Tetraalykylammonium polyoxoanionic oxidation catalysts
    2.
    发明授权
    Tetraalykylammonium polyoxoanionic oxidation catalysts 失效
    四亚烷基铵聚氧乙烯氧化催化剂

    公开(公告)号:US5817881A

    公开(公告)日:1998-10-06

    申请号:US902931

    申请日:1997-07-30

    CPC classification number: C07C29/50 B01J23/881 B01J27/188 C07C45/33

    Abstract: Alkanes are catalytically oxidized in air or oxygen using iron-substituted polyoxoanions (POAs) of the formula: H.sub.e-z �(n-C.sub.4 H.sub.9).sub.4 N!.sub.z (XM.sub.11 M'O.sub.39).sup.-eThe M' (e.g., iron(III)/iron(II)) reduction potential of the POAs is affected by selection of the central atom X and the framework metal M, and by the number of tetrabutyl-ammonium groups. Decreased Fe(III)/Fe(II) reduction potential has been found to correlate to increased oxidation activity.

    Abstract translation: 烷烃在空气或​​氧气中使用下式的铁取代的聚氧阴离子(POA)催化氧化:He-z [(n-C4H9)4N] z(XM11M'O39)-e M'(例如铁(III)/ 铁(II))还原电位受中心原子X和骨架金属M的选择以及四丁基铵基团的数量的影响。 已经发现Fe(III)/ Fe(II)还原电位的降低与增加的氧化活性相关。

    Haloporphyrins and their preparation and use as catalysts
    4.
    发明授权
    Haloporphyrins and their preparation and use as catalysts 失效
    卤卟啉及其制备和用作催化剂

    公开(公告)号:US5663328A

    公开(公告)日:1997-09-02

    申请号:US672202

    申请日:1996-06-27

    Abstract: The invention provides novel catalyst compositions, useful in the oxidation of hydrocarbons with air or oxygen to form hydroxy-group containing compounds and in the decomposition of hydroperoxides to form hydroxy-group containing compounds. The catalysts comprise transition metal complexes of a porphyrin ring having 1 to 12 halogen substituents on the porphyrin ring, at least one of said halogens being in a meso position and/or the catalyst containing no aryl group in a meso position. The compositions are prepared by halogenating a transition metal complex of a porphyrin. In one embodiment, a complex of a porphyrin with a metal whose porphyrin complexes are not active for oxidation of hydrocarbons is halogenated, thereby to obtain a haloporphyrin complex of that metal, the metal is removed from the haloporphyrin complex to obtain the free base form of the haloporphyrin, and a metal such as iron whose porphyrin complexes are active for oxidation of hydrocarbons and for the decomposition of alkyl hydroperoxides is complexed with the free base to obtain an active catalyst for oxidation of hydrocarbons and decomposition of alkyl hydroperoxides.

    Abstract translation: 本发明提供了新的催化剂组合物,其可用于用空气或氧气氧化烃以形成含羟基化合物,并在氢过氧化物的分解中形成含羟基化合物。 催化剂包括在卟啉环上具有1至12个卤素取代基的卟啉环的过渡金属络合物,所述卤素中的至少一个在中间位置和/或在中间位置不含芳基的催化剂。 通过卤化卟啉的过渡金属络合物制备组合物。 在一个实施方案中,卟啉与卟啉络合物对于烃的氧化不起作用的金属的络合物被卤化,从而获得该金属的卤卟啉络合物,从卤卟啉络合物中除去金属,得到游离碱形式 卤卟啉和卟啉配合物对烃的氧化和烷基氢过氧化物的分解具有活性的金属如铁,与游离碱络合,得到烃的氧化和烷基氢过氧化物的分解的活性催化剂。

    Production of hydroquinones
    8.
    发明授权
    Production of hydroquinones 失效
    生产氢醌

    公开(公告)号:US4482756A

    公开(公告)日:1984-11-13

    申请号:US511111

    申请日:1983-07-05

    CPC classification number: C07C46/08 C07C37/07

    Abstract: A process for making a hydroquinone from phenol or substituted phenol wherein the phenol is oxidized in the presence of a copper catalyst to a p-benzoquinone compound and the p-benzoquinone compound is directly hydrogenated without additional catalyst to the corresponding hydroquinone.

    Abstract translation: 一种由苯酚或取代苯酚制备氢醌的方法,其中苯酚在铜催化剂存在下被氧化成对苯醌化合物,对苯醌化合物直接氢化而不需要另外的催化剂加到相应的氢醌上。

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