Method for preparing difluoroacetic acid
    1.
    发明授权
    Method for preparing difluoroacetic acid 有权
    二氟乙酸的制备方法

    公开(公告)号:US09120740B2

    公开(公告)日:2015-09-01

    申请号:US13381607

    申请日:2010-06-28

    摘要: A method for preparing difluoroacetic acid is described. The method can include: reacting a difluoroacetic acid ester with an aliphatic carboxylic acid which, after transesterification, results in the formation of difluoroacetic acid and the corresponding carboxylic acid ester, the carboxylic acid being selected such that the ester of the carboxylic acid has a lower boiling point than that of difluoroacetic acid; and removing the ester of the carboxylic acid by distillation as the ester forms, thus enabling the difluoroacetic acid to be recovered.

    摘要翻译: 描述了制备二氟乙酸的方法。 该方法可以包括:使二氟乙酸酯与脂族羧酸反应,酯交换后,导致二氟乙酸和相应的羧酸酯的形成,羧酸被选择使得羧酸的酯具有较低的 沸点高于二氟乙酸; 并且通过蒸馏除去羧酸的酯作为酯形成,从而能够回收二氟乙酸。

    METHOD FOR PREPARING DIFLUOROACETIC ACID
    2.
    发明申请
    METHOD FOR PREPARING DIFLUOROACETIC ACID 有权
    制备二元酸的方法

    公开(公告)号:US20120123159A1

    公开(公告)日:2012-05-17

    申请号:US13381607

    申请日:2010-06-28

    IPC分类号: C07C51/347

    摘要: A method for preparing difluoroacetic acid is described. The method can include: reacting a difluoroacetic acid ester with an aliphatic carboxylic acid which, after transesterification, results in the formation of difluoroacetic acid and the corresponding carboxylic acid ester, the carboxylic acid being selected such that the ester of the carboxylic acid has a lower boiling point than that of difluoroacetic acid; and removing the ester of the carboxylic acid by distillation as the ester forms, thus enabling the difluoroacetic acid to be recovered.

    摘要翻译: 描述了制备二氟乙酸的方法。 该方法可以包括:使二氟乙酸酯与脂族羧酸反应,酯交换后,导致二氟乙酸和相应的羧酸酯的形成,羧酸被选择使得羧酸的酯具有较低的 沸点高于二氟乙酸; 并且通过蒸馏除去羧酸的酯作为酯形成,从而能够回收二氟乙酸。

    Use of a solvent/antifoam substance mixture in aqueous formulations and resulting formulations
    4.
    发明申请
    Use of a solvent/antifoam substance mixture in aqueous formulations and resulting formulations 审中-公开
    在水性制剂和所得制剂中使用溶剂/消泡剂混合物

    公开(公告)号:US20050164884A1

    公开(公告)日:2005-07-28

    申请号:US10503805

    申请日:2003-02-06

    摘要: The invention relates to the application, in an aqueous formulation, of a mixture comprising at least one solvent and at least one substance having antifoam properties in aqueous medium; the solvent/substance weight ratio is between 99.95/0.05 and 90/10; said solvent is chosen from those for which, in all or part of the range of the abovementioned weight ratio, the mixture is homogeneous, and from those for which the aqueous formulation, comprising from 0.01 50 5% by weight of mixture, is homogeneous.

    摘要翻译: 本发明涉及在水性制剂中应用包含至少一种溶剂和至少一种在水性介质中具有消泡性质的物质的混合物; 溶剂/物质的重量比为99.95 / 0.05〜90/10; 所述溶剂选自其中,在上述重量比的全部或部分范围内,所述混合物是均匀的,并且其中含有0.0150重量%混合物的水性制剂是均匀的。