HIGH PURITY E-1-CHLORO-3,3,3-TRIFLUOROPROPENE AND METHODS OF MAKING THE SAME
PROBLEM TO BE SOLVED: To provide methods of making E-1-chloro-3,3,3-trifluoropropene (1233zd(E)) essentially free of toxic impurities (e.g., 2-chloro-3,3,3-trifluoropropene (1233xf), chlorotetrafluoropropene (1224), and 3,3,3-trifluoropropyne).SOLUTION: A method for making E-1-chloro-3,3,3-trifluoro...
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Main Authors | , , , |
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Format | Patent |
Language | English Japanese |
Published |
08.09.2016
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Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To provide methods of making E-1-chloro-3,3,3-trifluoropropene (1233zd(E)) essentially free of toxic impurities (e.g., 2-chloro-3,3,3-trifluoropropene (1233xf), chlorotetrafluoropropene (1224), and 3,3,3-trifluoropropyne).SOLUTION: A method for making E-1-chloro-3,3,3-trifluoropropene comprises the steps of: (a) feeding at least one reactor feed stream containing 1,1,1,3,3-pentachloropropane and/or 1,1,3,3-tetrachloropropene and/or 1,1,1,3-tetrachloropropene mixture to a least one fluorination reactor and (b) ensuring that the at least one feed stream contains not more than about 0.2 wt.% of 1,1,1,2,3-pentachloropropane and/or 1,1,2,3-tetrachloropropene, and/or 2,3,3,3-tetrachloropropene mixture.SELECTED DRAWING: None
【課題】毒性不純物(例えば、2−クロロ−3,3,3−トリフルオロプロペン(1233xf)、クロロテトラフルオロプロペン(1224)、及び3,3,3−トリフルオロプロピン)を実質的に含まない、E−1−クロロ−3,3,3−トリフルオロプロペン(1233zd(E))の製造方法を提供。【解決手段】(a)1,1,1,3,3−ペンタクロロプロパン及び/又は1,1,3,3−テトラクロロプロペン及び/又は1,1,1,3−テトラクロロプロペンの混合物を含む少なくとも1つの反応器供給流を少なくとも1つのフッ素化反応器に供給し;(b)少なくとも1つの供給流が約0.2重量%以下の1,1,1,2,3−ペンタクロロプロパン及び/又は1,1,2,3−テトラクロロプロペン及び/又は2,3,3,3−テトラクロロプロペンの混合物を含むことを確保する;工程を含む、E−1−クロロ−3,3,3−トリフルオロプロペンを製造する方法。【選択図】なし |
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Bibliography: | Application Number: JP20160074840 |