Disinfecting resin
OwnerMoshe A. Frommer, Israel Dalveninventors
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Abstract
A polyhalide bactericidal resin, of the demand type, based on halogens, the preponderant being iodine. The release of iodine into the water which is purified is minimized, and contaminated water is rendered safe for human consumption. There are also provided devices for the decontamination of contaminated water, based on the use of the novel resins of the invention. Furthermore there is provided a process for the production of such resins based on the interaction of a strong base anion exchange resin, iodine, an iodine, a bromide and a persulfate oxidizing agent.
Claims6
A process for the production of a bactericidal resin, which comprises:
- contacting a Styrene-DVB based strong base granular anion exchange resin of total capacity of at least 1.0 equivalent/liter with a mixture prepared from elemental iodine, a soluble iodide, a soluble bromide, water and a peroxymonosulfate oxidant, wherein the iodine to iodide mole ratio is more than 1 to 1 and the iodide to bromide mole ratio is at least 1.5 to 1 and the oxidant is sufficient to convert more than half the bromide to bromine,
- agitating for a certain period of time, followed by a reaction period, and
- rinsing.
Dependencies are inferred from the claim text.