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国家自然科学基金(21171069)

作品数:6 被引量:3H指数:1
相关作者:孙国新崔玉李业新杨小凤张辽宁更多>>
相关机构:济南大学更多>>
发文基金:国家自然科学基金更多>>
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6 条 记 录,以下是 1-6
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以正辛烷为稀释剂用不对称N-甲基-N-癸基烷基酰胺从硝酸中萃取U(Ⅵ)
2016年
高放废液中铀的提取具有重要意义。本文设计合成了系列结构相关的氮原子上具有甲基的不对称萃取剂,N-甲基-N-癸基辛酰胺(MDOA)、N-甲基-N-癸基癸酰胺(MDDA)和N-甲基-N-癸基月桂酰胺(MDDOA),详细研究了以正辛烷为稀释剂从硝酸介质中萃取U(Ⅵ)的热力学,考察了不同影响因素对萃取性能的影响,讨论了萃取剂结构与萃取性能的关系。
崔玉李业新杨小凤杨红晓陈国柱孙国新
关键词:萃取烷基酰胺正辛烷
磺化煤油为稀释剂N,N,N′,N′-四(2-乙基己基)-3-氧戊二酰胺从硝酸中萃取U(Ⅵ)(英文)被引量:1
2016年
本文研究了以磺化煤油为稀释剂,N,N,N′,N′-四(2-乙基己基)-3-氧戊二酰胺(T2EHDGA)从硝酸中对U(Ⅵ)的萃取性能。考察了HNO_3浓度、T2EHDGA浓度、盐析剂浓度及温度对萃取性能的影响。该萃取过程为一放热过程,在所研究的条件下没有三相的形成。给出了萃取机理,确定由2个萃取剂分子参与U(Ⅵ)配位,其萃合物组成为UO_2(NO_3)_2·2T2EHDGA。通过红外光谱确定了由羰基及醚氧键参与配位。
蔡绪灿崔玉杨小凤李业新孙国新
关键词:萃取
Extraction study of rare earth elements with N,N'-dibutyl–N,N'-di(1-methylheptyl)-diglycolamide from hydrochloric acid被引量:1
2016年
A novel,unsymmetrical diglycolamide,N,N'-dibutyl-N,N'-di(1-methylheptyl)-diglycolamide(DBD1MHDGA),was synthesized.The extraction of rare earth elements(REEs) from a hydrochloric acid medium with DBD1 MHDGA was investigated.The results of the extraction experiments indicated that the distribution ratios of RE(Ⅲ) ions increase with an increase in HC1 concentration,atomic number,and extractant concentration.The calculated thermodynamic data show that the extraction process is an exothermic reaction.The organic phase loaded rare earth ions were characterized by infrared spectroscopy.The composition of the extracted complex was determined.
Guo-Jing SunJin-Hong YangHong-Xiao YangGuo-Xin SunYu Cui
关键词:盐酸介质庚基红外光谱表征
Synthesis of N,N'-dimethyl-N,N'-didecyl-3-oxa-diglycolamide for extraction of lanthanides被引量:1
2014年
A novel extractant,N,N'-dimethyl-N,N'-didecyl-3-oxa-diglycolamide(DMDDDGA),was designed and synthesized for extraction of lanthanides in the nuclear fuel reprocessing.The extraction behaviors of Gd,Dy,Er and Ho from nitric acid solution were investigated using DMDDDGA in chloroform.The effects of nitric acid concentration,extractant concentration,and temperature on the extraction were investigated.The distribution ratio of lanthanides increases with concentrations of the extractant and nitric acid,but decreases with increasing temperature,which indicates that the extraction process is exothermic.FT-IR spectra indicated that the C=0 in DMDDDGA is coordinated with metal ion in the extracted species and the stoichiometries of lanthanides(Ⅲ)complex are Gd(NO_3)_3·3DMDDDGA,Dy(NO_3)_3·4DMDDDGA,Er(NO_3)_3·4DMDDDGA,and Ho(NO_3)_3·4DMDDDGA.
张辽宁王亚群孙国新周鹤方党庆毅崔玉
关键词:核燃料后处理
Solvent extraction of U(Ⅵ) by N,N-dimethyl-N',N'-dioctylsuccinylamide and N,N-dimethyl-N',N'-didecylsuccinylamide in cyclohexane
2016年
The extraction of uranyl nitrate by novel extractants of N,N-dimethyl-N',N'-dioctylsuccinylamide(DMDOSA)and N,N-dimethyl-N',N'-didecylsuccinylamide(DMDDSA) from aqueous nitric/nitrate solutions was investigated.It was found both the concentration of HNO_3 and extractants had an effect on the U(Ⅵ) extraction distribution.The extraction mechanism was established,and stoichiometry of the main extracted species was confirmed to be UO_2(NO_3)_2·2DMDOSA and UO_2(NO_3)_2·2DMDDSA,respectively.Both of the extraction reactions are exothermic.FTIR spectral study of the U(Ⅵ) extracted species was also made.
Yu CuiXiao-Feng YangCheng YangYe-Xin LiGuo-Zhu ChenGuo-Xin Sun
关键词:FTIR光谱硝酸铀酰
5-溴-7-溴甲基-1-氢吲哚-2,3-二酮的合成被引量:1
2013年
以邻甲基苯胺为原料,经分子内重排和自由基引发反应,合成医药中间体5-溴-7-溴甲基-1-氢吲哚-2,3-二酮。利用高效液相色谱、IR和1H-NMR等对产品进行表征,结果显示,经重结晶和柱层析分离提纯的产品,产率达到60%。
赵学朋张辽宁孙国新
关键词:邻甲基苯胺自由基反应
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