ENVIRONMENTALLY SAFE TECHNOLOGY OF STARCH NITRATE PRODUCTION

PDF(UKRAINIAN)

 

Tishchenko Sergey

“Research production enterprise of chemical products” LLC, Shostka, Sumy region, Ukraine

https://orcid.org/0000-0002-5043-4160

 

Lukashov Vladimir

Shostka Institute of Sumy State University, Shostka, Sumy region, Ukraine

https://orcid.org/0000-0002-9952-0158

 

Plyatsuk Leonid

Sumy State University, Sumy, Ukraine

https://orcid.org/0000-0003-0095-5846

 

DOI: 10.52363/2522-1892.2024.1.5

 

Keywords: starch, nitric acid, nitration, starch nitrate, chemical resistance, drains, presipitation

 

Abstract

This article is devoted to development of an environmentally safe technology for production of an explosive substance – starch nitrate.

The aim of the development was to create the technology for starch nitrate production, which reduces the man-made burden on the environment, due to the absence of acidic wastes discharged into the environment, and also ensures the chemical stability of starch nitrate. This is achieved by starch nitration with highly concentrated nitric acid without adding sulfuric acid.

To work out this process in laboratory conditions, nitration of starch was carried out with 98 %, 90 % and 85 % nitric acids. Obtained starch nitrate was precipitated from the solution in nitric acid into the aqueous solution of nitric acid of lower concentration, separated from the precipitation medium, washed with water, dried, and its chemical stability was determined. The following portions of starch nitrate were precipitated in media prepared from drains formed after washing previous portions of starch nitrate by adding 98 % nitric acid to them. Concentrations of nitric acid in the initial and spent precipitation media were determined.

Based on the results of the experimental studies, the modes of the technological process were established, which allows effective regeneration of the presipitation medium after presipitation of starch nitrate, which excludes the ingress of acid waste into the environment, and ensure high chemical stability of the obtained starch nitrate. The technological scheme for the continuous production of starch nitrate according to environmentally safe technology using a drum vacuum filter was developed, in which all starch nitrate stabilization operations are combined.

 

References

1. Herweyer, D., Brusso, J. L., & Murugesu, M. (2021). Modern trends in "Green" primary energetic materials. New Journal of Chemistry, 45(23), 10150-10159. DOI: 10.1039/D1NJ01227D.

2. Talawar, M. B., Sivabalan, R., Mukundan, T., Muthurajan, H., Sikder, A. K., Gandhe, B. R., & Rao, A. S. (2009). Environmentally compatible next generation green energetic materials (GEMs). Journal of Hazardous Materials, 161(2-3), 589-607. DOI: https://doi.org/10.1016/j.jhazmat.2008.04.011.

3. Sahnoun, N., Abdelaziz, A., Tarchoun, A. F., Boukeciat, H., Mezroua, A., & Trache, D. (2022). Nitrostarch as a promising insensitive energetic biopolymer: Synthesis, characterization, and thermal decomposition kinetics. Industrial Crops and Products, 189, 115774. DOI: https://doi.org/10.1016/j.indcrop.2022.115774.

4. Liu, J. (2019). Nitrate Esters Chemistry and Technology. Springer Nature Singapore Pte Ltd, Beijing, China. DOI: 10.1007/978-981-13-6647-5.

5. Tarchoun, A. F., Trache, D., Hamouche, M. A., Bessa, W., Abdelaziz, A., Boukeciat, H., & Belmehdi, D. (2022). Unraveling the Characteristics and Thermokinetic Behavior of Emergent Energetic Nitrogen-Rich Polysaccharide Based on Chitosan. SSRN. DOI: http://dx.doi.org/10.2139/ssrn.4070248.

6. Caesar, G. V. (1958). Starch Nitrate. Advances in Carbohydrate Chemistry, 13, 331-345. DOI: 10.1016/S0096-5332(08)60360-4.

7. Headquarters Department of the Army. (1984). TM 9-1300-214. Military Explosives. Headquarters Department of the Army, Washington, USA. URL: https://www.epa.gov/sites/default/files/2015-03/documents/9546041.pdf.

8. Zimmerman, W., Muhldorf, K., Sieper, G. A., & Reinhardt, L. (1961). Process for making starch nitrates (USA Patent № 2,995,549). URL: https://patents.google.com/patent/US2995549.

9. Liu, H. L. (2003). Waste minimization at a nitrocellulose manufacturing facility. International journal of environmental studies, 60(4), 353-361. DOI: 10.1080/00207230304725.

10. Shalash, Z. A.-R. (1955). Studies on nitration of starch; stabilization and explosive properties of starch nitrates, Ph.D., Swiss Federal Institute of Technology. DOI: 10.3929/ethz-a-000088955.

11. Kostic-Pulek, A. B., Marinkovic, S. R., & Trifunovic, P. D. The possibility for complete wastewater purification. URL: https://balwois.com/wp-content/uploads/old_proc/ffp-900.pdf.

12. Winterbauer, H. (2005). Improved process for high concentration of nitric acid using magnesium nitrate. Chemical Engineering & Technology: Industrial Chemistry – Plant Equipment – Process Engineering – Biotechnology, 28(6), 709-711. DOI: 10.1002/ceat.200500026.

13. Lukashov, V. K., Tishchenko, S. D., Shevtsova, T. N., & Sereda, V. I. (2022). Patterns of the process of starch nitration with nitric acid. Voprosy Khimii i Khimicheskoi Tekhnologii, 1, 66-72. DOI: 10.32434/0321-4095-2023-146-1-66-72.

14. Tishchenko, S. D., Lukashov, V. K., Vasiltsov, P. О., & Oliynik, V. G. (2023). The methodology of determining of temperature of beginning of active decomposition of starch nitrate. VІІІ All-Ukrainian scientific and methodological conference "Education, science and production: development and prospects". Sumy State University, Sumy, Ukraine, 8-9. URL: https://drive.google.com/file/d/1jeNUBlN0x2SVUi1PmGmGo0S8NE4vkvRO/view.

15. Gańczyk-Specjalska, K. (2019). Conventional and alternative nitrocellulose stabilisers used in gun propellants. Materiały Wysokoenergetyczne / High Energy Materials, 11(2), 73-82. DOI: 10.22211/matwys/0175.