Sorption of zirconium out of sulfate solutions by polyampholytes

摘要

The article considers and discusses the calculated and experimental data on sorption of zirconium ions out of sulfate solutions by aminocarboxyl and aminophosphate ampholytes. Based on the calculated data, zirconium in sulfate solutions is shown to form a whole series of complex ions (sulfate, hydroxo- and mixed hydroxo-sulfate ones). Equilibrium of zirconium ions during their sorption out of sulfate solutions has been studied. Behavior of zirconium ions during their sorption out of sulfuric acid solutions in a wide range of its concentration is explained in the view of ionic state of the metal in the solution, structure, and functional features of ionites. The conclusions made as to the chemistry of sorption have been proved by the data of IR studies.