Fibrous aminocarboxylic ion exchangers FIBAN K-6 and K-6M for purification of water from heavy metal ions
Abstract
A new one-stage method has been developed for the production of aminocarboxyl ion exchanger FIBAN K-6 based on polyacrylonitrile fibre using inexpensive and accessible reagents. The new aminocarboxyl ion exchanger FIBAN K-6M with controlled swelling in water was obtained from the fibrous ion exchanger FIBAN K-6. The sorption properties of FIBAN K-6 and K-6M fibres from multicomponent solutions were studied. The advantages of these ion exchangers are shown not only in comparison with other aminocarboxyl ion exchangers FIBAN K-3 and K-5, but also with the best sorbents of heavy metal ions FIBAN X-1 and X-2 with iminodiacetate groups. It has been established that the mechanical properties of the fibrous cation exchanger FIBAN K-6M allow to process it into non-woven material or yarn with high yield and use it in the form of cartridges in water purification filters.
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References
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