发明授权
US6075167A Method for preparing cycloaliphatic diamines from aromatic diamines 有权
从芳族二胺制备脂环族二胺的方法

Method for preparing cycloaliphatic diamines from aromatic diamines
摘要:
This invention relates to a method for preparing cycloaliphatic diamines by hydrogenating aromatic diamines in the presence of a supported ruthenium catalyst and a metal nitrite as a catalyst promoter to increase the rate of the hydrogenation reaction and decrease the amount of higher boiler by-products.
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