...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Hydrometallurgy >Description of partition equilibria for uranyl nitrate, nitric acid and water extracted by tributyl phosphate in dodecane
【24h】

Description of partition equilibria for uranyl nitrate, nitric acid and water extracted by tributyl phosphate in dodecane

机译：磷酸三丁酯在十二烷中提取的硝酸铀酰，硝酸和水的分配平衡的描述

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

Experiments were carried out on the partitioning of uranyl nitrate in nitric acid solution extracted by 30 vol.% of tributyl phosphate (TBP) in dodecane at 25 °C. The model proposed by Naganawa and Tachimori (Bull. Chem, Soc. Jap. 70, 809, (1997)) for the case of aqueous solutions of nitric acid was used to additionally describe the extraction equilibria of uranyl nitrate. The treatment is based on the assumption of thermodynamic ideality for the organic solution composed of the diluent, the free extractant and the complexes. The stoichiometries of the metal complexes were determined one by one by a suitable procedure. The formation of 6 different complexes involving uranyl nitrate was found capable of representing the partition equilibria for the three extracted compounds: nitric acid, water and uranyl nitrate. This approach suggests the formation of 2:1 and 3:1 complexes for TBP and uranyl nitrate, respectively.
机译：实验是在25°C下用30％（体积）的磷酸三丁酯（TBP）在十二烷中提取的硝酸溶液中分配硝酸铀酰。 Naganawa和Tachimori提出的模型（Bull.Chem，Soc.Jap.70，809，（1997））用于硝酸水溶液的情况，另外描述了硝酸铀酰的萃取平衡。该处理基于对由稀释剂，游离萃取剂和络合物组成的有机溶液的热力学理想性的假设。通过合适的方法一一确定金属络合物的化学计量。发现形成了6种不同的涉及硝酸铀酰的复合物，能够代表三种提取化合物（硝酸，水和硝酸铀酰）的分配平衡。该方法表明分别为TBP和硝酸铀酰形成2：1和3：1的复合物。

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