Hydroalkylation Catalyst and Process for Use Thereof
    2.
    发明申请
    Hydroalkylation Catalyst and Process for Use Thereof 有权
    氢化烷基化催化剂及其使用方法

    公开(公告)号:US20140378697A1

    公开(公告)日:2014-12-25

    申请号:US14314557

    申请日:2014-06-25

    Abstract: This invention relates to process for producing biphenyl esters, the process comprising: (a) contacting a feed comprising toluene, xylene or mixtures thereof with hydrogen in the presence of a hydroalkylation catalyst to produce a hydroalkylation reaction product comprising (methylcyclohexyl)toluene, wherein the hydroalkylation catalyst comprises: 1) binder present at 40 wt % or less (based upon weight of final catalyst composition), 2) a hydrogenation component present at 0.2 wt % or less (based upon weight of final catalyst composition), and 3) an acidic component comprising a molecular sieve having a twelve membered (or larger) ring pore opening, channel or pocket and a largest pore dimension of 6.0 angstroms or more present at 60 wt % or more, (based upon weight of final catalyst composition); (b) dehydrogenating the hydroalkylation reaction product using a dehydrogenation catalyst to produce a dehydrogenation reaction product comprising a mixture of methyl-substituted biphenyl compounds; (c) contacting at the dehydrogenation reaction product with an oxidizing gas to convert the methyl-substituted biphenyl compounds to biphenyl carboxylic acids; and (d) reacting the biphenyl carboxylic acids with one or more C1 to C14 alcohols to produce biphenyl esters.

    Abstract translation: 本发明涉及生产联苯酯的方法,该方法包括:(a)在加氢烷基化催化剂存在下使包含甲苯,二甲苯或其混合物的进料与氢气接触以产生包含(甲基环己基)甲苯的加氢烷基化反应产物,其中 加氢烷基化催化剂包括:1)以40重量%或更少(基于最终催化剂组合物的重量)存在的粘合剂,2)以0.2重量%或更少(基于最终催化剂组合物的重量)存在的氢化组分,和3) 酸性组分包含具有十二元(或更大)环孔开口,通道或口袋和最大孔尺寸为6.0埃或更大的分子筛,分子筛为60重量%或更多(基于最终催化剂组合物的重量); (b)使用脱氢催化剂使加氢烷基化反应产物脱氢以产生包含甲基取代的联苯化合物的混合物的脱氢反应产物; (c)在脱氢反应产物与氧化气体接触以将甲基取代的联苯化合物转化为联苯羧酸; 和(d)使联苯羧酸与一种或多种C1至C14醇反应以制备联苯酯。

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