30.03.2026
IRN AP23489513 “Optimization of the technology for producing vanadium pentoxide with minimal sulfur and phosphorus impurity content.” Project supervisor – Ph.D., N. Zhumakynbai
For the 2025 stage, the following results were obtained:
A technology for the production and purification of ammonium metavanadate (AMV) from vanadium-containing technogenic raw materials has been developed and experimentally validated, ensuring a reduction of sulfur and phosphorus content to below 0.01%. Effective precipitation reagents (NH₄Cl and NH₄NO₃) were identified, and optimal recrystallization conditions were established; a patent application has been filed. One article has been published.
Zhumakynbai N., Berdikulova F.A., Fofanov A.A., Sapargalieva G.S., Ondiris B.G., Dyuskaliev S.Zh. Obtaining high-purity ammonium metavanadate from vanadium-containing technogenic raw materials contaminated with phosphorus and sulfur: integrated technology for solution purification // Journal of Engineering and Applied Science, Volume 73, article number 94, Published: 06 March 2026. DOI: https://doi.org/10.1186/s44147-026-00959-y
The work is ongoing.
