Influence of chemical reagent complex on intensification of uranium well extraction
/ 0
- Details
- Category: Contens №6 2019
- Last Updated on 01 January 2020
- Published on 23 December 2019
- Hits: 4044
Authors:
B.R.Rakishev, Acad. of the National Academy of Sciences of Kazakhstan, Dr. Sc. (Tech.), Prоf., orcid.org/0000-0001-5445-070X, Satbayev University, Almaty, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
V.I.Bоndаrenkо, Dr. Sc. (Tech.), Prоf., orcid.org/0000-0001-7552-0236, Dnipro University of Technology, Dnipro, Ukraine, e‑mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
М.М.Маtayev, Dr. Sc. (Chem.), Prоf., orcid.org/0000-0002-9057-5443, “Institute of High Technologies” LLP, Almaty, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Z.S.Kenzhetayev, orcid.org/0000-0003-2009-6655, Satbayev University, Almaty, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract:
Purpose. To determine the effect of special chemical reagents in the composition of leaching solutions on geotechnological parameters during uranium well extraction. To study the possibility of applying this method to increase efficiency of well extraction of uranium ores by intensifying ecotechnological processes of underground uranium leaching. To ensure design capacity of producing blocks and the completeness of extracting metal from them, reduce and prevent sediment in porous medium, reduce specific consumption of sulfuric acid, electric power, labor and other production costs in the process of uranium well extraction.
Methodology. The research includesconsistent literature review, laboratory and practical studies in real conditions. The samples studied in the laboratory by X-ray phase analysis of mineralogical characteristics of sedimentation were taken from Syrdarya depression. Chemical reagents were selected and tested in geotechnological wells during experimental extraction of uranium. The resulting geotechnological parameters of wells were compared to experimental data.
Findings. Values of рН parameters of leaching solutions were obtained within the range from 6.5 to 2.3; it was established that Еh values initially tend to increase sharply to 300–380 mV and then to decrease to 170 mV; uranium content in productive solution was consistently growing from 29 to 146 mg/l; the values of iron salts (Fe3+, Fe2+) concentration in the productive solution were determined in the case when they were affected by chemical multifunctional reagents.
Originality. The method for intensification of uranium well extraction has been developed and justified. It is based on a new complex of chemical reagents producing a selective effect on uraniferous minerals, which improves performance of producing blocks.
Practical value. Rationally selected oxidizer and chemical reagents, as well as the scheme of their feeding into the productive horizon allow intensifying solution of four-valent uranium in complex mining and geological conditions by underground leaching and improving performance of the producing block.
References.
1. Pivnyak, G. G., Pilov, P. I., Bondarenko, V. I., Surgai, N. S., & Tulub, S. B. (2005). Development of coal industry: The part of the power strategy in the Ukraine. Gornyi Zhurnal, (5), 14-17.
2. Bondarenko, V., Symanovych, G., & Koval, O. (2012). The mechanism of over-coal thin-layered massif deformation of weak rocks in a longwall. Geomechanical Processes During Underground Mining – Proceedings of the School of Underground Mining, 41-44. https://doi.org/10.1201/b13157-8.
3. Lozynskyi, V., Saik, P., Petlovanyi, M., Sai, K., Malanchuk, Z., & Malanchuk, Y. (2018). Substantiation into mass and heat balance for underground coal gasification in faulting zones. Inzynieria Mineralna, 19(2), 289-300. https://doi.org/10.29227/IM-2018-02-36.
4. Ilankoon, I. M. S. K., Tang, Y., Ghorbani, Y., Northey, S., Yellishetty, M., Deng, X., & McBride, D. (2018). The current state and future directions of percolation leaching in the Chinese mining industry: Challenges and opportunities. Minerals Engineering, (125), 206-222. https://doi.org/10.1016/j.mineng.2018.06.006.
5. Bоndаrenkо, V. I., & Sai, K. S. (2018). Process pattern of heterogeneous gas hydrate deposits dissociation. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, (2), 21-28. https://doi.org/10.29202/nvngu/2018-2/4.
6. Molchanov, A. A., & Demekhov, Yu. V. (2014). Increasing the efficiency of uranium production from hydatogenous deposits developed by drillhole in situ leachingin the Republic of Kazakhstan (by the example of eastern Mynkuduk deposit). Aktuaknyie Problemy Uranovoi Promyshlennoti, 92-98.
7. Petlovanyi, M., Kuzmenko, O., Lozynskyi, V., Popovych, V., & Sai, K. (2019). Review of man-made mineral formations accumulation and prospects of their developing in mining industrial regions in Ukraine. Mining of Mineral Deposits, 13(1), 24-38. https://doi.org/10.33271/mining13.01.024.
