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US 8,088,351 B2Granted
Process for the preparation of ethanedinitrile
AssigneeLonza Ltd.
InventorsEllen Klegraf, Thomas Grützner, Jan Keller
Life of this patent
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Abstract
The invention relates to a process for the preparation of ethanedinitrile, by reading hydrocyanic acid in the liquid phase with nitric acid in the presence of a cupric ion catalyst.
Claims15
A process for the preparation of ethanedinitrile in liquid phase by catalytic oxidation of a reaction mixture of hydrocyanic acid in the presence of a cupric ion catalyst and an aprotic polar solvent, characterized in that nitric acid is added as the sole oxidant to the reaction mixture.
Dependencies are inferred from the claim text.