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    • 5. 发明申请
    • METHOD FOR RE-MANUFACTURING A COBALT/MANGANESE/BROMINE CATALYST FROM RESIDUE CONTAINING USED CATALYST
    • 从含有催化剂的残留物重新制造钴/锰/溴催化剂的方法
    • WO99061186A1
    • 1999-12-02
    • PCT/US1999/011447
    • 1999-05-24
    • B01J23/94B01J38/62B01J38/68C22B7/00C22B47/00B22F9/06
    • B01J23/94B01J38/62B01J38/68C22B7/009C22B47/0009Y02P10/214
    • A process for recovering a solution of Co and Mn acetates and other valuable components of a waste residue of used catalyst discharged from a plant for the liquid-phase, homogeneously catalyzed oxidation of alkylaromatic compounds, to produce polycarboxylic aromatic acids. The residue is pyrolized in a reaction zone provided forming molten metal in an electric arc or molten metal furnace under conditions which convert essentially all carbon in the residue mainly to CO, hydrogen and compounds vaporized in an effluent from the reaction zone. The effluent is passed through a liquid-gas-contacting means to yield a quench or scrubber stream. The residue may also be sludged from a pond in which the residue is stored. The alloy recovered is atomized to form a powder metal which is then digested in acetic acid, and/or aqueous hydrogen bromide, and/or mixtures thereof with the quench or scrubber stream, to form the corresponding salts. In addition to Mn and bromine (Br) values from the effluent, these values may also be recovered from the slag, if desired. Substantially pure Co may be recovered and exported, particularly if earthy residue from a sludge pond is processed to benefit the environment.
    • 回收由植物排出的用于催化烷基芳族化合物的液相均匀催化氧化的用过的催化剂废弃物的Co和Mn乙酸盐和其它有价值成分的溶液的方法,以制备多元羧酸芳族酸。 残余物在设置在电弧或熔融金属炉中形成熔融金属的反应区中,将残余物中基本上所有的碳主要转化为CO,氢和在来自反应区的流出物中蒸发的化合物的条件下进行热解。 流出物通过液体 - 气体接触装置以产生骤冷或洗涤剂流。 残留物也可能从储存残留物的池塘中排出。 回收的合金被雾化以形成粉末金属,然后将其在乙酸和/或溴化氢水溶液中和/或其与骤冷或洗涤剂流的混合物中消化,形成相应的盐。 除了来自流出物的Mn和溴(Br)值之外,如果需要,这些值也可以从渣中回收。 基本上纯的Co可以回收和出口,特别是如果来自污泥池的泥土残渣被处理以使环境受益。