METHOD FOR REMOVING HALOGENATED ETHYLENE IMPURITY IN 2,3,3,3-TETRAFLUOROPROPENE PRODUCT
To provide: a composition that comprises a high-purity HFO-1234yf; and methods for purifying HFO-1234yf.SOLUTION: A composition comprises 2,3,3,3-tetrafluoropropene and halogenated ethylene impurities including HCFO-1131(CH2=CFCl and/or trans-/cis-CHF=CHCl), HCO-1140(CH2=CHCl) or combination thereof...
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Format | Patent |
Language | English Japanese |
Published |
21.01.2021
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Abstract | To provide: a composition that comprises a high-purity HFO-1234yf; and methods for purifying HFO-1234yf.SOLUTION: A composition comprises 2,3,3,3-tetrafluoropropene and halogenated ethylene impurities including HCFO-1131(CH2=CFCl and/or trans-/cis-CHF=CHCl), HCO-1140(CH2=CHCl) or combination thereof. The halogenated ethylene impurities are present in the amount of more than 0 ppm to 50 ppm or less and 2,3,3,3-tetrafluoropropene is present in the composition in the amount of at least 90 wt.%.SELECTED DRAWING: None
【課題】高純度HFO−1234yfを含有する組成物及びHFO−1234yfの精製方法の提供。【解決手段】2,3,3,3−テトラフルオロプロペン、及び、HCFO−1131(CH2=CFCl及び/又はトランス/シス−CHF=CHCl)、HCO−1140(CH2=CHCl)、又はこれらの組み合わせを含むハロゲン化エチレン不純物を含む組成物であって、前記ハロゲン化エチレン不純物が0ppmを超え50ppm以下の量で前記組成物中に存在し、2,3,3,3−テトラフルオロプロペンが、少なくとも90重量%で前記組成物中に存在する、組成物。【選択図】なし |
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AbstractList | To provide: a composition that comprises a high-purity HFO-1234yf; and methods for purifying HFO-1234yf.SOLUTION: A composition comprises 2,3,3,3-tetrafluoropropene and halogenated ethylene impurities including HCFO-1131(CH2=CFCl and/or trans-/cis-CHF=CHCl), HCO-1140(CH2=CHCl) or combination thereof. The halogenated ethylene impurities are present in the amount of more than 0 ppm to 50 ppm or less and 2,3,3,3-tetrafluoropropene is present in the composition in the amount of at least 90 wt.%.SELECTED DRAWING: None
【課題】高純度HFO−1234yfを含有する組成物及びHFO−1234yfの精製方法の提供。【解決手段】2,3,3,3−テトラフルオロプロペン、及び、HCFO−1131(CH2=CFCl及び/又はトランス/シス−CHF=CHCl)、HCO−1140(CH2=CHCl)、又はこれらの組み合わせを含むハロゲン化エチレン不純物を含む組成物であって、前記ハロゲン化エチレン不純物が0ppmを超え50ppm以下の量で前記組成物中に存在し、2,3,3,3−テトラフルオロプロペンが、少なくとも90重量%で前記組成物中に存在する、組成物。【選択図】なし |
Author | WANG HAIYOU TUNG HSUEH SUNG |
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DocumentTitleAlternate | 2,3,3,3−テトラフルオロプロペン生成物中のハロゲン化エチレン不純物を除去する方法 |
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Snippet | To provide: a composition that comprises a high-purity HFO-1234yf; and methods for purifying HFO-1234yf.SOLUTION: A composition comprises... |
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Title | METHOD FOR REMOVING HALOGENATED ETHYLENE IMPURITY IN 2,3,3,3-TETRAFLUOROPROPENE PRODUCT |
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