PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE
    1.
    发明申请
    PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE 有权
    生产2,3,3,3-四氯丙烯的方法

    公开(公告)号:US20100029997A1

    公开(公告)日:2010-02-04

    申请号:US12510740

    申请日:2009-07-28

    IPC分类号: C07C19/08

    摘要: The present invention discloses a manufacturing process to produce high purity 1234yf from 245eb, which preferably includes the removal of impurities present in 245eb raw material, the dehydrofluorination of 245eb, and the removal of impurities present in final crude product. The disclosed manufacturing process allows the production of a 1234yf product with lower the levels of 1225ye and/or trifluoropropene, preferably in amounts of less than about 500, and 50 ppm, respectively.

    摘要翻译: 本发明公开了一种从245eb生产高纯度1234yf的制造方法,其优选包括去除245eb原料中存在的杂质,245eb的脱氟化氢和去除最终粗产物中存在的杂质。 所公开的制造方法允许生产具有较低1225ye和/或三氟丙烯含量的1234yf产品,优选分别小于约500ppm和50ppm。

    CARRIER SOLVENT FOR FINGERPRINT FORMULATIONS
    7.
    发明申请
    CARRIER SOLVENT FOR FINGERPRINT FORMULATIONS 失效
    载体溶液用于指纹制剂

    公开(公告)号:US20120308723A1

    公开(公告)日:2012-12-06

    申请号:US13587433

    申请日:2012-08-16

    IPC分类号: A61B5/117

    CPC分类号: A61B5/1172

    摘要: A method and composition for transforming a latent physiological biometric into a visible physiological biometric are provided, the method comprising: providing a latent biometric disposed on a surface of an article, wherein said biometric comprises at least one eccrine-derived compound; contacting said latent biometric with a developing solution, wherein said developing solution comprises at least one imaging reagent selected from ninhydrin and 1,8-diazafluoren-9-one and a carrier solvent comprising at least one C3-C4 hydrofluorocarbon; and reacting said imaging reagent with said eccrine-derived compound to produce a visible physiological biometric.

    摘要翻译: 提供了一种用于将潜在生理学生物转化为可见生理生物学的方法和组合物,所述方法包括:提供设置在制品表面上的潜伏生物测定,其中所述生物测定包含至少一种衍生化合物; 使所述潜在生物测定与显影溶液接触,其中所述显影溶液包含至少一种选自茚三酮和1,8-二氮杂芴-9-酮的成像试剂和包含至少一种C 3 -C 4氢氟烃的载体溶剂; 并使所述成像试剂与所述外分泌衍生的化合物反应以产生可见的生理学生物学特征。