Scalable synthesis of high purities ammonium dinitramide and its decomposition characteristics

Publication date: 25 July 2018Source: Journal of Industrial and Engineering Chemistry, Volume 63Author(s): Hoi-Gu Jang, Min Jung Sul, Jung Seob Shim, Young Chul Park, Sung June ChoAbstractScalable synthesis of high purities ammonium dinitramide (ADN), 98.2% or more has been performed through conversion of potassium dinitramide (KDN) into ammonium dinitramide using guanylurea dinitramide (GUDN) as a precursor, which can be scalable up to a few hundred grams. The obtained ADN and corresponding liquid ADN blended with fuel was subject to the decomposition reaction with and without iridium catalyst. The result of the decomposition reaction suggested that the blending of methanol with ADN gave a high performance. It has been shown that the presence of ammonium hydroxide in the blend maintained pH around 10 and also stabilized the ADN solution for more than 20 day at 60 °C.Graphical abstract

Source: Journal of Industrial and Engineering Chemistry - July 11, 2018 Category: Chemistry Source Type: research