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    • 1. 发明授权
    • Process for the preparation of perfluoroalkanones
    • 制备全氟烷酮的方法
    • US06689917B2
    • 2004-02-10
    • US10257383
    • 2002-10-18
    • Kouzou NodaHirokazu Aoyama
    • Kouzou NodaHirokazu Aoyama
    • C07C4548
    • C07C45/00
    • The present invention provides a process for producing a linear perfluoroalkanone or a perfluorocycloalkanone, which comprises using as a starting material a combination of the same or different kinds of compounds that are selected from perfluoroalkanoyl halides represented by the formula: F(CF2)nCOX wherein X is F, Cl, Br or I and n is an integer of 1 to 8, or a perfluoroalkanedioyl dihalide represented by the formula: XOC(CF2)nCOX wherein X is F, Cl, Br or I and n is an integer of 3 to 8, and reacting the starting material with a metal carbonate or metal carbonates. According to the present invention, perfluoroalkanones can be produced with a good yield from relatively easily available starting materials by a simple synthesis method.
    • 本发明提供一种直链全氟烷酮或全氟环烷酮的制备方法,该方法包括使用选自由式F(CF 2)n COX表示的全氟烷酰基卤化物的相同或不同种类的化合物作为起始原料,其中X 是F,Cl,Br或I,n是1〜8的整数,或由式XOC(CF 2)n COX表示的全氟烷二酰基二卤化物,其中X是F,Cl,Br或I,n是3〜 8,并使原料与金属碳酸盐或金属碳酸盐反应。 根据本发明,通过简单的合成方法,可以通过相对容易获得的起始原料以高产率生产全氟烷醇酮。
    • 4. 发明授权
    • Manufacturing method for 1,1,1,3,3-pentafluoropropane
    • 1,1,1,3,3-五氟丙烷的制备方法
    • US6060628A
    • 2000-05-09
    • US894694
    • 1997-08-26
    • Hirokazu AoyamaNoriaki ShibataAkinori Yamamoto
    • Hirokazu AoyamaNoriaki ShibataAkinori Yamamoto
    • B01J23/44C07B61/00C07C17/23C07C17/38C07C19/08C07F15/00
    • C07C19/08C07C17/23
    • A manufacturing method for 1,1,1,3,3-pentafluoropropane in which the method is composed of:step A wherein 2,3-dichloro-1,1,1,3,3-pentafluoropropane is reduced with hydrogen under the presence of hydrogenation catalyst in gaseous phase;step B wherein all of the products of the said step A are introduced into a cooler condenser, so that either a component of hydrogen and hydrogen chloride as non-condensation component and another compoment of 1,1,1,3,3-pentafluoropropane as condensation components or a component of hydrogen as non-condensation component and another component of hydrogen chloride and 1,1,1,3,3-pentafluoropropane as condensation component are obtained;step C wherein hydrogen is separated from the non-condensation component of the said step B, and it is recycled to the said step A; andstep D wherein 1,1,1,3,3-pentafluoropropane is separated from the condensation component of the said step B.The producing method based on a manufacturing process of 1,1,1,3,3-pentafluoropropane can be provided with good efficiency and economy in industrial scales.
    • PCT No.PCT / JP96 / 00273 Sec。 371日期:1997年8月26日 102(e)日期1997年8月26日PCT提交1996年2月8日PCT公布。 公开号WO96 / 26914 PCT 日期1996年6月9日1,1,1,3,3-五氟丙烷的制造方法,其中所述方法由以下组成:步骤A,其中2,3-二氯-1,1,1,3,3-五氟丙烷被还原 在氢气催化剂存在下用氢气气相; 步骤B,其中将所述步骤A的所有产物引入冷却器冷凝器中,使得氢和氯化氢的组分作为非缩合成分,另一组分为1,1,1,3,3-五氟丙烷作为 得到缩合成分或作为非缩合成分的氢的成分和作为缩合成分的氯化氢和1,1,1,3,3-五氟丙烷的其他成分; 步骤C,其中氢与所述步骤B的非缩合组分分离,并将其再循环至所述步骤A; 和步骤D,其中将1,1,1,3,3-五氟丙烷与所述步骤B的缩合组分分离。可以提供基于1,1,1,3,3-五氟丙烷的制备方法的制备方法 工业规模效益好,经济效益好。