8. Bini, C., Maleci, L., & Wahsha, M. (2017). Mine waste: assessment of environmental contamination and restoration. Assessment, Restoration and Reclamation of Mining Influenced Soils, 89-134. https://doi.org/10.1016/b978-0-12-809588-1.00004-9.
9. Kuzmenko, O., Petlyovanyy, M., & Heylo, A. (2014). Application of fine-grained binding materials in technology of hardening backfill construction. Progressive Technologies of Coal, Coalbed Methane, and Ores Mining, 465-469. https://doi.org/10.1201/b17547-79.
10. Khawassek, Y. M., Taha, M. H., & Eliwa, A. A. (2016). Kinetics of leaching process using sulfuric acid for Sella uranium ore material, South Eastern Desert. Egypt International Journal of Nuclear Energy Science and Engineering, (6), 62-73. https://doi.org/10.14355/ijnese.2016.06.006.
11. Chen, J., Zhao, Y., Song, Q., Zhou, Z., & Yang, S. (2018). Exploration and mining evaluation system and price prediction of uranium resources. Mining of Mineral Deposits, 12(1), 85-94. https://doi.org/10.15407/mining12.01.085.
12. Joint, A. (2018). Uranium 2018. Resources, Production and Demand. Nuclear Energy Agency. https://doi.org/10.1787/uranium-2018-en.
13. Nikitina, Yu. G., Poyezzhayev, I. P., & Myrzabek, G. A. (2019). Improvement of opening schemes of wellfields to optimize the cost of mining uranium. Gornyi Vestnik Uzbekistana, (1), 6-11.
14. Alikulov, S. S., Sobirov, Z., & Khaidarova, M. E. (2018). Research and implementation of the methods of limiting the diffluence of product solutions and the intensification of underground leaching workflows. Gornyi Zhurnal, (3), 100-106. https://doi.org/10.21440/0536-1028-2018-3-100-106.
15. Bondarenko, V., Svietkina, O., & Sai, K. (2018). Effect of mechanoactivated chemical additives on the process of gas hydrate formation. Eastern-European Journal of Enterprise Technologies, 1(6(91)), 17-26. https://doi.org/10.15587/1729-4061.2018.123885.
16. Yusupov, K. A., Elzhanov, E. A., Aliev, S. B., & Dzhakupov, D. A. (2017). Application of ammonium bifluoride for chemical treatment of wells in underground uranium leaching. Gornyi Zhurnal, (4), 57-60. https://doi.org/10.17580/gzh.2017.04.11.
17. Vasilenok, O. P., Ruziev, B. T., & Ivanova, I. A. (2018). Role and effect of in-situ leach uranium oxidizers in by-recovery of rhenium. Gornyi Zhurnal, (9), 74-77. https://doi.org/10.17580/gzh.2018.09.11.
18. Mataev, M. M., Rakishev, B. R., & Kenzhetaev, G. S. (2017). The impact of ammonium bifluoride complex on colmataging formations during the process ofin situ uranium leaching. International Journal of Advanced Research, 5(2), 147-154. https://doi.org/10.21474/ijar01/3126.
19. Uralbekov, B., Burkitbayev, M., & Satybaldiev, B. (2015). Evaluation of the effectiveness of the filtration leaching for uranium recovery from uranium ore. Chemical Bulletin of Kazakh National University, (3), 22-27. https://doi.org/10.15328/cb656.
Newer news items:
- Minimization of the “human factor” influence in Occupational Health and Safety - 23/12/2019 08:44
- Energy-saving control for traction frequency-regulated asynchronous engine of an electric vehicle - 23/12/2019 08:41
- Leveling of pressure flow of radial ventilator in mine ventilation system - 23/12/2019 08:38
- Creation of object-oriented model of centrifugal pump on the basis of electro-hydrodynamic analogy method - 23/12/2019 08:35
- Energy effectiveness of the differential of a device for speed change through the sun gear - 23/12/2019 08:32
- Defining the limits of application and the values of integration variables for the equations of train movement - 23/12/2019 08:30
- Physical and chemical transformations in gas coal samples influenced by the weak magnetic field - 23/12/2019 08:27
- The energy technological background of involving salty coals into energy balance of Ukraine. 2. Natural minerals as catalysts of thermochemical conversion of salty coals in various conditions - 23/12/2019 08:25
- The development of technological solutions on mining and processing brown coal to improve its quality - 23/12/2019 08:23
- New approach to zone division of surface of the deposit by the degree of sinkhole risk - 23/12/2019 08:20
Older news items:
- Technical and economic substantiation of developing Kusmuryn copper deposit (Kazakhstan) - 23/12/2019 08:16
- Substantiating parameters of zeolite-smectite puff-stone washout and migration within an extraction chamber - 23/12/2019 08:12
- Patterns of beryllium distribution in rocks of Central Kazakhstan - 23/12/2019 07:46
- Contens 06 2019 - 20/12/2019 11:57
Archive