Patents
An improved process for the production of concentrated aqueous solutions of hydrazine hydrate by ketazine method is described. In particular, it describes preparation of hydrazine hydrate by ketazine method using 50-70% hydrogen peroxide, recyclable solid acetamide and ammonium acetate activator for ketazine formation and catalyst free hydrolysis of ketazine to give aqueous solutions of hydrazine hydrate in energy efficient manner.