Component Loss Analysis of HTPB Propellant after High Pressure Waterjet Clearing

Abstract:

The content of AP and Al in waste propellant and waste water produced by high pressure waterjet clearing HTPB propellant were determined according to some relative standard methods. The results show that the content of AP in the waste propellant with diameter less than 3mm drops from 69.5% to 35.28%, while the loss of Al and adhesives is slight; in the waste propellant with diameter larger than 3mm, the component content is close to normal charge with the increase in radial depth; the content of AP and Al in the waste water are 8368mg/L and 0.157mg/L respectively. Based on above results, the proper treatments of the wastes were chosen: the waste propellant can be used as auxiliary fuel for boilers after leaching AP out with the waste water; the waste water should be treated with biological methods to remove ammonia nitrogen and perchlorate in it.

• Periodical: Advanced Materials Research (Volumes 864-867)
• Pages: 1890-1893
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.864-867.1890
• Online since: December 2013
• Authors: Zuo Ming Zhu, Xin Gao, Ai Yu, Xuan Jun Wang*, Qi Long Han, Hu Cui
• Keywords: Component Loss, HTPB Propellant, Waterjet Clearing

References

[1] CHENG Wen, LIU Yujie. Application of waterjet technology in the development and production of rocket engine [J]. Chemical Cleaning, 1999, 15(5): 39-43, 50 (in Chinese).

[2] ZHANG Jingchun. Solid propellant chemistry and technology [M]. Changsha: National University of Defense Technology Press, 1987 (in Chinese).

[3] WANG Jun, LIN Xiangyang, LIU Aizhuan, et al. Extraction technology of AP from expired composite solid propellants [J]. Chinese Journal of Energetic Materials, 2011, 19(4): 410-414 (in Chinese).

[4] WANG Jun, LIN Xiangyang, PAN Renming. Dynamic process of ammonium perchlorate leached from composite solid propellant [J]. Chinese Journal of Explosives & Propellants, 2011, 34(4): 70-74 (in Chinese).

[5] HE Yuanhang, YU Hongtao, ZHANG Qingming. Ignition mode of solid propellant processed with high-pressure waterjet [J]. Transactions of Beijing Institute of Technology, 2008, 28(2): 189-191 (in Chinese).

[6] LI Jianchang, FENG Dan, LUO Xianping, et al. The current condition of industrial wastewater treatment technology of ammonia-nitrogen and its prospect [J]. Sichuan Nonferrous Metals, 2008, (3): 41-44, 35 (in Chinese).

[7] PENG Yinxian, WU Chundu, NING Degang, et al. Development of perchlorate removal method[J]. Environmental Science&Technology, 2009, 32(2): 87-90 (in Chinese).