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

页码：3575 / 3589

页数：15

共 50 条

[21] Hafnium/zirconium separation using Cyanex 925
Da Silva, A
El-Ammouri, E
Distin, PA
CANADIAN METALLURGICAL QUARTERLY, 2000, 39 (01) : 37 - 42
[22] CHROMATOGRAPHIC-SEPARATION OF TE(IV) AND TE(VI)
SUBBAIYAN, M
JANARDHAN, PB
INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY, 1977, 15 (05): : 443 - 445
[23] DETERMINATION OF BROMIDE, HYPOPHOSPHITE, PHOSPHITE, AS(III), SE(IV) AND TE(IV) BY PERIODATE
KAUSHIK, RL
VERMANI, OP
PROSAD, R
INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY, 1977, 15 (10): : 933 - 944
[24] Liquid-liquid extraction of tin (IV) with Cyanex 302
Sarkar, SG
Dhadke, PM
INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY, 2002, 41 (05): : 996 - 998
[25] 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
[26] Extraction mechanism of cerium(IV) and fluorine(I) in the separation process of bastnasite leach solution by Cyanex 923
Liao, W.P.
Yu, G.H.
Li, D.Q.
Acta Metallurgica Sinica (English Letters), 2001, 14 (01) : 21 - 26
[27] Extraction of arsenic(III) and arsenic(V) with Cyanex 925, Cyanex 301 and their mixtures
Iberhan, L
Wisniewski, M
HYDROMETALLURGY, 2002, 63 (01) : 23 - 30
[28] ANION-EXCHANGE SEPARATION OF TE(IV) FROM TE(VI), SE(IV) AND SE(VI) ON DEAE-CELLULOSE IN MIXED HYDROCHLORIC-ACETIC ACID-MEDIA
KURODA, R
YOSHIKUNI, N
TALANTA, 1975, 22 (01) : 81 - 84
[29] 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
[30] Extraction of arsenic from sulphuric acid solution with cyanex 925 and cyanex 301
Iberhan, L.
Wisniewski, M.
Prace Naukowe Instytutu Technologii Nieorganicznej i Nawozow Mineralnych Poliutechniki Wroclawskiej, 2000, (48): : 182 - 185

← 1 2 3 4 5 →