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Studies of selective adsorption resins. XXV. Preparation of macroreticular chelating resins containing aminomethylphosphonic acid groups from methyl methacrylate/divinylbenzene copolymer beads and their adsorption capacity
Author(s) -
Maeda Hironori,
Egawa Hiroaki
Publication year - 1987
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1987.070330418
Subject(s) - aminomethylphosphonic acid , divinylbenzene , chemistry , chelation , adsorption , copolymer , chelating resin , nuclear chemistry , hydrochloric acid , polymer chemistry , magnesium , inorganic chemistry , elution , metal ions in aqueous solution , organic chemistry , styrene , metal , chromatography , biochemistry , metabolite , polymer
Macroreticular chelating resins containing aminomethylphosphonic acid groups were prepared by reaction of methyl methacrylate/divinylbenzene copolymer beads with triethylenetetramine, followed by the reaction of the products with phosphorous acid and formaline. The adsorption capacities of this resin for Cu 2+ , Pb 2+ , Zn 2+ , Ni 2+ , Co 2+ , Ca 2+ , and Mg 2+ were determined at various pH values. The order of chelate stability for the resin was Cu 2+ > Pb 2+ > Zn 2+ > Ni 2+ > Co 2+ > Ca 2+ > Mg 2+ . Copper, nickel, zinc, calcium, and magnesium ions can be eluted with 1 mol dm −3 hydrochloric acid. The proposed resin appears to be useful for the removal of Ca 2+ and Mg 2+ from salt solution.