The separation of selenium from tellurium in hydrochloric acid media by solvent extraction with tri-butyl phosphate

Hoh, Ying‐Chu; Chang, Chih-Chien; Wei-li, Cheng; Shaw, I-Sine

doi:10.1016/0304-386x(83)90032-4

Cited by 20 publications

(2 citation statements)

References 7 publications

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“…Recently, Gupta and Moats reported the extraction of selenium using DBC [26]. The extraction of selenium using tributyl phosphate was also studied [27]. However, studies of selenium extraction in acidic chloride media are still limited.…”

Section: Rate Of As(iii) Extraction and Back Extraction Using Cpmementioning

confidence: 99%

Extraction Behavior of Arsenic, Selenium, and Antimony Using Cyclopentyl Methyl Ether from Acidic Chloride Media

Matsuo

Oshima

Ohe

et al. 2019

SERDJ

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Solvent extraction is one of the efficient separation techniques for the removal of toxic chemical species from aqueous media, as well as their enrichment for microanalysis. In this study, extraction of the toxic elements, arsenic, selenium, and antimony from acidic chloride media using the oxygen-containing compounds cyclopentyl methyl ether (CPME), dibutyl carbitol (DBC), and methyl isobutyl ketone (MIBK) was compared. Extraction of As(III) increases with increasing hydrochloric acid concentration and the extractability using CPME, DBC, and MIBK was similar. On the other hand, As(V) was not extracted at all using these extractants. Sb(V) and Se(VI) were extracted at high hydrochloric acid concentration. The order of extractability for Se(IV) in acidic chloride media was MIBK > DBC > CPME. The extraction of As(III) using CPME was examined under various conditions. As As(III) was extracted only at high hydrochloric acid concentration, arsenic trichloride (AsCl 3) was suggested as the extracting species. CPME was not saturated with As(III) under the extraction conditions used in this study. As(III) can be enriched by the combination of extraction using CPME followed by back extraction using a small volume of distilled water.

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Section: Rate Of As(iii) Extraction and Back Extraction Using Cpmementioning

confidence: 99%

Extraction Behavior of Arsenic, Selenium, and Antimony Using Cyclopentyl Methyl Ether from Acidic Chloride Media

Matsuo

Oshima

Ohe

et al. 2019

SERDJ

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“…Tri- n -butyl phosphate (TBP) has been successfully used for solvent extraction of Se( iv ) from HCl solution. 8–10 Interestingly, Chowdhury and Sanyal 9 reported that the dominant complex extracted changes depending on the concentration of the HCl solution, with SeOCl 2 (TBP) 2 being extracted from 3 to 6 M HCl and H 2 SeOCl 4 (TBP) 2 being extracted from 6 to 10 M HCl. A TBP analog, tri- iso -butyl phosphate, has also been shown to extract Se( iv ) from chloride aqueous solution at around pH 8.5.…”

Section: Introductionmentioning

confidence: 99%

Extraction of Se(iv) and Se(vi) from aqueous HCl solution by using a diamide-containing tertiary amine

et al. 2023

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The Chemical Reactions of Tributyl Phosphate in the Solvent Extraction of Metals

Liddell

Bautista

1984

Hydrometallurgical Process Fundamentals

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The separation of selenium from tellurium in hydrochloric acid media by solvent extraction with tri-butyl phosphate

Cited by 20 publications

References 7 publications

Extraction Behavior of Arsenic, Selenium, and Antimony Using Cyclopentyl Methyl Ether from Acidic Chloride Media

Extraction Behavior of Arsenic, Selenium, and Antimony Using Cyclopentyl Methyl Ether from Acidic Chloride Media

Extraction of Se(iv) and Se(vi) from aqueous HCl solution by using a diamide-containing tertiary amine

The Chemical Reactions of Tributyl Phosphate in the Solvent Extraction of Metals

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