Raney catalyst composition for the hydrogenation of aromatic nitro compounds, halogenated and method of using same

摘要

The present invention relates to a catalytic composition (catalyst) of the type of a raney ni, for the hydrogenation. This catalyst can be derived from an alloy ni / al / mo, in which the ratio by weight al / mo is greater than or equal to 1, preferably 2, and more preferably still is between 2 and 3. & br / this invention makes it possible to limit the problems of hydrodehalogenation and therefore, in particular, to increase the yield and the lifetime of the catalyst. & br / application to the production of halogénoaminoaromatiques useful, in particular, in the pharmaceutical field and agrochemical.