Reduction of leachables from type II anion exchange resins

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Ion-exchange polymer or process of preparing

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521 26, C08F 520

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active

050914243

ABSTRACT:
A process for reducing decomposition products released during use or storage from a strong base, Type II anion exchange resin in the hydroxide form by reacting either the chloride form or the sulfate form of the resin with a bisulfite salt before conversion of the resin to the hydroxide form, and the resin prepared from the process.

REFERENCES:
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patent: 3458439 (1969-07-01), Schmidt
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Chem. Abstracts, p. 336, vol. 88, 1978, item 12378j, Study of Ion-Exchange Equilibrium on ASD-3 and ASD-4, Anion Exchangers in Sodium Sulfite-Sodium Hydrogen Sulfite Solutions, USSR, 1977.
Chem. Abstracts, p. 280, vol. 88, 1978, item 78546u, Purification of Bleach Plant Effluents by Adsorption on Crosslinked Polymers, Sweden, 1977.

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