Method for the reduction of iodine compounds from a process stream
    2.
    发明公开
    Method for the reduction of iodine compounds from a process stream 审中-公开
    Verfahren zur Minderung von Iodverbindungen aus einem Prozessablauf

    公开(公告)号:EP1114814A2

    公开(公告)日:2001-07-11

    申请号:EP00127663.3

    申请日:2000-12-18

    申请人: Haldor Topsoe A/S

    摘要: A method for the reduction in iodine content in a mixture, particularly in a mixture of carboxylic acids and/or carboxylic anhydrides with alkyl iodides and/or hydriodic acid, comprises contacting the organic medium in the vapour phase at elevated temperature with a metal salt dispersed on activated charcoal. The metal salt may be a carboxylate salt, a carbonate, an oxide, a hydroxide and any other salt, which may react with the organic medium to give a metal carboxylate salt. The metal may be a main group element, a lanthanide, an actinide, zinc and copper. This process converts alkyl iodide compounds converted to their corresponding carboxylate esters, while the iodine is bound in the purification mass as inorganic iodide.

    摘要翻译: 减少混合物中碘含量的方法,特别是羧酸和/或羧酸酐与烷基碘化物和/或氢碘酸的混合物中的碘含量的方法包括使高分子化的气相中的有机介质与分散的金属盐接触 活性炭。 金属盐可以是羧酸盐,碳酸盐,氧化物,氢氧化物和任何其它盐,其可以与有机介质反应得到金属羧酸盐。 金属可以是主要元素,镧系元素,锕系元素,锌和铜。 该方法转化为转化成其相应的羧酸酯的烷基碘化合物,同时将碘作为无机碘化物在纯化物质中结合。

    A METHOD OF PURIFYING A DICARBOXYLIC ACID COMPOUND
    6.
    发明公开
    A METHOD OF PURIFYING A DICARBOXYLIC ACID COMPOUND 审中-公开
    VERFAHREN ZUR REINIGUNG EINERDICARBONSÄUREVERBINDUNG

    公开(公告)号:EP2702031A2

    公开(公告)日:2014-03-05

    申请号:EP12704955.9

    申请日:2012-01-26

    IPC分类号: C07C51/34

    摘要: A process for purifying a dicarboxylic acid that is derived from the mixed oxidation products from an ozonization of a mixture containing an ethylenically unsaturated compound having between 6 to 24 carbons, the process includes distilling the mixed oxidation products to provide a first distillate and a second distillate, partitioning the second distillate between an aqueous layer and an organic solvent layer to extract a C9 to C22 monocarboxylic acid impurity, separating the organic solvent layer from the aqueous layer, and isolating the dicarboxylic acid having a residual content of the C9 to C22 monocarboxylic acid impurity in an amount that is less than 0.5% by weight.

    摘要翻译: 一种从含有6至24个碳原子的烯属不饱和化合物的混合物的臭氧化中纯化衍生自混合氧化产物的二羧酸的方法,该方法包括蒸馏混合氧化产物以提供第一馏出物和第二馏出物 在水层和有机溶剂层之间分配第二馏出物,提取C9至C22单羧酸杂质,将有机溶剂层与水层分离,并将残留量为C9至C22单羧酸的二羧酸分离 小于0.5重量%的杂质。