摘要
本文研究了水相中加入水溶性溶剂(甲醇、乙醇、丙酮、二氧六圜、乙二醇、二甲基亚砜、二甲基甲酰胺、四氢呋喃等)对TOA萃取硫酸铀酰的影响,其中醇、酮等使铀的分配比提高,DMSO,DMF等使分配比降低。文中通过介电常数、表面张力等性质变化,讨论了极性相组成对萃取的影响。
The effect of organic water-miscible solvents, such as methanol, ethanol, acetone, dioxane, glycol, dimethylsulfoxide(DMSO) ,dimethylformamide(DMF), tetrahydrofurance(THF) in aqueous phase on the extraction of uranyl sulphate by tri-n-octylamine (TOA) has been investigated. All data obtained showed that the addition of alcohols, ketones etc. into aqueous phase brings about an increase of distribution ratio of uranium, whereas the addition of DMSO, DMF etc. brings about a decrease . In the present study, the regularity and mechanism of the extraction with TOA are further studied and discussed from the measurements of some physical properties, such as dielectric constant, interface tension etc..
出处
《核化学与放射化学》
CAS
CSCD
北大核心
1989年第1期21-27,共7页
Journal of Nuclear and Radiochemistry
