Compositions comprising tetrafluoropropene and carbon dioxide
    73.
    发明授权
    Compositions comprising tetrafluoropropene and carbon dioxide 有权
    包含四氟丙烯和二氧化碳的组合物

    公开(公告)号:US08053404B2

    公开(公告)日:2011-11-08

    申请号:US12558099

    申请日:2009-09-11

    IPC分类号: C09K13/00

    摘要: Disclosed are compositions useful in a wide variety of applications, including heat transfer fluids which possess a highly desirable and unexpectedly superior combination of properties, and heat transfer systems and methods based on these fluids. The preferred heat transfer fluid comprises from about 1 to about 40 percent, on a weight basis, of carbon dioxide (CO2) and from about 99 to about 60 percent, on a weight basis, of a compound having the Formula I XCFzR3-z (I), where X is a C2 or a C3 unsaturated, substituted or unsubstituted, alkyl radical, each R is independently Cl, F, Br, I or H, and z is 1 to 3. A preferred compound of Formula I is tetrafluoropropene, particularly 1,1,1,3-tetrafluoropropene and/or 1,1,1,3-tetrafluoropropene.

    摘要翻译: 公开了可用于各种应用的组合物,包括具有非常理想和意想不到的优异组合的传热流体,以及基于这些流体的传热系统和方法。 优选的传热流体包含以重量为基准的约1至约40重量%的二氧化碳(CO 2)和约99至约60重量%的具有式I XCF z R 3-z( I),其中X是C2或C3不饱和的取代或未取代的烷基,每个R独立地是Cl,F,Br,I或H,z是1至3.优选的式I化合物是四氟丙烯, 特别是1,1,1,3-四氟丙烯和/或1,1,1,3-四氟丙烯。

    Azeotrope-like compositions of 1-chloro-3,3,3-trifluoropropene and methyl iodide
    78.
    发明授权
    Azeotrope-like compositions of 1-chloro-3,3,3-trifluoropropene and methyl iodide 失效
    1-氯-3,3,3-三氟丙烯和甲基碘的类共沸组合物

    公开(公告)号:US07695635B2

    公开(公告)日:2010-04-13

    申请号:US12258537

    申请日:2008-10-27

    CPC分类号: A01N29/02 A01N2300/00

    摘要: An azeotropic or azeotrope-like composition comprising a mixture of methyl iodide, 1-chloro-3,3,3,-trifluoropropene, and optionally one or more of fluorocarbons and/or hydrofluorocarbons. The compositions are present as a gas, at temperatures of about 30° C. or below. The inventive compositions serve as a non-ozone-depleting gaseous fumigant which is useful in a variety of applications, in place of methyl bromide. These compositions serve as a drop-in replacement for gaseous methyl bromide, providing the benefits of a methyl iodide fumigant while also utilizing existing methyl bromide equipment.

    摘要翻译: 包含甲基碘,1-氯-3,3,3-三氟丙烯和任选的一种或多种氟代烃和/或氢氟烃的混合物的共沸或类共沸组合物。 该组合物以约30℃或更低的温度作为气体存在。 本发明的组合物用作非消耗臭氧气体熏蒸剂,其可用于各种应用,代替甲基溴。 这些组合物用作气态甲基溴的替代品,提供甲基碘熏蒸剂的优点,同时还利用现有的甲基溴设备。