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Название Review of modern scientific developments in the field of extraction of vanadium oxide from petrochemical catalysts
DOI 10.17580/nfm.2022.01.04
Автор Tarasov V. P., Gorelikov E. S., Zykova A. V., Petrunin K. O.
Информация об авторе

NUST “MISiS”, Moscow, Russia:

Tarasov V. P., Doctor of Engineering Sciences, Professor, Head of the Department for Non-Ferrous Metals and Gold, Director of the Center for Industrial Technology Engineering (CIPT), e-mail: vptar@misis.ru
Gorelikov E. S., Deputy Director of CIPT, e-mail: gorelikoves@misis.ru
Zykova A. V., Post-graduate Student of the Department for Non-Ferrous Metals and Gold, e-mail: anna_zykova@inbox.ru
Petrunin K. O., Post-graduate Student of the Department for Non-Ferrous Metals and Gold

Реферат

A review of the scientific and technical literature on hydrometallurgical methods for extracting highpurity vanadium oxide from spent catalysts in the petrochemical industry has been carried out. Currently, high-purity vanadium oxide (V2O5 ≥ 99.5%) is not produced in Russia. The main consumer of high-purity vanadium oxide is the rapidly developing production of vanadium-containing master alloys for the manufacture of titanium alloys. In the chemical industry, high-purity vanadium oxide is used to produce catalysts for the synthesis of phthalic and maleic anhydrides. One of the promising sources of vanadium is spent (deactivated) vanadium catalysts (SVC), in which the content of the valuable component in terms of pentoxide (V2O5) can reach 4–8%. It is much higher than in most processed ore raw materials. Spent catalysts are a secondary raw material, since during operation there is a loss of catalytic properties (activity, conversion, selectivity). After several cycles of regeneration, such a product is a subject of recycling to obtain valuable components. It should also be noted that there is an increase in demand for hydrotreating catalysts, which may cause an excess of spent catalysts in the future. In this regard, there is an urgent need to develop a highly efficient technology for processing catalysts in order to extract valuable components. The review of the scientific and technical literature shows that there are many methods for processing spent catalysts. The article describes the methods of acid, alkali, soda leaching, as well as the performance indicators of these processes. But the existing scientific developments in this area need further development in order to improve the efficiency of the vanadium oxide leaching process.

The work was performed under the agreement between the National Research Technological University “MISiS” and JSC “Company Wolfram” (Moscow region, Russia) No. 0422-341 dated April 22, 2021, implemented with the financial support of the Ministry of Science and Higher Education of the Russian Federation under the Decree of the Government of the Russian Federation No. 218 dated 04/09/2010.

Ключевые слова Vanadium oxide, alkaline leaching, acid leaching, soda leaching, hydrometallurgy, spent petrochemical catalysts
Библиографический список

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Полный текст статьи Review of modern scientific developments in the field of extraction of vanadium oxide from petrochemical catalysts
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