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    • 15. 发明授权
    • Method for producing fluorine-containing alkane
    • 含氟烷烃的生产方法
    • US09428429B2
    • 2016-08-30
    • US13634047
    • 2011-02-18
    • Yuko ShiotaniKakeru HanabusaTakehiro ChakiKazuhiro Takahashi
    • Yuko ShiotaniKakeru HanabusaTakehiro ChakiKazuhiro Takahashi
    • C07C17/354C07C17/23
    • C07C17/23C07C17/354C07C19/08
    • The present invention provides a method for producing a fluorine-containing alkane, which comprises reacting at least one fluorine-containing compound selected from the group consisting of chlorine-containing fluoroalkanes and fluorine-containing alkenes with hydrogen gas in the presence of catalysts, wherein two or more catalysts having different catalytic activities are used, and the fluorine-containing compound and hydrogen gas, which are starting materials, are sequentially brought into contact with the catalysts in the order of the catalyst having a lower catalytic activity followed by the catalyst having a higher catalytic activity. According to the present invention, in the method for producing a fluorine-containing alkane by using chlorine-containing fluoroalkane or fluorine-containing alkene as a starting material, and subjection it to a reduction reaction or a hydrogen addition reaction, the objective fluorine-containing alkane can be produced with high productivity.
    • 本发明提供一种含氟烷烃的制造方法,其特征在于,在催化剂存在下,使选自含氟的氟代烷烃和含氟烯烃的至少一种含氟化合物与氢气反应, 使用具有不同催化活性的催化剂或更多的催化剂,并且作为起始原料的含氟化合物和氢气按催化剂的顺序依次与催化剂接触,催化剂的催化活性低于催化剂,其后催化剂具有 更高的催化活性。 根据本发明,在使用含氯氟烷烃或含氟烯烃作为起始原料的含氟烷烃的制造方法中,将其置于还原反应或氢加成反应中,目标含氟 可以高生产率生产烷烃。
    • 16. 发明授权
    • Process for the preparation of fluorinated compounds
    • 氟化合物的制备方法
    • US09255047B2
    • 2016-02-09
    • US12602707
    • 2009-08-19
    • Anne PigamoMichel DevicLaurent Wendlinger
    • Anne PigamoMichel DevicLaurent Wendlinger
    • C07C17/354C07C17/25C07C21/18
    • C07C17/25C07C17/354C07C21/18Y02P20/582C07C19/08
    • A subject-matter of the invention is a process for the preparation of 2,3,3,3-tetrafluoro-1-propene which comprises 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; and (iv) dehydrofluorination of the 1,1,1,2,3-pentafluoropropane obtained in the preceding stage to give 2,3,3,3-tetrafluoro-1-propene. Stages (ii) and (iv) are carried out using a water and potassium hydroxide mixture with the potassium hydroxide representing between 58 and 86% by weight of the mixture and at a temperature of between 110 and 180° C.
    • 本发明的主题是制备2,3,3,3-四氟-1-丙烯的方法,其包括以下步骤:(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; 和(iv)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。 阶段(ii)和(iv)使用氢氧化钾与氢氧化钾混合物进行,其中氢氧化钾占混合物重量的58-86%,在110-180℃的温度下进行。