundation of China) （51374238）
