Adsorption of metal ions on polyaminated highly porous chitosan chelating resin

Journal Article · Mon Feb 01 04:00:00 EST 1993 · Industrial and Engineering Chemistry Research; (United States)

DOI:https://doi.org/10.1021/ie00014a015· OSTI ID:6760637

Kawamura, Yoshihide; Mitsuhashi, Masaki; Tanibe, Hiroaki ^[1]; Yoshida, Hiroyuki ^[2]

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1. Fuji spinning Co., Ltd., Shizuoka (Japan)
2. Univ. of Osaka Prefecture, Sakai (Japan)

Highly porous chelating resin was fabricated from the natural polysaccharide chitosan. The adsorption capacity was increased by polyamination with poly(ethylene imine) (MW = 10,000). The capacity was about 1-2 times larger than that of commercial chelate resins. The selectivity for adsorption of metal ions on the resin, which was determined for a single solute at pH [approx equal] 7, was Hg(II) > UO[sub 2](II) > Cd(II) > Zn(II) > Cu(II) > Ni(II). Mg(II), Ca(II), Ga(III), As(III), and Sr(II) were not adsorbed on the resin at all. The selectivity depended on the pH of each metal solution. The equilibrium isotherms for adsorption of HgCl[sub 2] were correlated by the Langmuir equation. The saturation capacities were close to the concentration of amino group fixed on the resin. When HCl or NaCl coexisted in HgCl[sub 2] solution and their concentrations were lower than 100 mol/m[sup 3], the saturation capacity of HgCl[sub 2] was little affected by them. When 500 mol/m[sup 3] H[sub 2]SO[sub 4] coexisted in HgCl[sub 2] solution, extremely low pH inhibited the adsorption of Hg(II) at all.

• OSTI ID: 6760637
• Journal Information: Industrial and Engineering Chemistry Research; (United States), Journal Name: Industrial and Engineering Chemistry Research; (United States) Vol. 32:2; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

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ACTINIDES
ADSORPTION
ADSORPTION ISOTHERMS
ALKALINE EARTH METALS
AMINATION
AMINES
ARSENIC
CADMIUM
CALCIUM
CARBOHYDRATES
CHELATING AGENTS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CHITIN
COPPER
ELEMENTS
FABRICATION
GALLIUM
ISOTHERMS
MAGNESIUM
MERCURY
METALS
MUCOPOLYSACCHARIDES
NICKEL
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PH VALUE
POLYMERS
POLYSACCHARIDES
RESINS
SACCHARIDES
SEMIMETALS
SORPTION
SORPTIVE PROPERTIES
STRONTIUM
SURFACE PROPERTIES
SYNTHESIS
TRANSITION ELEMENTS
URANIUM
ZINC