PROCESS FOR INHIBITING UNWANTED FREE-RADICAL POLYMERIZATION OF ACRYLIC ACID PRESENT IN A LIQUID PHASE P

PROCESS FOR INHIBITING UNWANTED FREE-RADICAL POLYMERIZATION OF ACRYLIC ACID PRESENT IN A LIQUID PHASE P

Inhibiting the unwanted radical polymerization of acrylic acid present in a liquid phase (P1), comprises adding at least one chemical compound of copper to the liquid phase (P1). The amount of acrylic acid is 10 wt.%. The liquid phase additionally contains propionic acid (at least 100 wt. parts per...

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Bibliographische Detailangaben
Hauptverfasser: BLUM, Till, MARTIN, Friedrich-Georg, ZUROWSKI, Peter, JÄGER, Ulrich, HAREMZA, Sylke, RISSEL, Steffen, FRIESE, Thorsten, KORN, Tobias, Johannes, SCHLIEPHAKE, Volker
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:Inhibiting the unwanted radical polymerization of acrylic acid present in a liquid phase (P1), comprises adding at least one chemical compound of copper to the liquid phase (P1). The amount of acrylic acid is 10 wt.%. The liquid phase additionally contains propionic acid (at least 100 wt. parts per million, based on wt. of acrylic acid in the liquid phase) and glyoxal (at least 100 wt. parts per million, based on wt. of acrylic acid in the liquid phase). An independent claim is also included for the liquid phase (P1), comprising at least one chemical compound of copper.