Catalyst and a benzene hydrogenation process using said catalyst
    1.
    发明授权
    Catalyst and a benzene hydrogenation process using said catalyst 失效
    催化剂和使用所述催化剂的苯加氢方法

    公开(公告)号:US5668293A

    公开(公告)日:1997-09-16

    申请号:US392359

    申请日:1995-02-16

    摘要: The invention concerns a process and catalyst for the production of cyclohexane by hydrogenation of benzene, comprising at least the two following steps: a) gradually introducing the feed of benzene for hydrogenation and a hydrogen-rich gas into a reaction zone containing a cyclohexane-rich liquid and a nickel-based catalyst in colloidal suspension and recovering a gaseous phase containing cyclohexane, hydrogen and benzene; b) introducing the gaseous phase into a reactor operating under hydrogenation conditions and containing at least one fixed bed of a solid nickel-based hydrogenation catalyst, wherein the nickel-based catalyst used in step a) is a product which results from the reduction, by at least one trialkylaluminium compound, of a solution of at least one nickel carboxylate and at least one sodium carboxylate in solution, the Ni:Na molar ratio being between 2:1 and 1000:1 in a hydrocarbon or a hydrocarbon mixture.

    摘要翻译: 本发明涉及通过苯氢化生产环己烷的方法和催化剂,其包括至少两个以下步骤:a)逐步将苯进料氢化和富氢气体进入含有环己烷的反应区 液体和镍基催化剂,并回收含有环己烷,氢和苯的气相; b)将气相引入到在氢化条件下操作并含有至少一个固体镍基加氢催化剂固定床的反应器中,其中步骤a)中使用的镍基催化剂是由还原产生的产物, 至少一种三烷基铝化合物,至少一种羧酸镍和至少一种羧酸钠在溶液中的溶液,Ni:Na摩尔比在烃或烃混合物中的2:1至1000:1之间。

    Process for producing, jointly or otherwise, monoalkyl aromatic compounds, dialkyl aromatic compounds and trialkyl aromatic compounds
    2.
    发明授权
    Process for producing, jointly or otherwise, monoalkyl aromatic compounds, dialkyl aromatic compounds and trialkyl aromatic compounds 有权
    单烷基芳族化合物,二烷基芳族化合物和三烷基芳族化合物共同或以其他方式生产的方法

    公开(公告)号:US06627781B1

    公开(公告)日:2003-09-30

    申请号:US09671295

    申请日:2000-09-27

    IPC分类号: C07C264

    摘要: Process for the production of at least one compound that is selected from among monoalkyl aromatic compounds, dialkyl aromatic compounds and trialkyl aromatic compounds by alkylation or transalkylation of an aromatic compound by at least one alkylating agent that is selected from among the olefins, whereby the process is characterized in that it is carried out in one or two stages, involving two reaction zones in series, whereby one of these two zones can be switched off so as to be able, depending on whether or not one of the zones is switched off, to meet the demand either of the three types of mono, di- and trialkyl aromatic compounds, or two of these types or a single one of the types of mono- or di- or trialkyl aromatic compounds.

    摘要翻译: 通过至少一种选自烯烃的烷基化剂烷基化或烷基化芳族化合物来生产至少一种选自单烷基芳族化合物,二烷基芳族化合物和三烷基芳族化合物的化合物的方法,其中该方法 其特征在于它在一个或两个阶段中进行,包括串联的两个反应区域,由此可以关闭这两个区域中的一个,以便能够根据其中一个区域是否关闭, 以满足三种类型的单,二和三烷基芳族化合物或这些类型中的两种或单 - 或二 - 或三烷基芳族化合物的单一类型的需求。