Solvent extraction of HCl from aqueoussolution has been investigated by Cyanex923/TEHA and its mixtures. TEHA showed better performance than Cyanex923 for the extraction of HCl. The mixture of Cyanex923/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 aqueoussolutionimproved the extraction efficiency of HCl by Cyanex923/TEHA through the salting out effect. However, it was difficult to strip HCl from the loaded Cyanex923/TEHA by distilled water. Complete stripping of HCl from the loaded organic phase was carried out by employing a low concentration of ammonia solution.
Tạp chí khoa học Trường Đại học Cần Thơ
Lầu 4, Nhà Điều Hành, Khu II, đường 3/2, P. Xuân Khánh, Q. Ninh Kiều, TP. Cần Thơ
Điện thoại: (0292) 3 872 157; Email: tapchidhct@ctu.edu.vn
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