Column separation of divalent metals from sulfate solutions using impregnated resins containing di(2-ethylhexyl)phosphoric acid

Chiral separation of amino-alcohols using extractant impregnated resins

“…It is evident that the breakthrough curve for R enantiomer is not so sharp as the one of the S enantiomer (it is more gentle). This means that under the same conditions, EIR has a stronger affinity towards R-phenylglycinol [40,41]. This agrees with the results of liquid-liquid and sorption equilibrium experiments (Figs.…”

Extractant impregnated resins for the recovery of aldehydes and chiral resolution

“…It is evident that the breakthrough curve for R enantiomer is not so sharp as the one of the S enantiomer (it is more gentle). This means that under the same conditions EIR has a stronger affinity towards R-phenylglycinol [40,41]. This agrees with the results of liquid-liquid and sorption equilibrium experiments (Figures 6.5 and 6.6).…”

Selective iron sorption for on-line reclaim of chromate electroplating solution at highly acidic condition

“…S957 was first pretreated in 4 M HCl solution of methanol-water mixed solvent for 12 h to remove some possible impurities [23], then immersed in distilled-deionized water for 12 h and at last dried.…”