Modeling of autoignition temperature of organic energetic compounds using hybrid intelligent method

2018 ◽  
Vol 120 ◽  
pp. 79-86 ◽  
Author(s):  
Muhammad A. Suleiman ◽  
Taoreed O. Owolabi ◽  
Hayatullahi Bolaji Adeyemo ◽  
Sunday O. Olatunji
Keyword(s):  
Energetic Compounds ◽  
Autoignition Temperature ◽  
Hybrid Intelligent Method

Biotransformation of nitrocellulose under methanogenic conditions

1996 ◽  
Vol 34 (5-6) ◽  
pp. 327-334 ◽  
Author(s):  
David L. Freedman ◽  
Bryan M. Caenepeel ◽  
Byung J. Kim
Keyword(s):  
Biological Treatment ◽  
Enrichment Culture ◽  
Basal Medium ◽  
Anaerobic Biodegradation ◽  
Anaerobic Treatment ◽  
Acid Digestion ◽  
Energetic Compounds ◽  
Nitrate Ester ◽  
Digestion Technique ◽  
Aerobic And Anaerobic

Treatment of wastewater containing nitrocellulose (NC) fines is a significant hazardous waste problem currently facing manufacturers of energetic compounds. Previous studies have ruled out the use of biological treatment, since NC has appeared to be resistant to aerobic and anaerobic biodegradation. The objective of this study was to examine NC biotransformation in a mixed methanogenic enrichment culture. A modified cold-acid digestion technique was used to measure the percentage of oxidized nitrogen (N) remaining on the NC. After 11 days of incubation in cultures amended with NC (10 g/L) and methanol (9.9 mM), the % N (w/w) on the NC decreased from 13.3% to 10.1%. The presence of NC also caused a 16% reduction in methane output. Assuming the nitrate ester on NC was reduced to N2, the decrease in CH4 represented almost exactly the amount of reducing equivalents needed for the observed decrease in oxidized N. An increase in the heat of combustion of the transformed NC correlated with the decrease in % N. There was no statistically significant decrease in % N when only NC was added to the culture, or in controls that contained only the sulfide-reduced basal medium. The biotransformed NC has a % N comparable to nonexplosive nitrated celluloses, suggesting that anaerobic treatment may be a technically feasible process for rendering NC nonhazardous.

Mono-N-oxidation of heterocycle-fused pyrimidines

2021 ◽  
Vol 50 (6) ◽  
pp. 2143-2148
Author(s):  
Yongxing Tang ◽  
Kejia Li ◽  
Ajay Kumar Chinnam ◽  
Richard J. Staples ◽  
Jean'ne M. Shreeve
Keyword(s):  
Mild Oxidation ◽  
Oxidation Reactions ◽  
Energetic Compounds ◽  
Thermal Stabilities

Mild oxidation reactions of nitrogen-rich heterocyclic rings lead to the formation of energetic compounds with the mono-N-oxide moiety which show good thermal stabilities and detonation performances.

A hybrid intelligent method for modelling the EDM process

2003 ◽  
Vol 43 (10) ◽  
pp. 995-999 ◽  
Author(s):  
Kesheng Wang ◽  
Hirpa L. Gelgele ◽  
Yi Wang ◽  
Qingfeng Yuan ◽  
Minglung Fang
Keyword(s):  
Hybrid Intelligent Method ◽  
Edm Process

Studies on (non) energetic compounds. Part-14: Thermal decomposition of dimethylanilinium chlorides

1999 ◽  
Vol 338 (1-2) ◽  
pp. 45-55 ◽  
Author(s):  
Gurdip Singh ◽  
Inder Pal Singh Kapoor ◽  
Jaspreet Kaur
Keyword(s):  
Thermal Decomposition ◽  
Energetic Compounds

Teeming slabbing ingots of corrosion-resistant steel under an exothermic mixture with a high autoignition temperature

Metallurgist ◽  
1988 ◽  
Vol 32 (8) ◽  
pp. 269-269
Author(s):  
V. M. Borevskii ◽  
V. A. Voronov ◽  
V. A. Bulat ◽  
G. I. Piskun ◽  
V. I. Starykh ◽  
...  
Keyword(s):  
Corrosion Resistant Steel ◽  
Resistant Steel ◽  
Corrosion Resistant ◽  
Exothermic Mixture ◽  
Autoignition Temperature
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