Method for preparing hydrazine hydrate

Details Method for preparing hydrazine hydrate Method for preparing hydrazine hydrate

C - Chemistry, Metallurgy

01

B

C01B 21/16 (2006.01) C07C 45/42 (2006.01)

Patent

CA 2331060

The invention concerns a method for making hydrazine hydrate which consists in hydrolyzing methyl ethyl ketone azine to obtain hydrazine hydrate and methyl ethyl ketone, characterised in that it consists in purging heterocyclic compounds of the pyrazoline family to prevent coloration of the hydrazine hydrate.

La présente invention concerne un procédé de préparation d'hydrate d'hydrazine dans lequel on hydrolyse de la méthyl éthyl cétone azine pour obtenir de l'hydrate d'hydrazine et de la méthyl éthyl cétone, caractérisé en ce qu'on purge des hétérocycles de la famille de la pyrazoline en quantité suffisante pour éviter la coloration de l'hydrate d'hydrazine.

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