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Titolo:
Safe operating temperatures for pressurized alkaline hydrolysis of HMX-based explosives
Autore:
Bishop, RL; Harradine, DM; Flesner, RL; Larson, SA; Bell, DA;
Indirizzi:
Univ Calif Los Alamos Natl Lab, Los Alamos, NM 87545 USA Univ Calif Los Alamos Natl Lab Los Alamos NM USA 87545 amos, NM 87545 USA Univ Wyoming, Dept Chem & Petr Engn, Laramie, WY 82071 USA Univ Wyoming Laramie WY USA 82071 Chem & Petr Engn, Laramie, WY 82071 USA
Titolo Testata:
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
fascicolo: 5, volume: 39, anno: 2000,
pagine: 1215 - 1220
SICI:
0888-5885(200005)39:5<1215:SOTFPA>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
PLASTIC-BONDED EXPLOSIVES; HEAT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Bell, DA Univ Calif Los Alamos Natl Lab, POB 1663,MS C920, Los Alamos, NM 87545 USA Univ Calif Los Alamos Natl Lab POB 1663,MS C920 Los Alamos NM USA87545
Citazione:
R.L. Bishop et al., "Safe operating temperatures for pressurized alkaline hydrolysis of HMX-based explosives", IND ENG RES, 39(5), 2000, pp. 1215-1220

Abstract

Alkaline hydrolysis is used to convert high explosives to nonenergetic, aqueous compounds. Base hydrolysis of high explosives is exothermic (Delta H-RXN = 2.3 kJ/g), and thermal runaway of the reaction is a possibility at elevated temperatures (>120 degrees C) where the rate of reaction is large. Thermal runaway could result in an accidental detonation of the energetic material being treated, so safe operating parameters for base hydrolysis needto be determined. To measure the safe operating temperature, base hydrolysis was performed at temperatures ramped from 20 to 300 degrees C. The results show that PBX 9501 molding powder detonates at a 185 degrees C bulk temperature in 1.5 hi NaOH with a 4.5 degrees C/min linear temperature ramp andno agitation. The reaction of pressed PBX 9501 with 0.75, 1.5, and 3.0 M NaOH and water and both pressed and nonpressed PBX 9404 with 0.75, 1.5 M, and 3.0 M NaOH and water aid not produce a detonation with a 4.5 degrees C/min linear temperature ramp. A previously developed reaction rate model was used to show that thermal runaway should occur when the base hydrolysis reaction rate reached a maximum at a bulk temperature between 185 and 225 degrees C.

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Documento generato il 25/11/20 alle ore 15:50:44