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Continuous Amination of Propanediols in Supercritical Ammonia
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1999
Year
Chemical EngineeringEngineeringContinuous AminationHeterogeneous CatalysisDegredation ReactionsOrganic ChemistryCatalysisAmmoniaChemistryNear Critical RegionsNi-catalyzed SynthesisCatalytic ProcessMolecular CatalysisChemical KineticsCatalytic SynthesisSupercritical Co2
Enhancements in selectivity by a factor of 4 to 18 were observed in the near critical regions of ammonia during the Co- and Ni-catalyzed synthesis of 1,3-diaminopropanes. These results are attributed to the higher concentration of ammonia at the surface of the catalyst, which favors the amination and suppresses degredation reactions.