| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a producing method of high purity 2,3,3,3-tetrafluoro-1-propene (HFO-1234yf) at high selectivity, high yield and high productivity.SOLUTION: There is provided a method including (1) a hydrogenated process of hexafluoropropylene to obtain 1,1,1,2,3,3-hexafluoropropane, (ii) a dehydrofluorination process of 1,1,1,2,3,3-hexafluoropropane obtained by (1) to obtain 1,2,3,3,3-pentafluoro-1-propene, (iii) a vapor phase hydrogenation process of the 1,2,3,3,3-pentafluoro-1-propene to obtain 1,1,1,2,3-pentafluoropropane, (iv) a purification process of the 1,1,1,2,3-pentafluoropropane obtained by (iii), (v) a dehydrofluorination process of 1,1,1,2,3-pentafluoropropane obtained by (iv), and (vi) purifying HFO-1234YJ to obtain HFO-1234YJ.</p> |
