Conclusions
-- A method has been developed for preparing a fibrous sulfonated cation exchange resin based on partially hydrolyzed polyacrylonitrile fibres by the method of graft copolymerization with styrene sulfonates of the alkaline metals.
-- An estimate of the functional groups in the sulfonated cation exchange resin has been made by the method of potentiometric titration. Apparent ionization constants have been calculated.
-- The sorptive activity of cation exchange fibres with respect to trivalent chromium ions has been investigated on model solutions which imitate manufacturing process solutions. The sorptive capacity of the PAN-TgrPSSNA cation exchange resin with respect to the Cr3+ cation proved to be equal to 2.0 mmole/g.
The process of regenerating the ion exchange resin has been studied. The degree of desorption of chromium is 96%.
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Translated from Khimicheskie Volokna, No. 3, pp. 51–53, May–June, 1990.
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Nemilova, T.V., Prisekina, O.V., Emets, L.V. et al. A fibrous sulfonated cation exchange resin for purifying waste-water from electroplating from chromium (III) ions. Fibre Chem 22, 200–203 (1990). https://doi.org/10.1007/BF00548346
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DOI: https://doi.org/10.1007/BF00548346