Mukhlenov I.P., Dobkina Ye.I., Deryujkina V.I. et al. Technology of catalysts. Leningrad, Chemistry, 1979, 325 p.

Vinarov I.V. et al. Complex use of raw materials, 1988, no. 2, pp. 17-19.

Turobov Sh. N., Hasanov A.S., Shodiev A.N. Research into technology of extraction of vanadium using sulfuric acid production waste. Universum: Technical science. 2020, no. 11(80), pp. 82-85.

Masidiqov E.M., Karshiboev S. Possibilities of increasing the efficiency of the technology of hydrometallurgical processing of lead concentrates. Academic research in educational sciences, 2021, no. 2 (3).

Xasanov A.S., Karshiboev Sh.B. Perspektivy razvitiya texnologii polucheniya germaniya iz texnogennyx otxodov. [Prospects for development of technology for producing germanium from industrial waste]. Universum: Technical science, 2021, no. 8(89).

Mirzanova Z. A., Munosibov Sh. M., Raximjonov Z. B., Karimova Sh. K., Tashaliev F. U., Karshiboev Sh. B., Texnologiya pererabotki texnogennix otxodov soderjashie svetnie metalli. [Technology for processing industrial waste containing non-ferrous metals]. Universum: Technical science, no. 6-1 (87), 2021, pp. 59-65.

Alikulov Sh.Sh., Karshiboev Sh.B., Jalilov G.B. Izuchenie osnovy sorbsionnoy texnologii pererabotki uranovyx rastvorov. [Study of the basics of sorption technology for processing uranium solutions]. Universum: Technical science, 2021, no. 3(84).

Voxidov B.R. Issledovaniye vozmojnosti izvlecheniya oksida vanadiya iz texnogennix otxodov. [Investigation of the possibility of extracting vanadium oxide from industrial waste]. Eurasia Scievce, 2017, pp. 93-95.

Lozano L.J. Recovery by solvent extraction of vanadium from spent catalysts leaching solutions using. Primene 81 R. Rev.Met. CENIM, 2001, 37, no. 5, pp. 582-590.

Kravchenko K.N. Metod regenerasii otrabotannogo vanadiyevogo katalizatora. [Waste vanadium catalyst regeneration method]. Kemerovo, 2018, p. 10.

Juang R.S., Lo R.H. Stoichimetery of vanadium (IV) extraction from sulphate solutions with bis(2-ethylhexyl)phosphoric acid dissolved in kerosene. J. Chem. Eng. Jpn. 1993, 26:219.

Marafi M, Stanislaus A. Spent hydrprocessing catalyst management: A review Part II Advances in metal recovery and safe disposal methods. Resour Conserv Recycl, 2008, 53:1–26.

Noori M., Rashchi F., Babakhani A., Vahidi E. (2014) Selective recovery and separation of nickel and vanadium in sulfate media using mixtures of D2EHPA and Cyanex, 272. Sep Purif Technol, 2014, 136:265-273.

Park K.H., Mohapatra D., Reddy B.R. Selective recovery of molybdenum from spent HDS catalyst using oxidative soda ash leach/carbon adsorption method. J Hazard Mater, 2006, 138:311– 316.

Rapaport D. Are spent hydrocracking catalysts listed hazardous wastes? Hydrocarb Process, 2000, 79:49-53.

Sahu K.K., Agrawal A., Mishra D. Hazardous waste to materials: recovery of molybdenum and vanadium from acidic leach liquor of spent hydroprocessing catalyst using alamine. J Environ Manage, 2013, 125:68-73.

Saily A. Studies on liquid-liquid extraction of molybdenum, tugsten and vanadium using alkylphosphine extractants. Indian Institute of Technology, 1997, Roorkee.