FIELD: metallurgy.
SUBSTANCE: proposed method comprises producing vanadium slags with high calcium content with CaO/V2O5 ratio varying from 0.5 to 1.4, roasting said vanadium slags in fluidised bed furnace at 850-950°C. Said slags are roasted for 30-150 minutes. Then, roasted clinker is leached in sulphuric acid solution to produce vanadium slags from leaching solution.
EFFECT: higher efficiency, reduced power consumption.
2 tbl, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREPARING VANADIUM OXIDE | 2014 |
|
RU2562989C1 |
| METHOD OF EXTRACTING VANADIUM FROM VANADIUM SLAG WITH HIGH CONTENT OF CALCIUM AND PHOSPHORUS | 2019 |
|
RU2743355C1 |
| METHOD OF PRODUCING VANADIUM OXIDE | 2009 |
|
RU2454369C1 |
| METHOD FOR TWO-STEP CALCINATION OF VANADIUM-CONTAINING MATERIAL | 2015 |
|
RU2607292C2 |
| METHOD OF CALCINING VANADIUM-CONTAINING MATERIAL | 2015 |
|
RU2607290C2 |
| METHOD FOR EXTRACTING VANADIUM FROM VANADIUM SLAG BY ROASTING WITH A COMPOSITE BASED ON CALCIUM AND MANGANESE | 2021 |
|
RU2793681C2 |
| METHOD FOR PRODUCTION OF VANADIUM-CHROMIUM ALLOY BY VANADIUM EXTRACTION FROM VANADIUM-CHROMIUM SLAG BY MEANS OF CALCINATION AND ACIDIC LEACHING | 2021 |
|
RU2792060C1 |
| METHOD OF PRODUCING VANADIUM OXIDE THROUGH EXTRACTION | 2009 |
|
RU2456241C2 |
| METHOD OF EXTRACTING VANADIUM AND CHROMIUM FROM VANADIUM-CHROMIUM SLAG | 2019 |
|
RU2726540C1 |
| METHOD FOR TWO-STEP SODIUM CALCINING OF VANADIUM-CONTAINING MATERIAL | 2015 |
|
RU2607293C2 |
