Methods for recycling catalyst compositions for aromatic ring halogenation
    5.
    发明授权
    Methods for recycling catalyst compositions for aromatic ring halogenation 失效
    用于再循环用于芳环卤化的催化剂组合物的方法

    公开(公告)号:US07863209B2

    公开(公告)日:2011-01-04

    申请号:US10870352

    申请日:2004-06-16

    摘要: A method for recovering and reusing a ring-halogenation catalyst comprises: (A) contacting an aromatic compound with chlorine or bromine in the presence of a catalyst composition, where the catalyst composition comprises at least one salt comprising a Group 4-13 metal, a lanthanide metal, or an actinide metal; and at least one organic counterion derived from an organic acid having a pKa relative to water of 0 or greater; and at least one organic sulfur compound; to form a first product mixture comprising a monochloro or a monobromo aromatic compound and a Group 4-13 metal halide, a lanthanide metal halide or an actinide metal halide; (B) separating the metal halide from the first product mixture; and (C) contacting at least a portion of the metal halide and an aromatic compound with chlorine or bromine, and at least one organic sulfur compound; to form a second product mixture comprising a monochloro or a monobromo aromatic compound and a Group 4-13 metal halide, a lanthanide metal halide or an actinide metal halide.ving a pKa relative to water of 0 or greater; and at least one organic sulfur compound.

    摘要翻译: 回收和再利用环卤化催化剂的方法包括:(A)在催化剂组合物存在下使芳族化合物与氯或溴接触,其中催化剂组合物包含至少一种包含第4-13族金属的盐, 镧系金属或锕系金属; 以及衍生自相对于水的pKa为0以上的有机酸的至少一种有机抗衡离子; 和至少一种有机硫化合物; 以形成包含一氯或一溴芳族化合物和第4-13族金属卤化物,镧系金属卤化物或锕系金属卤化物的第一产物混合物; (B)从第一产物混合物中分离金属卤化物; 和(C)使金属卤化物和芳族化合物的至少一部分与氯或溴接触,和至少一种有机硫化合物; 形成第二产物混合物,其包含一氯或一溴芳族化合物和第4-13族金属卤化物,镧系元素金属卤化物或锕系金属卤化物,相对于0或更大的水,得到pKa; 和至少一种有机硫化合物。

    OXIDATION CATALYST FOR MALEIC ANHYDRIDE PRODUCTION
    6.
    发明申请
    OXIDATION CATALYST FOR MALEIC ANHYDRIDE PRODUCTION 有权
    用于非生产氢氧化物生产的氧化催化剂

    公开(公告)号:US20100210858A1

    公开(公告)日:2010-08-19

    申请号:US12682494

    申请日:2008-10-22

    申请人: Zhiping Shan

    发明人: Zhiping Shan

    摘要: A process for preparing a catalyst by selecting an active catalyst and contacting the active catalyst with one or more fluids containing an organic solvent or mixture of organic solvents. In one embodiment, each organic solvent has a dielectric constant within a range of about 5 to about 55 when measured at a temperature of 20° C. to 25° C. The catalyst thus prepared may be used in a process for preparing maleic anhydride.

    摘要翻译: 通过选择活性催化剂并使活性催化剂与一种或多种含有机溶剂或有机溶剂混合物的流体接触来制备催化剂的方法。 在一个实施方案中,当在20℃至25℃的温度下测量时,每种有机溶剂的介电常数在约5至约55的范围内。如此制备的催化剂可用于制备马来酸酐的方法。

    Methods for recycling catalyst compositions for aromatic ring halogenation
    9.
    发明申请
    Methods for recycling catalyst compositions for aromatic ring halogenation 失效
    用于再循环用于芳环卤化的催化剂组合物的方法

    公开(公告)号:US20050283034A1

    公开(公告)日:2005-12-22

    申请号:US10870352

    申请日:2004-06-16

    摘要: A method for recovering and reusing a ring-halogenation catalyst comprises: (A) contacting an aromatic compound with chlorine or bromine in the presence of a catalyst composition, where the catalyst composition comprises at least one salt comprising a Group 4-13 metal, a lanthanide metal, or an actinide metal; and at least one organic counterion derived from an organic acid having a pKa relative to water of 0 or greater; and at least one organic sulfur compound; to form a first product mixture comprising a monochloro or a monobromo aromatic compound and a Group 4-13 metal halide, a lanthanide metal halide or an actinide metal halide; (B) separating the metal halide from the first product mixture; and (C) contacting at least a portion of the metal halide and an aromatic compound with chlorine or bromine, and at least one organic sulfur compound; to form a second product mixture comprising a monochloro or a monobromo aromatic compound and a Group 4-13 metal halide, a lanthanide metal halide or an actinide metal halide.ving a pKa relative to water of 0 or greater; and at least one organic sulfur compound.

    摘要翻译: 回收和再利用环卤化催化剂的方法包括:(A)在催化剂组合物存在下使芳族化合物与氯或溴接触,其中催化剂组合物包含至少一种包含第4-13族金属的盐, 镧系金属或锕系金属; 以及衍生自相对于水的pKa为0以上的有机酸的至少一种有机抗衡离子; 和至少一种有机硫化合物; 以形成包含一氯或一溴芳族化合物和第4-13族金属卤化物,镧系金属卤化物或锕系金属卤化物的第一产物混合物; (B)从第一产物混合物中分离金属卤化物; 和(C)使金属卤化物和芳族化合物的至少一部分与氯或溴接触,和至少一种有机硫化合物; 形成第二产物混合物,其包含一氯或一溴芳族化合物和第4-13族金属卤化物,镧系元素金属卤化物或锕系金属卤化物,相对于0或更大的水,得到pKa; 和至少一种有机硫化合物。