METHOD FOR DRYING HCFO-1233zd

PROBLEM TO BE SOLVED: To provide a method for recovering 1-chloro-3,3,3-trifluoropropene from a 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd) mixture, the method allowing improved recovery rates.SOLUTION: A method for recovering 1-chloro-3,3,3-trifluoropropene comprises forming an azeotropic or azeo...

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Hauptverfasser: STEPHEN A COTTRELL, CHIU YUON, GUSTAVO CERRI, HANG T PHAM
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a method for recovering 1-chloro-3,3,3-trifluoropropene from a 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd) mixture, the method allowing improved recovery rates.SOLUTION: A method for recovering 1-chloro-3,3,3-trifluoropropene comprises forming an azeotropic or azeotrope-like composition comprising 1-chloro-3,3,3-trifluoropropene and water; conveying the formed composition into a separator; and recovering an organic layer comprising 1-chloro-3,3,3-trifluoropropene.SELECTED DRAWING: Figure 1 【課題】1−クロロ−3,3,3−トリフルオロプロペン(HCFO−1233zd)混合物から、向上した回収率を可能とする、1−クロロ−3,3,3−トリフルオロプロペンの回収方法の提供。【解決手段】1−クロロ−3,3,3−トリフルオロプロペン及び水を含む共沸性又は共沸混合物様の組成物を形成し;形成された該組成物を分離器中に送り;そして、1−クロロ−3,3,3−トリフルオロプロペンを含む有機層を回収する;ことを含む1−クロロ−3,3,3−トリフルオロプロペンの回収方法の提供。【選択図】図1