Regularities of Spheroidization of HMX Extracted from Solid Propellant Disposal Products

• Autorzy: Cheltonov Maksym , Zakusylo Roman , Ustymenko Ievhen

Identyfikatory

DOI

10.22211/cejem/131782

• Języki publikacji: EN

Abstrakty

EN

Nitramines of high quality for manufacturing high-energy composites, such as oсtogen (HMX) and hexogen, have received much attention by researchers worldwide. Mixed formulations containing fillers in the form of spheroidal dispersed particles of explosives are homogenized at lower energy consumption. They are characterized by stable rheological characteristics, which guarantee the quality of the products obtained on the basis thereof. Methods for obtaining spherical nitramine particles by means of ultrasonic and hydromechanical rounding using commercial HMX were evaluated. It was found that under similar conditions, rounding by the hydromechanical process in a vortex device is more efficient and less energy-consuming than that of the ultrasonic method. It was confirmed that spheroidization of commercial HMX in an aqueous dimethyl sulfoxide (DMSO) medium by hydromechanical rounding occurs due to erosion of crystals of large size (70 μm or more). Based on the experimental results with spheroidization of commercial nitramine, the mass fraction content below 50 μm versus time was plotted for hydromechanical rounding. The method of hydromechanical rounding in aqueous DMSO to obtain spheroidized HMX, extracted from solid propellant using DMSO, was found to be the most suitable. Spheroidized modified HMX with specific characteristics (density and crystals of near-spherical shape) was obtained, which could be used for the manufacture of high-energy composites.

Słowa kluczowe

EN

solid propellant; octogen; spheroidization; dimethyl sulfoxide

• Wydawca: Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2020
• Tom: Vol. 17, no. 4
• Strony: 523--534
• Opis fizyczny: Bibliogr. 12 poz., rys., tab.

Twórcy

autor

Cheltonov Maksym

• State Enterprise “Research-Industrial Complex “Pavlograd Chemical Plant”, Pavlograd, Ukraine

autor

Zakusylo Roman

• Shostka Institute of Sumy State University, Shostka, Ukraine

autor

Ustymenko Ievhen

• State Enterprise “Research-Industrial Complex “Pavlograd Chemical Plant”, Pavlograd, Ukraine

Bibliografia

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• [8] Meulenbrugge, J.J.; Van der Steen, A.C.; Van der Heijden, A.E. Crystallization of Energetic Materials, the Effect on Stability, Sensitivity and Processing Properties. Proc. Symp. (Int.) on Energetic Materials Technology, Phoenix, Arizona, USA, 1995.
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• [10] Teplov, G.V.; Lapina, Yu.T.; Aponyakina, S.N.; Zolotukhina, I.I.; Belyaev, V.N. Method for Spheroidizing Cyclic Nitramine Crystals. Patent RU 2674970, 2018.
• [11] Lavertu, R.R.; Godbout, A. Process for Spheroidization of RDX Crystals. Patent US 4065529, 1977.
• [12] Lasota, J.; Chylek, Z.; Trzciński, W.A. Methods for Preparing Spheroidal Particles of 3-Nitro-1,2,4-triazol-5-one (NTO). Cent. Eur. J. Energ. Mater. 2015, 12(4):769-783.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).