阅读说明：本技术 将硝基芳族化合物直接羰基化为异氰酸酯的非均相催化剂 (Heterogeneous catalyst for the direct carbonylation of nitroaromatics to isocyanates ) 是由 A·库舍尔 C·利赞达拉 S·A·顺克 S·泰特尔巴赫 J·罗特尔 J·贝克特尔 N·S 于 2018-04-04 设计创作，主要内容包括：一种制备芳族异氰酸酯的方法,其通过在催化剂的存在下使硝基芳族化合物与一氧化碳反应而将硝基芳族化合物直接羰基化进行,其特征在于所述催化剂包含多金属材料,所述多金属材料包含一种或多种通式A<Sub>x</Sub>B<Sub>y</Sub>的二元金属间相,其中：A为一种或多种选自Ni、Ru、Rh、Pd、Ir、Pt和Ag的元素,B为一种或多种选自Sn、Sb、Pb、Zn、Ga、In、Ge和As的元素,x在0.1-10的范围内,y在0.1-10的范围内。(A process for preparing aromatic isocyanates by direct carbonylation of nitroaromatics by reaction with carbon monoxide in the presence of a catalyst, characterized in that the catalyst comprises a multimetallic material comprising one or more compounds of the general formula A x B y Wherein: a is one or more elements selected from Ni, Ru, Rh, Pd, Ir, Pt and Ag, B is one or more elements selected from Sn, Sb, Pb, Zn, Ga, In, Ge and As, x is In the range of 0.1 to 10,y is in the range of 0.1-10.)