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US 10,280,082 B2Granted
Process to recover hydrogen fluoride from hydrogen fluoride-polymer compositions
AssigneeHoneywell International Inc.
InventorsMatthew H. Luly, Bernard E. Pointner
Life of this patent
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Abstract
A method of preparing aqueous hydrogen fluoride is provided. The method includes providing a composition including a cross-linked polymer with absorbed hydrogen fluoride. The cross-linked copolymer includes acrylamide units and acrylic acid salt units. The method further includes contacting the composition with water to release at least a portion of the hydrogen fluoride from the composition to the water to form the aqueous hydrogen fluoride.
Claims20
A method of preparing aqueous hydrogen fluoride comprising:
- providing a composition including a cross-linked polymer with absorbed hydrogen fluoride, the cross-linked copolymer including acrylamide units and acrylic acid salt units;
- and
- contacting the composition with water, to release at least a portion of the hydrogen fluoride from the composition to the water to form the aqueous hydrogen fluoride.
Dependencies are inferred from the claim text.