Nickel–Magnesia Catalysts: An Alternative for the Hydrogenation of 1,6-Hexanedinitrile
Nickel–Magnesia Catalysts: An Alternative for the Hydrogenation of 1,6-Hexanedinitrile
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DOI：
10.1006/jcat.2002.3617
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发表时间：
2002-07
影响因子：
7.3
通讯作者：
M. Serra;P. Salagre;Y. Cesteros;F. Medina;J. Sueiras
中科院分区：
文献类型：
--
作者：
M. Serra;P. Salagre;Y. Cesteros;F. Medina;J. Sueiras
摘要合成了两种镍-镁体系催化剂，并对催化剂进行了表征，用于1，6-己二腈（己二腈）气相加氢反应。将活性结果与商业Raney-Ni获得的结果进行比较。所有三种催化剂都显示出对1，6-己二胺的高选择性，对于由NiO-MgO溶液制成的Ni-MgO催化剂，总转化率最高为96%。然而，只有Ni-MgO催化剂显示出对6-氨基己腈的高选择性（分别为83和77%）和高转化率（分别为87和85%）。较高的6-氨基己腈选择性可能与Ni-MgO催化剂中八面体微晶的存在有关。
Abstract Two Ni–MgO systems were synthesized and characterized as nickel catalysts for the hydrogenation of 1,6-hexanedinitrile (adiponitrile) in the gas phase. The activity results were compared with those obtained for a commercial Raney–Ni. All three catalysts showed high selectivity to 1,6-hexanediamine, for a total conversion with a maximum of 96% for the Ni–MgO catalyst, which was made from a NiO–MgO solution. However, only Ni–MgO catalysts showed high selectivity to 6-aminohexanenitrile (83 and 77%, respectively) and high conversion (87 and 85%, respectively). The higher selectivity to 6-aminohexanenitrile could be related to the presence of octahedral crystallites in the Ni–MgO catalysts.