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    • 3. 发明申请
    • Process For The Preparation of Fluorinated Compounds
    • 氟化合物的制备方法
    • US20110021849A1
    • 2011-01-27
    • US12842737
    • 2010-07-23
    • Karine AvrilBertrand Collier
    • Karine AvrilBertrand Collier
    • C07C21/18C07C17/38C07C17/383
    • C07C21/18C07C17/25C07C17/354C07C17/383C07C19/08
    • A subject-matter of the invention is a process for the preparation of 2,3,3,3-tetrafluoro-1-propene comprising the following stages: (i) hydrogenation of hexafluoropropylene to give 1,1,1,2,3,3-hexafluoropropane; (ii) dehydrofluorination of the 1,1,1,2,3,3-hexafluoropropane obtained in the preceding stage to give 1,2,3,3,3-pentafluoro-1-propene; (iii) hydrogenation of the 1,2,3,3,3-pentafluoro-1-propene obtained in the preceding stage to give 1,1,1,2,3-pentafluoropropane; (iv) purification of the 1,1,1,2,3-pentafluoropropane obtained in the preceding stage; and (v) dehydrofluorination of the 1,1,1,2,3-pentafluoropropane obtained in the preceding stage to give 2,3,3,3-tetrafluoro-1-propene; and (vi) purification of the 2,3,3,3-tetrafluoro-1-propene of the preceding stage.
    • 本发明的主题是制备2,3,3,3-四氟-1-丙烯的方法,包括以下步骤:(i)六氟丙烯的氢化,得到1,1,1,2,3, 3-六氟丙烷; (ii)前段得到的1,1,1,2,3,3-六氟丙烷的脱氟化氢,得到1,2,3,3,3-五氟-1-丙烯; (iii)在前一阶段获得的1,2,3,3,3-五氟-1-丙烯的氢化,得到1,1,1,2,3-五氟丙烷; (iv)前一阶段获得的1,1,1,2,3-五氟丙烷的纯化; 和(v)前一阶段获得的1,1,1,2,3-五氟丙烷的脱氟化氢,得到2,3,3,3-四氟-1-丙烯; 和(vi)前一阶段的2,3,3,3-四氟-1-丙烯的纯化。
    • 6. 发明申请
    • METHOD OF RECOVERING HYDROFLUORIC ACID
    • 回收氢氟酸的方法
    • US20100280292A1
    • 2010-11-04
    • US12305875
    • 2007-05-21
    • Bertrand Collier
    • Bertrand Collier
    • C07C19/08
    • C01B7/196B01D53/002B01D2257/2047C01B7/195Y02C20/30
    • The present invention relates to a process for producing pentafluoroethane. More particularly, the subject of the invention is a continuous process for producing pentafluoroethane comprising (i) a step of fluorinating perchloroethylene (PER) with hydrofluoric acid, in the gas phase, in the presence of a catalyst, (ii) a step of separating the products issuing from step (i) in order to give a fraction of light products and a fraction of heavy products, comprising hydrofluoric acid, unreacted perchloroethylene and under-fluorinated products, and (iii) a step of pretreating the fraction of heavy products before recycling to step (i).
    • 本发明涉及一种生产五氟乙烷的方法。 更具体地,本发明的主题是生产五氟乙烷的连续方法,其包括(i)在气相中,在催化剂存在下,用氢氟酸氟化全氯乙烯(PER)的步骤,(ii)分离步骤 从步骤(i)中发出的产品,以产生一小部分轻质产品和一部分重质产品,其中包括氢氟酸,未反应的全氯乙烯和未完全氟化的产物,以及(iii)预处理重质产物部分的步骤 回收到步骤(i)。