Separation of Te(IV) and Se(IV) by extraction with Cyanex 925

被引：10
作者：
Mhaske, AA [1 ]
Dhadke, PM [1 ]
机构：
[1] Univ Bombay, Dept Chem Technol, Inorgan Chem Lab, Div Appl Chem, Bombay 400019, Maharashtra, India
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 2003年 / 38卷 / 14期
关键词：
extraction; tellurium(IV); selenium(IV); separation; temperature; Cyanex; 925;
D O I：
10.1081/SS-120023418
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Liquid-liquid extraction of tellurium(IV) and selenium(IV) with Cyanex 925 in toluene from aqueous hydrochloric acid media was studied separately, under the influence of variables such as: hydrochloric acid concentration, reagent concentration, equilibration time, diverse ions, stripping agents, and temperature. The difference in extractability of these metal ions in hydrochloric acid media toward Cyanex 925 facilitates their separation. The temperature dependence of extraction equilibriums were examined by the temperature variation method to estimate apparent thermodynamic function, DeltaH. From the temperature study, the extraction reaction for Te(IV) was found to be exothermic in nature, while that of Se(IV) endothermic.
引用
收藏
页码：3575 / 3589
页数：15
相关论文
共 50 条
  • [1] Application of response surface methodology for modeling and optimization of the extraction and separation of Se(IV) and Te(IV) from nitric acid solution by Cyanex 301 extractant
    Mahmoudiani, Farnaz
    Milani, Saeed Alamdar
    Hormozi, Faramarz
    Yadollahi, Ali
    PROGRESS IN NUCLEAR ENERGY, 2022, 143
  • [2] Liquid-liquid extraction equilibria for Pt(IV)-HCl-Cyanex 921 and Pt(IV)-HCl-Cyanex 925 systems in toluene
    Mhaske, AA
    Dhadke, PM
    JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 2001, 34 (08) : 1052 - 1055
  • [3] Separation of selenium (IV) and tellurium (IV) from nitric acid medium by solvent extraction using CYANEX 301
    Mahmoudiani, F.
    Milani, S. A.
    Hormozi, F.
    Yadollahi, A.
    JOURNAL OF THE IRANIAN CHEMICAL SOCIETY, 2022, 19 (04) : 1539 - 1546
  • [4] Extraction and Separation of Zr(IV) and Hf(IV) from Nitrate Medium by Some CYANEX Extractants
    Nayl, A. A.
    El-Nadi, Y. A.
    Daoud, J. A.
    SEPARATION SCIENCE AND TECHNOLOGY, 2009, 44 (12) : 2956 - 2970
  • [5] A synergistic extraction strategy by Cyanex572 and Cyanex923 for Th(IV) separation
    Ma, Li
    Zhao, Zeyuan
    Dong, Yamin
    Sun, Xiaoqi
    SEPARATION AND PURIFICATION TECHNOLOGY, 2018, 191 : 307 - 313
  • [6] Separation of selenium (IV) and tellurium (IV) from nitric acid medium by solvent extraction using CYANEX 301
    F. Mahmoudiani
    S. A. Milani
    F. Hormozi
    A. Yadollahi
    Journal of the Iranian Chemical Society, 2022, 19 : 1539 - 1546
  • [7] Extraction and separation of platinum(IV), and palladium(II) with CYANEX 923 in chloride media - A possible recovery from spent autocatalysts
    Chavan, DV
    Dhadke, PM
    JOURNAL OF SCIENTIFIC & INDUSTRIAL RESEARCH, 2003, 62 (08): : 834 - 837
  • [8] Liquid-liquid extraction and separation of rhodium(III) from other platinum group metals with Cyanex 925
    Mhaske, A
    Dhadke, P
    SEPARATION SCIENCE AND TECHNOLOGY, 2001, 36 (14) : 3253 - 3265
  • [9] Separation of iridium(IV) and rhodium(III) from hydrochloric acid solution by solvent extraction with Cyanex 921
    Le, Minh Nhan
    Lee, Man Seung
    GEOSYSTEM ENGINEERING, 2018, 21 (04) : 210 - 216
  • [10] Extraction of gallium(III) from hydrochloric acid by Cyanex 923 and Cyanex 925
    Ahmed, I. M.
    El-Nadi, Y. A.
    El-Hefny, N. E.
    HYDROMETALLURGY, 2013, 131 : 24 - 28
12345