Compagnie Generale Des Matieres Nucleaires

Pietro Bilardello

Renaud Pontier

Nicolas Durupt

A gas siphon type reactor () is used to carry out a three phase chemical reaction under pressure, such as the reduction of uranyl nitrate to uranous nitrate by hydrogen, in the presence of a catalyst made up of platinum on a silica carrier. The control of the pressure in the reactor () is provided by regulating the liquid and gas flow rates from separator (), into which the liquid and the gas leaving the reactor () are routed. The liquid in the reactor () is tapped from a lateral branch pipe () fitted with a filter () and emerging in the upper area (), behind a profiled wall ().

Installation for carrying out a three phase chemical reaction under pressure

A gas siphon type reactor ( ) is used to carry out a three phase chemical reaction under pressure, such as the reduction of uranyl nitrate to uranous nitrate by hydrogen, in the presence of a catalyst made up of platinum on a silica carrier. The control of the pressure in the reactor ( ) is provided by regulating the liquid and gas flow rates from a high pressure separator ( ), into which the liquid and the gas leaving the reactor ( ) are routed. The liquid in the reactor ( ) is tapped from a lateral branch pipe ( ) fitted with a filter ( ) and emerging in the upper area ( ), behind a profiled wall ( ).

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Vanves, France

Pietro Bilardello