FIELD: chemistry.
SUBSTANCE: method of obtaining vanadyl sulphate includes extraction from sulphuric acid of vanadium (IV) with undiluted di-2-ethylhexylphosphoric acid in the presence of sodium sulphate and further filtration under vacuum. Extraction is carried out with the ratio of water and organic phases equal (2.5÷3.0):1. After that, the organic phase is separated from the water phase, the organic phase is cooled to 0±0.5°C with an exposure at the said temperature for 20-30 min. After that, xylol is added to the organic phase with a ratio, equal to 1:(0.5÷1.0); the obtained product is washed with hexane.
EFFECT: invention makes it possible to increase the output of vanadyl sulphate trihydrate.
3 cl, 1 dwg, 4 ex
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