| Article |
|---|
| Article name |
Studies of the various reagents effect on the efficiency of underground borehole leaching of uranium from the ores of the Khiagdinsky deposit |
| Authors |
Mikhailov A.. , OOvseychuk V.A. doctor of engineering sciences, professor, mks3115637@yandex.ru |
| Bibliographic description |
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| Category |
Earth science |
| DOI |
622.775 |
| DOI |
10.21209/2227-9245-2022-28-4-16-27 |
| Article type |
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| Annotation |
To ensure Russia\'s energy security, it is necessary to produce cheap electricity. One of the directions of domestic energy development is its production at nuclear power plants. The source of raw materials for powering nuclear reactors is natural uranium extracted from rocky and hydrogenic (localized in loose sediments) deposits. Hydrogenic deposits have been explored in Transbaikalia, united into a single Khiagdin ore field and characterized by identical mining-geological, hydrogeological and technological parameters. During the operation, certain difficulties have been identified in the extraction of natural uranium, related both to the geological structure of the deposits and the temperature regime of groundwater, and to the economic performance of the enterprise. As a result of the confluence of these circumstances, the issue of transferring uranium to a mobile state during underground borehole leaching with the necessary dynamics that ensures the concentration of uranium in a productive solution, the processing of which will produce profitable mining enterprise products, is problematic. This article is devoted to the intensification of the leaching process using chemical activators that accelerate the conversion of uranium into a productive solution
The relevance of the work is due to the need to activate the process of uranium leaching with the help of underground borehole leaching to ensure a more complete recovery of uranium and to reduce the period of field development with the use of chemical oxidants. The object of the study is technological processes of underground in-situ leaching with the use of chemical activators. The purpose of the study is improving the development efficiency of hydrogenous uranium deposits, reducing operating costs. The research objectives are to identify the most effective oxidants and regimes of their use, increasing the volume of uranium recovery in the productive solution. The research methodology included collecting information, its mathematical and statistical processing, carrying out research work and establishing a connection between mining-geological, hydrogeological and technological parameters of ore leaching. Research methods: mathematical and statistical analysis, laboratory research and the use of the results for experimental and industrial works
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| Key words |
Keywords: underground borehole leaching, technological well, filtration coefficient, oxidizer, leaching solution, productive solution, sulfuric acid concentration, uranium concentration, W/T ratio, redox potential, hydrogen peroxide, sodium nitrite |
| Article information |
Mikhailov A., Ovseychuk V. Studies of the various reagents effect on the efficiency of underground borehole leaching of uranium from the ores of the Khiagdinsky deposit// Transbaikal State University Journal, 2022, vol. 28, no. 4, pp. 16-27. DOI: 10.21209/2227-9245-2022-28-4-16-27 |
| References |
1. Gordiyenko O. Ye., Buchikhin Ye. P., Ryakhovsky M. I. Provedeniye opytnyh rabot po podzemnomu vyschelachivaniyu urana s primeneniyem okisliteley na mestorozhdenii Dolmatovo: Otchet VNIIKHT, TI/2909, 2004 (Experimental work on underground leaching of uranium using oxidizing agents at the Dolmatovo deposit: Report of VNIIKhT, TI / 2909, 2004.
2. Mashkovtsev G. A. Aktualnye problemy uranovoy promyshlennosti: sb. trudov VIII Mezhdunar. nauch.-prakt. konf. (Actual problems of the uranium industry: Collected works of the VIII Intern. scientific-practical. conf.). Astana: NAK, 2017. 451 p.
3. Otchet po teme: «Vybor naiboleye effektivnogo okislitelya dlya litologo – geohimicheskih usloviy Khiagdinskogo mestorozhdeniya»; etap 1b: «Razrabotka sposobov ustraneniya negativnogo vliyaniya solevogo sostava PR na tsikl sorbtsionno-desorbtsionnoy pererabotki pri ispolzovanii razlichnyh okisliteley». Dogovor № 211 ot 25.04.2011 g. Shifr temy:130– S2. Kazatomprom» (Report on the topic: \"The choice of the most effective oxidizing agent for the lithological and geochemical conditions of the Khiagda deposit\"; stage 1b: \"Development of ways to eliminate the negative impact of the salt composition of the PR on the cycle of sorption-desorption processing when using various oxidizing agents.\" Agreement No. 211 dated by April 25, 2011. Subject code: 130–С2. Kazatomprom). Almaty, 2017.
4. Poyezzhayev I. P., Polinovsky K. D., Gorbatenko O. A. Geotekhnologiya urana / pod obshch. red. Yu. V. Demekhova, B. M. Ibrayeva (Geotechnology of uranium / ed. ed. Yu. V. Demekhova, M. Ibraeva. Almaty: KNRTU named after K. I. Satpaeva, 2017. 327 p.
5. Tarasov N. N., Kochkin B. T., Velichkin V. I., Doynikova O. A. Institut geologii rudnyh mestorozhdeniy (Institute of Geology of Ore Deposits), 2018, vol. 60, no. 4, рр. 392–400.
6. Khodzhiyev S. K., Nazarov Kh. M., Ermatov K. A., Mirsaidov I. U., Boboyorov M. D. Doklady Akademii nauk Respubliki Tadzhikistan (Reports of the Academy of Sciences of the Republic of Tajikistan. 2018. vol. 61, no. 3, рр. 275–281.
7. Khawassek Y. M., Taha M. H., Eliwa A. A. EgyptInternational Journal of Nuclear Energy Science and Engineering (EgyptInternational Journal of Nuclear Energy Science and Engineering), 2016.
8. Ma Q., Feng Z. G., Liu P., Lin X. K., Li Z. G., Chen M. S. Journal of Radioanalitycal and Nuclear Chemistry (Journal of Radioanalitycal and Nuclear Chemistry), 2017, vol. 311, рр. 2129‒2134.
9. Prǎvǎlie R., Bandoc G. Journal of Environmental Management (Journal of Environmental Management), 2018, vol. 209, рр. 81–92.
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