PROCESS FOR REDUCING 3,3,3-TRIFLUOROPROPYNE IN 2,3,3,3-TETRAFLUOROPROPENE

PROCESS FOR REDUCING 3,3,3-TRIFLUOROPROPYNE IN 2,3,3,3-TETRAFLUOROPROPENE

The invention relates to a process for reducing the concentration of a fluorinated alkyne impurity, such as 3,3,3-trifluoropropyne (TFPY), in 2,3,3,3-tetrafluoropropene (HFO-1234yf) which comprises contacting such a mixture with a caustic material, such as sodium hydroxide (NaOH), under conditions e...

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Bibliographische Detailangaben
Hauptverfasser: PEREZ Willie Josue, ZHAI Yian, WANG Haiyou, LABUDA Lucas Peter, TUNG Hsueh Sung, BOROWSKI Ralph John, TU Fang Huang, WELCH John L
Format: Patent
Sprache:eng ; spa
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Zusammenfassung:The invention relates to a process for reducing the concentration of a fluorinated alkyne impurity, such as 3,3,3-trifluoropropyne (TFPY), in 2,3,3,3-tetrafluoropropene (HFO-1234yf) which comprises contacting such a mixture with a caustic material, such as sodium hydroxide (NaOH), under conditions effective to reduce the concentration of the fluorinated alkyne impurity, including in some practices reducing the concentration by at least about 50%. La invención se refiere a un proceso para reducir la concentración de la impureza alquino fluorado, tal como 3,3,3-trifluoropropino (TFPY), en 2,3,3,3-tetrafluoropropeno (HFO-1234yf), que comprende poner en contacto dicha mezcla con un material cáustico, tal como hidróxido de sodio (NaOH), en condiciones eficaces para reducir la concentración de la impureza alquino fluorado, incluye, en algunas prácticas, reducir la concentración en al menos aproximadamente 50%.