PROCESS TO RECOVER HYDROGEN FLUORIDE FROM HYDROGEN FLUORIDE-POLYMER COMPOSITIONS

PROCESS TO RECOVER HYDROGEN FLUORIDE FROM HYDROGEN FLUORIDE-POLYMER COMPOSITIONS

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 comp...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: POINTNER, Bernard E, LULY, Matthew H
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Beschreibung
Zusammenfassung: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.