公开(公告)号：US10913697B2

公开(公告)日：2021-02-09

申请号：US16346739

申请日：2017-11-02

申请人： Honeywell International Inc.

发明人： Haiyou Wang ,  Hsueh Sung Tung ,  Willie Josue Perez ,  Yian Zhai ,  Ralph John Borowski ,  Fang Huang Tu ,  Lucas Peter Labuda ,  John L. Welch

IPC分类号： C07C17/00 ,  C07C17/395 ,  C07C17/42 ,  C07C21/18

摘要： 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%.

公开(公告)号：US20200055804A1

公开(公告)日：2020-02-20

申请号：US16346739

申请日：2017-11-02

申请人： Honeywell International Inc.

发明人： Haiyou Wang ,  Hsueh Sung Tung ,  Willie Josue Perez ,  Yian Zhai ,  Ralph John Borowski ,  Fang Huang Tu ,  Lucas Peter Labuda ,  John L. Welch

IPC分类号： C07C17/395 ,  C07C17/42

摘要： 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%.