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US 5,494,582 AGranted
Removal of selenium from water by ion-exchange
AssigneeNalco Chemical Company
InventorWalter H. Goodman
Life of this patent
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Abstract
Selenium compounds present in aqueous liquids containing sulfate and or chloride anions can be effectively removed by passing the liquid through a thiouronium modified anion ion exchange resin.
Claims3
A method for the removal of soluble selenite compounds from an aqueous liquid containing soluble selenite compounds and sulfate anions which comprises passing the aqueous liquid through a bed of a thiouronium modified anion exchange resin.
Dependencies are inferred from the claim text.