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Extraction and stripping behavior of hydrochloric acid from aqueous solution by Cyanex 923/TEHA and its mixtures
Solvent extraction of HCl from aqueous solution has been investigated by Cyanex 923/TEHA and its mixtures. TEHA showed better performance than Cyanex 923 for the extraction of HCl. The mixture of Cyanex 923/TEHA with amines/neutral extractants had a negligible effect on both extraction and stripping of HCl. Addition of sodium salts such as NaCl, NaNO3, and Na2SO4 to the aqueous solution improved the extraction efficiency of HCl by Cyanex 923/TEHA through the salting out effect. However, it was difficult to strip HCl from the loaded Cyanex 923/TEHA by distilled water. Complete stripping of HCl from the loaded organic phase was carried out by employing a low concentration of ammonia solution.
Extraction and stripping behavior of hydrochloric acid from aqueous solution by Cyanex 923/TEHA and its mixtures
Solvent extraction of HCl from aqueous solution has been investigated by Cyanex 923/TEHA and its mixtures. TEHA showed better performance than Cyanex 923 for the extraction of HCl. The mixture of Cyanex 923/TEHA with amines/neutral extractants had a negligible effect on both extraction and stripping of HCl. Addition of sodium salts such as NaCl, NaNO3, and Na2SO4 to the aqueous solution improved the extraction efficiency of HCl by Cyanex 923/TEHA through the salting out effect. However, it was difficult to strip HCl from the loaded Cyanex 923/TEHA by distilled water. Complete stripping of HCl from the loaded organic phase was carried out by employing a low concentration of ammonia solution.
Extraction and stripping behavior of hydrochloric acid from aqueous solution by Cyanex 923/TEHA and its mixtures
Le, Minh Nhan (author) / Nguyen, Thi Hong (author) / Lee, Man Seung (author)
Geosystem Engineering ; 22 ; 129-137
2019-05-04
9 pages
Article (Journal)
Electronic Resource
English
Solvent extraction , HCl , Cyanex 923 , TEHA , stripping
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