DEVELOPMENT TECHNOLOGY FOR PRODUCING VANADIUM FIVE OXIDE FROM MINERAL AND TECHNOGENIC RAW MATERIALS
Keywords:
mining and metallurgical waste, slag, vanadenite, limestone, vanadium pentoxide, roasting, leaching, recoveryAbstract
This article discusses the possibility of extracting vanadium pentoxide from mineral and industrial raw materials. Based on the study of this topic and the analysis of the results of the studies, the author came to the conclusion that medium temperature roasting of the ore is carried out by vanadium water-soluble sodium vanadate (NaVO3) and the subsequent leaching of the metal using sulfuric acid increases the vanadium extraction 76,5 to 90,2%. It was also revealed that in the process of firing vanadium as a binder material, the most effective reagent is technical soda. It was found that the solubility of sodium vanadate is more effective than the sulfuric acid medium than conventional aqueous leaching of the product. Nevertheless, a special combined technology of selective sintering and leaching of the cinder has been determined and worked out: the selective deposition of vanadium and its separation from unnecessary impurities and the calcination of the precipitate bring a high-frequency production of V2O5 of 98-99%.
References
B.R. Voxidov, A.R. Aripov, G‘.F.Mamaraimov, Sh.N.Turobov // Research of technological process of vanadium distribution in Uzbekistan // XI International correspondence scientific specialized conference «International scientific review ofthe technical sciences, mathematics and computer science» Boston.USA. June 10-11.2019.
A.S. Xasanov, B.R. Voxidov, G‘.F. Mamaraimov // Texnogen chiqindilardan vanadiy besh oksidini ajratib olish imkoniyatlarini o‘rganish // Nauchno-texnicheskiy jurnal Ferpi 2020. Tom 24. №3.
B.R. Voxidov, G‘.F. Mamaraimov // Texnogen chiqindilardan vanadiy besh oksidini ajratib olish imkoniyatlari // O‘zbekistonda ilmiy-amaliy tadqiqotlar” mavzusidagi respublika 16-ko‘p tarmoqli ilmiy masofaviy onlayn konferensiya materiallari 16-qism.
B.R. Voxidov, G‘.F. Mamaraimov // Texnogen xomashyolardan vanadiy va palladiyni olish usullarini ishlab chiqish// O‘zbekistonda ilmiy-amaliy tadqiqotlar” mavzusidagi respublika 22-ko‘p tarmoqli ilmiy masofaviy onlayn konferensiya materiallari 16-qism.
A.S. Xasanov, B.R. Voxidov, G‘.F. Mamaraimov // Texnogen xomashyolardan vanadiy va palladiyni ajratib olishning texnologiyalarini yaratish // Nauchno-texnicheskiy jurnal Ferpi 2021. Tom 25. № 2.
B.R.Voxidov, A.E, Nurimov, G.F. Mamaraimov, B.M. Nemenenok // Razrabotka texnologii polucheniya pyatiokisi vanadiya iz mineralnogo i texnogennogo sыrya // “X Forum vuzov injenerno-texnologicheskogo profilya soyuznogo gosudarstva” g. Minsk, 6–10 dekabrya 2021 g.
B.R. Voxidov, A.S. Xasanov, G‘.F. Mamaraimov // Mis sanoati texnogen chiqindilaridan qimmatbaho metallarni ajratib olish texnologiyasini tadqiq qilish // Nauchno-texnicheskiy jurnal Ferpi 2022. Tom 26. № 3.
