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US 4,071,446 AGranted
Method for regeneration of weak acid cation exchange resin
AssigneeRohm and Haas Company
InventorRobert Kunin
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Abstract
A composition for regenerating weak acid cation exchange resin comprising about 70-80 weight percent alkali metal chloride, about 5-15 weight percent alkali metal carbonate, and the balance an alkali metal chelating polycarboxylate and a method of regeneration comprising contacting the resin with a solution of the composition are disclosed.
Claims1
A process for regenerating a weak acid cation exchange resin comprising contacting the resin with a solution of 70 to 80 weight percent alkali metal chloride, about 5 to 15 percent alkali metal carbonate and the balance alkali metal chelating polycarboxylate.
Dependencies are inferred from the claim text.