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The method of extraction of vanadium pentoxide

The method of extraction of vanadium pentoxide from stone coal including fire assay, wet and fire method - wet joint process.The current widespread use of wet vanadium extraction roasting →leaching → precipitate Vanadium → burning process.In the submerged arc furnace smelting stone coal containing vanadium , and vanadium enriched to iron phase, alloy or high-vanadium pig iron is the fire method of vanadium extraction.
Vanadium recovery rate of only 40% to 50%.Commonly used acid leaching or sodium salt roasting - acid leaching - solvent extraction process, up to 70% recovery rate.

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