The present invention relates to a process for the selective decomposition of
hydrazine in a hydrazine/substituted hydrazine/water mixture. A catalyst chosen
from the group consisting of nickel supported on silica/alumina, the nickel-nickel
oxide mixture supported on silica/alumina and rhodium supported on carbon is introduced
into this mixture and then the mixture is heated at a temperature of between 60
C. and 120 C.
