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    METHODS OF CLEANING COMPONENTS HAVING INTERNAL PASSAGES
    14.
    发明申请
    METHODS OF CLEANING COMPONENTS HAVING INTERNAL PASSAGES 审中-公开
    具有内部通道清​​洁组件的方法

    公开(公告)号：US20110112002A1

    公开(公告)日：2011-05-12

    申请号：US12617479

    申请日：2009-11-12

    申请人： Timothy Hudson ,  William F. Hehmann ,  Rajiv Ratna Singh ,  Phil Roark ,  Ryan Hulse ,  Andrew Poss

    发明人： Timothy Hudson ,  William F. Hehmann ,  Rajiv Ratna Singh ,  Phil Roark ,  Ryan Hulse ,  Andrew Poss

    IPC分类号： C11D1/02

    CPC分类号： C11D11/0041 ,  C11D7/08 ,  C11D11/0064

    摘要： Methods are provided for cleaning a component having internal passages. A method includes contacting the component with an aqueous hydrogen fluoride solution without agitating the solution for a time period in a range of about 20 minutes to about an hour to dissolve a solid piece of blockage material blocking at least a portion of the internal passages, the aqueous hydrogen fluoride solution comprising, by volume, about 40 percent to about 60 percent hydrogen fluoride and optionally, a corrosion inhibitor, and the blockage material comprising a silicate and rinsing the component with water to remove at least a portion of the aqueous hydrogen fluoride solution from surfaces of the component defining at least a portion of the internal passages.

    摘要翻译： 提供了用于清洁具有内部通道的部件的方法。 一种方法包括使组分与氟化氢水溶液接触，而不会在约20分钟至约1小时的范围内搅拌该溶液一段时间以溶解固定的阻塞至少一部分内部通道的堵塞材料， 氟化氢水溶液，其体积含有约40％至约60％的氟化氢和任选的腐蚀抑制剂，并且阻塞材料包含硅酸盐并用水冲洗该组分以除去至少一部分氟化氢水溶液 从限定至少一部分内部通道的部件的表面。

    Process for the purification of hydrofluoroolefins
    15.
    发明授权
    Process for the purification of hydrofluoroolefins 有权
    纯化氢氟烯烃的方法

    公开(公告)号：US08609909B2

    公开(公告)日：2013-12-17

    申请号：US12696613

    申请日：2010-01-29

    申请人： Ryan Hulse ,  Rajiv Ratna Singh ,  Ian Shankland ,  Michael Van Der Puy

    发明人： Ryan Hulse ,  Rajiv Ratna Singh ,  Ian Shankland ,  Michael Van Der Puy

    IPC分类号： C07C17/386 ,  B01D3/36

    CPC分类号： B01D11/0426 ,  B01D11/0492

    摘要： Processes for the preparation and purification of hydrofluoroolefins such as tetrafluorinated propenes. A process is provided for separating a first hydrofluoroolefin from a second hydrofluoroolefin by a) providing a mixture including a first hydrofluoroolefin and a second hydrofluoroolefin, which first hydrofluoroolefin is preferentially more reactive with an amine than the second hydrofluoroolefin; b) adding a sufficient amount of an amine to the mixture to form a combination including the second hydrofluoroolefin and a reaction product of the first hydrofluoroolefin and the amine; and then c) separating the reaction product from the combination. This is particularly useful for removing 1,2,3,3,3-pentafluoropropene (HFO-1225ye) impurities from the hydrofluoroolefin 2,3,3,3-tetrafluoropropene (HFO-1234yf). HFO-1234yf is a refrigerant with low global warming potential.

    摘要翻译： 用于制备和纯化氢氟烯烃如四氟化丙烯的方法。 提供了一种通过以下方法提供第一氢氟烯烃与第二氢氟烯烃的分离：a）提供包含第一氢氟烯烃和第二氢氟烯烃的混合物，该第一氢氟烯烃优选比第二氢氟烯烃更能反应胺; b）向混合物中加入足够量的胺以形成包含第二氢氟烯烃和第一氢氟烯烃与胺的反应产物的组合; 然后c）将反应产物与组合物分离。 这对于从氢氟烯烃2,3,3,3-四氟丙烯（HFO-1234yf）中除去1,2,3,3,3-五氟丙烯（HFO-1225ye）杂质是特别有用的。 HFO-1234yf是一种全球变暖潜力较低的制冷剂。