Abstract
Macroporous crosslinked polyacrylonitrile beads were prepared by suspension copolymerization. Heating with oligo-amines converted the beads to weak base ion exchange resins. Capacities up to 7.6 meq/g were obtained with diethylenetriamine. The resins are resistant to attack by acidic or alkaline chromate solutions. They are selective for Cr(VI) over sulfate and chloride, although less so than commercial strong base resins. Because of their stability and ready regeneration with alkali they are well suited to recovery of chromate from industrial wastewaters.
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© 1992 United Kingdom Atomic Energy Authority
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Eldridge, R.J., Vickers, S. (1992). Preparation and Chromate Selectivity of Weakly Basic Ion Exchangers Based on Macroporous Polyacrylonitrile. In: Slater, M.J. (eds) Ion Exchange Advances. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-2864-3_4
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DOI: https://doi.org/10.1007/978-94-011-2864-3_4
Publisher Name: Springer, Dordrecht
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