Title:
SEPARATION METHOD OF 2,3,3,3-TETRAFLUOROPROPENE AND 1,1,1,2-TETRAFLUOROETHANE AND MANUFACTURING METHOD OF 2,3,3,3-TETRAFLUOROPROPENE
Document Type and Number:
Japanese Patent JP2017007946
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method of effectively separating 2,3,3,3-tetrafluoropropene (HFO-1234yf) and 1,1,1,2-tetrafluoroethane (HFC-134a) from a mixture containing HFO-1234yf and HFC-134a and a method of effectively manufacturing HFO-1234yf by the same.SOLUTION: There is provided a separation method of HFO-1234yf and HFC-134a having a process of adding a first extraction solvent selected from alcohols, ketones, esters, amides, ethers, sulfoxides, nitrils, hydrofluoroethers having 2 to 4 carbon atoms and dichloropropane to a first mixture containing HFO-1234yf and HFC-134a to obtain a second mixture and an extraction distillation process of distilling the second mixture to obtain an extraction containing HFO-1234yf as a main component and a can extrusion article containing a first extraction solvent as a main component and HFC-134a.SELECTED DRAWING: Figure 1
Inventors:
OTSUKA TETSUO
FURUTA SHOJI
FURUTA SHOJI
Application Number:
JP2013236099A
Publication Date:
January 12, 2017
Filing Date:
November 14, 2013
Export Citation:
Assignee:
ASAHI GLASS CO LTD
International Classes:
C07C17/386; C07C21/18
Attorney, Agent or Firm:
Patent Business Corporation Sakura International Patent Office
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