• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Separation and Purification Technology >Extraction of the uranyl ion from the aqueous phase into an ionic liquid by diglycolamide
【24h】

Extraction of the uranyl ion from the aqueous phase into an ionic liquid by diglycolamide

机译：二甘醇酰胺将水相中的铀酰离子萃取到离子液体中

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Extraction of the uranyl ion, UO_2~(2+), in an aqueous solution was carried out using N,N,N',N'-tetrabutyl-3-oxapentanediamide (TBDA) and N,N,N' ,N'-dimethylDibutyl-3-oxapentanediamide (MBDA) as extractants in an ionic liquid (IL) of l-alkyl-3-methylimidazolium hexafluorophosphate ([C_nmim][PF6], n = 4,6, and 8). The extraction efficiency for UO_2~(2+) ion in imidazolium-type ILs was found to be higher than that in chloroform under the same conditions. The extraction mechanism was deduced by the slope analysis and extraction tests. The UO_2~(2+) extraction most likely occurs by a mechanism involving a cation-exchange. The conventional log-log plot analysis of the extraction equilibrium data reveals that UO_2~(2+) ion is extracted as cation complexes in a 1:2 ratio of UO_2~(2+) to extractant. These complexes were characterized by their IR spectral data.
机译：使用N，N，N'，N'-四丁基-3-氧杂戊二酰胺（TBDA）和N，N，N'，N'-在水溶液中萃取铀酰离子UO_2〜（2+）在1-烷基-3-甲基咪唑鎓六氟磷酸盐（[C_nmim] [PF6]，n = 4,6和8）的离子液体（IL）中作为萃取剂的二甲基二丁基-3-氧杂戊二酰胺（MBDA）。在相同条件下，咪唑类ILs中UO_2〜（2+）离子的萃取效率高于氯仿。通过斜率分析和提取试验推导了提取机理。 UO_2〜（2+）的萃取最有可能是通过涉及阳离子交换的机制而发生的。萃取平衡数据的常规对数-对数图分析表明，UO_2〜（2+）离子以UO_2〜（2+）与萃取剂的1：2比例作为阳离子配合物被萃取。这些配合物通过其IR光谱数据表征。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号