Salicylaldoximes and method of preparation
    1.
    发明授权
    Salicylaldoximes and method of preparation 有权
    水杨酸和制备方法

    公开(公告)号:US06288276B1

    公开(公告)日:2001-09-11

    申请号:US09561667

    申请日:2000-05-02

    IPC分类号: C07C24908

    CPC分类号: C07C45/68

    摘要: Process for making Oximes of the formula IV wherein each of R2-R5 is hydrogen, a halogen, an alkyl or cycloalkyl group having from 1 to 36 carbon atoms, an aryl or alkaryl group having from 1 to 36 carbon atoms, an alkoxy or an aryloxy group having from 1 to 30 carbon atoms, an acyl group having from 1 to 24 carbon atoms and intermediates leading thereto are described.

    摘要翻译: 制备式IV化合物的方法,其中R2-R5各自为氢,卤素,具有1至36个碳原子的烷基或环烷基,具有1至36个碳原子的芳基或烷芳基,烷氧基或芳氧基 描述了具有1至30个碳原子的基团,具有1至24个碳原子的酰基和通向其的中间体。

    Method for the recovery of palladium
    2.
    发明授权
    Method for the recovery of palladium 失效
    钯的回收方法

    公开(公告)号:US4578250A

    公开(公告)日:1986-03-25

    申请号:US626956

    申请日:1984-07-02

    摘要: The present invention is directed to a method of separating and purifying palladium which is present in a solution with at least one other platinum group metal by adjusting the pH of the solution to from about 0 to 5, contacting the acidified solution with an ortho alkoxy substituted phenyl oxime of the formula: ##STR1## or a composition comprising of one or more of said compounds dissolved in an organic solvent, wherein:n is an integer of from 1 to 4;R.sub.1 is alkyl, cycloalkyl, or aralkyl; andR.sub.2 is nitro, halogen, hydrogen or substituted ro unsubstituted alkyl, alkoxy, aryloxy, cycloalkyl, aryl, aralkyl or alkaryl, wherein permissible substituents are those which are inert to process conditions; andR.sub.3 is alkyl, aryl, alkaryl, cycloalkyl or aralkyl either unsubstituted or substituted with one or more of the above referenced permissible substituents, using solvent extractions techniques, separating the aqueous phase from the organic phase containing substantially all of the palladium in association with the oxime compound, and stripping the palladium from the association with the oxime compounds in the organic phase by extraction with an aqueous ammonia solution.

    摘要翻译: 本发明涉及通过将溶液的pH调节至约0至5来分离和纯化与至少一种其它铂族金属存在于溶液中的钯的方法,使酸化溶液与邻烷氧基取代 苯基肟,其结构式如下:或包含溶解在有机溶剂中的一种或多种所述化合物的组合物,其中:n为1至4的整数; R1是烷基,环烷基或芳烷基; R 2是硝基,卤素,氢或取代的未取代的烷基,烷氧基,芳氧基,环烷基,芳基,芳烷基或烷芳基,其中允许的取代基是对工艺条件是惰性的; 并且R 3是未取代的或被一个或多个上述允许的取代基取代的烷基,芳基,烷芳基,环烷基或芳烷基,使用溶剂萃取技术,将含有基本上所有钯的有机相与 肟化合物,并通过用氨水溶液萃取,将钯与有机相中的肟化合物缔合。