Sorption of elements from mineral acid solutions by alkylated dibenzocrown ethers |
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| Authors: | V V Yakshin O M Vilkova N A Tsarenko A Yu Tsivadze |
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| Institution: | 1. A. Yu. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31 Leninsky prosp., 119991, Moscow, Russian Federation
2. Scientific Research Institute of Chemical Technology, 33 Kashirskoe shosse, 115409, Moscow, Russian Federation
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| Abstract: | Sorption of various elements by alkylated dibenzocrown ethers (CE) from HCl and HNO3 solutions was studied. The distribution coefficients of elements depend on the size of the macrocyclic ring of CE and the type and concentration of the acid. Di-tert-butyldibenzo-24-crown-8 possesses optimal properties upon sorption of Au, Ga, Fe, Mo, Sb, Sn, and Re from 5 M HCl. In these cases, the elements are selectively sorbed from mixtures of complex composition, which can be used to develop methods of recovery and separation of elements. |
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