Title:
PROCESS FOR REDUCING 3,3,3-TRIFLUOROPROPYNE IN 2,3,3,3-TETRAFLUOROPROPENE
Document Type and Number:
Japanese Patent JP2023052523
Kind Code:
A
Abstract:
To provide a novel high-efficiency purification method of a 2,3,3,3-tetrafluoropropene (HFO 1234 yf) containing fluorinated alkyne impurities.SOLUTION: There is provided 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%).SELECTED DRAWING: Figure 1
Inventors:
One, Hyoyo
Tung, Shwe Soon
Willie José, Perez
Chai, Ian
Borowski, Ralph John
Chu, Fang Fan
Rabda, Lucas Peter
Welch, John El
Tung, Shwe Soon
Willie José, Perez
Chai, Ian
Borowski, Ralph John
Chu, Fang Fan
Rabda, Lucas Peter
Welch, John El
Application Number:
JP2023006621A
Publication Date:
April 11, 2023
Filing Date:
January 19, 2023
Export Citation:
Assignee:
Honeywell International Inc.
International Classes:
C07C17/395; C07C21/18
Attorney, Agent or Firm:
Osamu Yamamoto
Toru Miyamae
Junichi Matsuo
Toyoji Matsuda
Toru Miyamae
Junichi Matsuo
Toyoji Matsuda
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