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This article discusses the mechanism of sodium aluminate solution system , microemulsion extraction of vanadium , investigated N263 / isoamyl alcohol / kerosene / sodium hydroxide solution , the effect of reverse micelle microemulsion system of separation of aluminum vanadium , and one by one to quantify the impact factors , N263 concentration , cosurfactant isoamyl alcohol concentration , inner water phase alkali concentration , water and milk than R, material alkalinity , extraction temperature , stirring intensity and extraction time . By orthogonal experiment to get the best extraction conditions . After extraction of the micro - emulsion containing aluminum impurities , through experiments the wash process except aluminum investigated the concentration of the stripping lotion ingredients , compared to washing temperature , stirring intensity , the washing temperature , the washing time factors influence of aluminum elution rate , determined best washing process . The demulsification stripping of vanadium-rich microemulsion through the single factor preferred method to determine the optimum conditions Breaking stripping . The results show that : in the extraction test , when the vanadium containing sodium aluminate material liquid component is Al2O3 concentration to 20.4g / L , of Na2O concentration to 14.88 g / L of V2O5 1g / L , and the orthogonal test microemulsion extraction mention vanadium optimum process as follows: surfactant concentration of 10% N263 , cosurfactant isoamyl alcohol concentration of 20% , water and milk ratio of 3 , the sodium hydroxide concentration of the inner water phase of 0.4 mol / L , extraction time was 3min, stirring intensity 200r/min, extraction temperature of 50 ° C and the vanadium extraction rate of 85 per cent , vanadium aluminum separation factor of 65 , the concentration of the extracted microemulsions V2O5 to 2.560g / L Al2O3 concentration 1.642g / L. Washing test , the optimum conditions for washing aluminum : Sui lotion 4g / L NaOH and 3g / L V2O5, the microemulsion and Crafts lotion volume ratio of 3 , the washing time of 6min the stirring intensity for 200r / min, washing temperature is 40 ℃, aluminum washed rate reached 99.5% , after washing the aqueous phase of Al2O3 concentration of 4.9 g / L of V2O5 concentration to 0.645 g / L , can be directly re-extracted back to the extraction stage , the washing after microemulsions Al2O3 concentration of 8 mg / L of V2O5 concentration of 3.450g / L. Stripping test , drawn stripping and demulsification optimum conditions : stripping agent to 1.0 mol / L NaOH 0.6mol / L NaCl , stripping time for 3min , stripping temperature of 60 ° C , the microemulsion and the stripping solution volume ratio of 6 . Stripping stripping liquid V2O5 concentration of 20.7g / L, Al2O3 concentration of 36mg / L.
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