Y. An et al., PREPARATION OF A CATION-EXCHANGER BASED O N CROSS-LINKED PARTIALLY PHOSPHORYLATED POLY(VINYL ALCOHOL) AND ITS SELECTIVITY FOR CATIONS, Kobunshi ronbunshu, 52(5), 1995, pp. 294-298
A strong acid cation exchange resin was prepared by crosslinking parti
ally phosphorylated poly(vinyl alcohol) with glutaraldehyde. The ion e
xchange capacity of the dry cation exchange resin in hydrogen form is
2.86 meq/g-resin. The rate of ion exchange is rapid and the solution p
asses effectively through the resin column. The equilibrium distributi
on coefficients in the resin for various cations at various pH values
using various hydrochloric acid and ammonium aqueous solutions were me
asured. Ions Fe(III) and Cu(II) or Cr(III) loaded on a column can be c
ompletely separated from each other by elution with 0.1 mol/l HCl.