FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing high-purity vanadium oxide via extraction. The method involves preparing the starting substance for firing, firing with liming, leaching, separating the undissolved residue, mixing the leaching product with a saponified organic phase to carry out extraction, treating the extraction products with sulphuric acid to obtain an ammonium polyvanadate residue which is calcined to obtain V2O5 or reducing the ammonium polyvanadate to obtain V2O3, wherein waste water from extraction is returned into the system for circulation and reuse after neutralisation treatment with lime milk.
EFFECT: invention increases rate of extracting vanadium and reduces the cost of the product, enables to obtain a vanadium product of high quality and recycle waste water from vanadium extraction.
11 cl, 1 dwg, 12 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING VANADIUM OXIDE | 2009 |
|
RU2454369C1 |
| METHOD OF PRODUCING VANADIUM OXIDE USING ION EXCHANGE TO RECYCLE WASTE WATER | 2009 |
|
RU2454368C1 |
| METHOD OF FABRICATING VANADIUM PRODUCTS BY FLUIDISATION | 2008 |
|
RU2441083C1 |
| METHOD OF PRODUCING VANADIUM OXIDE OF A BATTERY GRADE | 2018 |
|
RU2736539C1 |
| 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 REDUCING AMMONIA FROM A VANADIUM COMPOUND FOR PRODUCING AN AMMONIA COMPOUND AND RECYCLING WASTE WATER | 2019 |
|
RU2710613C1 |
| METHOD OF PREPARING VANADIUM OXIDE | 2014 |
|
RU2562989C1 |
| METHOD FOR TWO-STEP CALCINATION OF VANADIUM-CONTAINING MATERIAL | 2015 |
|
RU2607292C2 |
| METHOD OF CALCINING VANADIUM-CONTAINING MATERIAL | 2015 |
|
RU2607290C2 |
