Method for recovering cobalt/manganese/bromine values from residue
containing used catalyst
    131.
    发明授权
    Method for recovering cobalt/manganese/bromine values from residue containing used catalyst 失效
    从含有残留物的催化剂中回收钴/锰/溴值的方法

    公开(公告)号:US5759229A

    公开(公告)日:1998-06-02

    申请号:US688194

    申请日:1996-07-29

    申请人: David Feitler

    发明人: David Feitler

    摘要: A process for recovering valuable components of a residue from a stream of used catalyst, discharged from a plant for the liquid-phase, homogeneously catalyzed oxidation of alkylaromatic compounds under pressure, to produce polycarboxylic aromatic acids. The residue containing mainly cobalt (Co) and manganese (Mn) compounds is injected into a molten metal bath in combination with enough oxygen gas to convert essentially all carbon in the residue mainly to CO. The residue may also be sludge from a pond in which the residue is stored. The Co content of the molten metal is determined by how much of the Mn in the residue is to be rejected from the molten metal. The Mn rejected is distributed between a slag overlying the molten metal and the effluent which leaves the bath. In the slag, the Mn is trapped as manganese oxide (MnO); in the effluent Mn leaves as manganese dibromide (MnBr.sub.2). The alloy recovered is atomized to form a powder metal which is then reacted with acetic acid and hydrogen bromide to form the corresponding salts. Mn and bromine (Br) values from the slag and from the effluent are also recovered. Substantially pure Co may be recovered and exported, particularly if earthy residue from a sludge pond is processed to benefit the environment.

    摘要翻译: 从用于液相的植物排出的用过的催化剂流中回收残余物的有价值组分的方法,在压力下均匀催化烷基芳族化合物的氧化,以产生多元羧酸芳族酸。 主要包含钴(Co)和锰(Mn)化合物的残渣与足够的氧气一起注入熔融金属浴中,将残余物中的所有碳基本上主要转化为CO,残渣也可以是来自池塘的污泥 残留物被储存。 熔融金属的Co含量由残留物中的Mn多少从熔融金属中排出来确定。 Mn排出物分布在熔融金属上的熔渣和离开熔池的流出物之间。 在炉渣中,锰被氧化为锰(MnO); 在锰废水中Mn二溴化锰(MnBr2)。 回收的合金被雾化以形成粉末金属,然后与乙酸和溴化氢反应形成相应的盐。 来自渣和流出物的Mn和溴(Br)值也被回收。 大部分纯Co可以回收和出口,特别是如果来自污泥池的泥土残留物被处理以使环境受益。

    Catalyst treatment and process for using treated catalyst
    134.
    发明授权
    Catalyst treatment and process for using treated catalyst 失效
    催化剂处理和使用处理催化剂的方法

    公开(公告)号:US4824814A

    公开(公告)日:1989-04-25

    申请号:US98911

    申请日:1987-09-21

    摘要: A process for treating a catalyst useful to promote the conversion of a substantially hydrocarbon feedstock containing at least one first metal at least a portion of which is deposited on the catalyst forming a first metal-containing catalyst, which process comprises:contacting the catalyst with at least one component of at least one second metal selected from the group consisting of antimony, tin, gallium, indium, zinc, tellurium and mixtures thereof to increase the second metal content of the catalyst, anddemetallizing the first metal-containing catalyst to provide a demetallized catalyst having a reduced first metal content.

    摘要翻译: 一种用于处理催化剂的方法,所述催化剂用于促进包含至少一种第一金属的基本上烃原料的转化,其中至少一种第一金属的至少一部分沉积在形成第一含金属催化剂的催化剂上,该方法包括:使催化剂与 选自锑,锡,镓,铟,锌,碲及其混合物中的至少一种第二金属的至少一种组分以增加催化剂的第二金属含量,并使第一含金属催化剂脱金属化,以提供 脱金属催化剂具有降低的第一金属含量。