Selective ion exchange polymers

Warshawsky, Abraham

doi:10.1002/apmc.1982.051090112

Cited by 59 publications

(14 citation statements)

References 69 publications

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“…A review of selective ion exchange resins has been compiled by Warshawsky [54]. A diaminotetratacetic polymer developed by Mitsubishi [55] was developed for the purification of amino acid feed solutions.…”

Section: Functional Groupsmentioning

confidence: 99%

Chromatography

Dechow¹

2014

Fermentation and Biochemical Engineering Handbook

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Section: Functional Groupsmentioning

confidence: 99%

Chromatography

Dechow¹

2014

Fermentation and Biochemical Engineering Handbook

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“…The development of high‐performance adsorbents for removing heavy metal ions from wastewater is considered a research priority in the environmental field1–20.…”

Section: Introductionmentioning

confidence: 99%

Resins containing amino and carboxylic acid groups. Synthesis, characterization, and metal ion retention properties

Rivas¹,

Villegas²

2005

J of Applied Polymer Sci

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ABSTRACT:The crosslinked poly [3-(methacryloylamino)propyl]dimethyl(3-sulfopropyl)ammonium hydroxide], P(MAPDSA), and poly [3-(methacryloylamino)propyl]dimethyl(3-sulfopropyl)ammonium hydroxide-co-acrylic acid], P(MAPDSA-co-AA), were synthesized by radical polymerization. The resins were completely insoluble in water. Due to the lower metal ion retention of P(MAPDSA), the metal ions investigated under competitive and noncompetitive conditions for Cu(II), Cd(II), Hg(II), Zn(II), Pb(II), and Cr(III) ions by batch and column equilibrium procedures were carried out only for P(MAPDA-co-AA), particularly for Hg(II). The resin-Hg(II) ion equilibrium was achieved before 15 min. The resin showed a maximum retention capacity value for Hg(II) at pH 2 of 1.89 meq/g. The resin showed a high selectivity to Hg(II) ions. The recovery of the resin was investigated at 25°C with different concentrations of HNO 3 and HClO 4 .

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“…Industrial plants are likely to discharge a lot of pollutants in the soil, rivers, and ground waters because of their wastewaters. Among these pollutants, heavy metals are very toxic, even at low concentrations, because of their possible storage in the food chain 1–13. Metal ions are nonbiodegradable in nature, and their intake at a certain level is toxic 14.…”

Section: Introductionmentioning

confidence: 99%

Trace metal ion retention properties of crosslinked poly(4‐vinylpyridine) and poly(acrylic acid)

Rivas

Quilodrán²,

Quiroz

2004

J of Applied Polymer Sci

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ABSTRACT:The crosslinked resins poly(4-vinylpiridine) (PVPy) and poly(acrylic acid) (PAA) were obtained by radical polymerization. PVPy shows monodentate ligands and PAA at basic pH is basically as acrylate anion, which can contain end-carboxylates groups or form a bridge acting as mono-or bidentate ligands. The retention properties for trace metal ions from saline aqueous solutions and natural seawaters of these two resins were investigated by Batch equilibrium procedure. The metal ions studied were Cu(II), Pb(II), Cd(II), and Ni(II). The following effects were studied: pH, contact time, amount of the adsorbent, temperature, and salinity. The resin PVPy showed a high affinity for Cd (II) and PAA for Cu(II) and Cd(II). The metal ions were determined in the filtrate by atomic absorption spectrometry. By the treatment of the loaded resin with 4M HNO 3 , it was possible to remove completely the Cu(II) ions. The retention properties of the resins were studied for trace metal ions present in the natural seawaters. Both resins showed a high affinity for Cd(II) when the natural seawater contained Cu(II) and Cd(II).

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Selective ion exchange polymers

Cited by 59 publications

References 69 publications

Chromatography

Chromatography

Resins containing amino and carboxylic acid groups. Synthesis, characterization, and metal ion retention properties

Trace metal ion retention properties of crosslinked poly(4‐vinylpyridine) and poly(acrylic acid)

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