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US 11,767,245 B1Granted
Process for boron removal from water
OwnerPaul Charles Wegnerinventor
Life of this patent
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Abstract
A process for boron removal from feed water. The process includes the steps of introducing a stream of feed water with sodium borate salt or calcium borate salt therein to an ion exchange vessel containing boron-selective resin modified with potassium sulfate or sodium sulfate. The feed water is reacted with the boron-selective resin modified with sodium sulfate or potassium sulfate. The ion exchange resin in the ion exchange vessel is periodically regenerated.
Claims13
A process for boron removal from feed water, which process comprises:
- introducing a stream of feed water containing boron therein to an ion exchange vessel containing boron-selective resin in sulfate or chloride form and containing methylglucamine;
- permitting said feed water to react with said boron-selective resin in sulfate or chloride form;
- withdrawing effluent from said ion exchange vessel;
- adjusting the effluent from said ion exchange vessel with potassium hydroxide and a pH control resin to a neutral pH to produce potassium sulfate and boric acid;
- and
- periodically regenerating said boron-selective resin in said ion exchange vessel.
3 more elements
Dependencies are inferred from the claim text.