Perchlorate removal from concentrated salt solutions using amphoteric ion-exchange resins
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United States of America Patent
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Nov 11, 2014
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Dec 17, 2008
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Dec 17, 2008
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A process for reducing the concentration of perchlorate in an aqueous concentrated multi-component salt solution comprising treating the salt solution with an amphoteric ion-exchange resin to provide an adsorbed perchlorate and multi anion-containing resin and a perchlorate depleted solution; and removing the perchlorate depleted solution. The multi-anion are selected from chloride, chlorate, perchlorate, sulphate, and dichromate, present in electrolytic processes for the production of sodium chlorate.
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