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Issue
Korean Journal of Chemical Engineering,
Vol.34, No.6, 1693-1698, 2017
Comparative evaluation of purity of green energetic material (ammonium dinitramide) depending on refining method
Kim WR, Kwon YJ, Hwang SY, Jo YM
Although the solid propellant, ammonium dinitramide (ADN, NH4N(NO2)2) is safe and thermally stable, it requires high purity for practical commercial applications. Even a small amount of impurities in ADN can create negative effects, including catalyst poisoning and thruster nozzle cloggings when it is used as a liquid propellant. Thus, we explored several purification processes for the precipitated ADN particles, such as repetition extraction, adsorption by activated carbons, and low-temperature extraction. These purifying methods help to improve the chemical purity as evaluated by FTIR, UV-vis, DSC, and IC analyses. Among the purification processes, adsorption was found to be the best method, showing a final purity of 99.768% based on relative quantification by ion chromatography.
Keywords: Green Propellant; Ammonium Dinitramide; Purification; Adsorption
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[Cited By]
  1. Jang HG, Sul MJ, Shim JS, Park YC, Cho SJ, Journal of Industrial and Engineering Chemistry, 63, 237, 2018
  2. Kim WR, Park MJ, Park YS, Kwon YJ, Jo YM, Journal of Industrial and Engineering Chemistry, 68, 153, 2018
  3. Kim WR, Park MJ, Kim SH, Jeon JK, Jo YM, Applied Chemistry for Engineering, 30(5), 591, 2019
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