ABSTRACT
For the quantitative separation of Aluminum (Al) by ion exchange both anionic and cationic resins can be used with about equal effectiveness. Separation methods utilizing strongly basic anion exchange resins are mainly based on the nonadsorbability of Al from hydrochloric acid (HCl) media. On cation exchange resins of the sulfonic acid type selective separations of Al from some accompanying elements can be achieved in the presence of organic solvents or complexing agents. Chelating resins have found only limited application for separations involving Al. Al is not adsorbed on anion exchange resins, at any concentration of HCl. No adsorption of Al on anionic resins of the quaternary ammonium type is observed in media containing nitric or sulfuric acids. In hydrobromic and perchloric acid systems Al is not adsorbed on basic resins.
