Sorption of rhenium on synthetic cyclohexylamine anion exchange resin LSC‐436.

A new organic synthetic anion exchange resin (LSC‐436) containing cyclohexylamine group was prepared for the sorption of rhenium. The traditional batch tests were applied to investigate the mechanism of sorption for rhenium on LSC‐436 with respect to contact time, initial rhenium concentration, the value of pH and the amount of resin. The experimental data obtained from batch tests were modeled using the Langmuir/Freundlich isotherms and pseudo‐first‐kinetic and pseudo‐second‐kinetic models to obtain key dynamic parameters for investigating the mechanism of sorption of rhenium. The LSC‐436 resin was characterized using scanning electron microscopy (SEM‐EDS), Fourier transform infrared spectroscopy (FTIR) and X‐ray photoelectron spectroscopy (XPS) techniques to further study the sorption mechanism. [ABSTRACT FROM AUTHOR]