Rhone-Poulenc Chimie

Rhone-Poulenc Agrochimie

Rhone-Poulenc Sante

Pierre Fouilloux

Georges Cordier

Philippe Marion

Jean-Michel Grosselin

Nathalie Laurain

Jean-Pierre Damon

Jean-Francis Spindler

Michele Besson

Jacqueline Masson

Catalyst for the hydrogenation of nitriles to amines, preparation

Process for the preparation of a catalyst for the hydrogenation of

Process for the catalytic hydrogenation of nitriles to amines in the

Halonitroaromatic compounds, e.g., 3-chloro-4-fluoronitrobenzene, are selectively hydrogenated into the corresponding haloaromatic amines, in the essential absence of hydrodehalogenation, by reacting same with hydrogen in the presence of a catalytically effective amount of a novel Raney-type catalyst composition consisting essentially of an alloy of nickel, aluminum and molybdenum, Ni/Al/Mo, the Al/Mo ratio by weight thereof being equal to or greater than 1.

Raney-type catalysts for the hydrogenation of halonitroaromatic compounds

This invention relates to a process for preparation of a platinum-cobalt bi-metallic catalyst having an alloy structure.

Process for the preparation of a catalyst

Unsaturated alcohols are prepared by hydrogenation of the corresponding carbonyl compounds in the presence of a platinum-cobalt bi-metallic catalyst having an alloy structure.

Process for the preparation of unsaturated alcohols

Process for the selective preparation of metachloroanilines. It is carried out by the hydrodechlorination of polychloroanilines or polychloronitrobenzenes with hydrogen, in the liquid phase and in an acid medium, under the action of heat and under pressure, in the presence of a noble metal used in association with a heavy metal. These meta-chloroanilines are intermediates especially for active plant-protection substances.

Process for the selective preparation of meta-chloroanilines

Process for the selective preparation of meta-chloroanilines. It is carried out by the hydrodechlorination of polychloroanilines or polychloronitrobenzenes with hydrogen, in the liquid phase, under the action of heat, at atmospheric pressure or under pressure, in the presence of a noble metal, in an anhydrous organic medium and in the presence of a Lewis acid. These meta-chloroanilines are intermediates especially for active plant-protection substances.

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Caluire et Cuire, France

Pierre Fouilloux