Oxidative ammination of benzene to aniline using molecular oxygen as the
terminal oxidant
    1.
    发明授权
    Oxidative ammination of benzene to aniline using molecular oxygen as the terminal oxidant 失效
    使用分子氧作为终端氧化剂将苯氧化成苯胺

    公开(公告)号:US5861536A

    公开(公告)日:1999-01-19

    申请号:US904169

    申请日:1997-07-31

    CPC分类号: C07C209/02

    摘要: The present invention comprises a process for catalytic oxidative ammination of aromatic hydrocarbons which comprising contacting aromatic feedstock with oxidant, such as molecular oxygen, under suitable reaction conditions, in the presence of a catalyst comprising three essential components: a support; transition metal; and a mono- or binucleating ligand. In one embodiment of the invention the ligand comprises at least one nitro or nitroso group. In another embodiment, the ligand comprises a multidentate, chelating binuclear compound. The process is particularly suited, for example, to the one-step conversion of benzene to aniline.

    摘要翻译: 本发明包括芳族烃的催化氧化胺化方法,其包括在合适的反应条件下,在包含三种必需成分的催化剂存在下使芳族原料与氧化剂如分子氧接触:载体; 过渡金属; 和单核或双核配体。 在本发明的一个实施方案中,配体包含至少一个硝基或亚硝基。 在另一个实施方案中,配体包含多齿螯合双核化合物。 该方法特别适用于例如苯到苯胺的一步转化。

    Catalytic oxidation of light alkanes in presence of a base
    2.
    发明授权
    Catalytic oxidation of light alkanes in presence of a base 失效
    在碱存在下催化氧化轻链烷烃

    公开(公告)号:US5723697A

    公开(公告)日:1998-03-03

    申请号:US580918

    申请日:1995-12-29

    CPC分类号: C07C29/50

    摘要: The presence of a base in the reaction mixture in a metal-ligand catalyzed partial oxidation of alkanes results in sustained catalyst activity, and in greater percent conversion as compared with oxidation in the absence of base, while maintaining satisfactory selectivity for the desired oxidation, for example the oxidation of isobutane to isobutanol.

    摘要翻译: 在金属 - 配体催化的烷烃部分氧化中,反应混合物中碱的存在导致持续的催化剂活性,并且在不存在碱的情况下与氧化相比转化率更高百分比,同时保持对所需氧化的令人满意的选择性, 例如异丁烷氧化成异丁醇。

    Tetraalykylammonium polyoxoanionic oxidation catalysts
    6.
    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

    摘要: 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.

    摘要翻译: 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
    8.
    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

    摘要: 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.

    摘要翻译: 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。

    Solid superacid catalysts comprising platinum metal
    9.
    发明授权
    Solid superacid catalysts comprising platinum metal 失效
    包含铂金属的固体超强酸催化剂

    公开(公告)号:US5629257A

    公开(公告)日:1997-05-13

    申请号:US184425

    申请日:1994-01-21

    IPC分类号: B01J27/053 B01J27/02

    CPC分类号: B01J27/053

    摘要: A sulfated solid catalyst is provided which comprises (1) oxide or hydroxide of Group III or Group IV element, e.g. zirconium, and (2) a first metal comprising a metal or combination of metals selected from the group consisting of platinum, palladium, nickel, platinum and rhenium, and platinum and tin. The catalyst may further comprise (3) a second metal selected from the group consisting of Group VIII elements, e.g. iron. One embodiment of the invention further comprises (4) a third metal selected from the group consisting of Group V, VI and VII elements, e.g. manganese. The catalyst of the invention is useful for the isomerization of normal alkanes having 4 to 40 carbon atoms per molecule, for the naphtha upgrading of a hydrocarbon feedstock and for the hydrocracking of a hydrocarbon feedstock.

    摘要翻译: 提供硫酸化固体催化剂,其包含(1)III族或IV族元素的氧化物或氢氧化物,例如 锆,和(2)包含选自铂,钯,镍,铂和铼的金属或金属组合的第一金属,以及铂和锡。 催化剂还可以包含(3)选自VIII族元素的第二种金属,例如。 铁。 本发明的一个实施方案还包括(4)选自第V,VI和VII族元素的第三种金属,例如。 锰。 本发明的催化剂可用于每分子具有4至40个碳原子的正构烷烃异构化,用于烃原料的石脑油升级和烃原料的加氢裂化。