Abstract: In the process of recovering gallium from Bayer circulating mother liquor by amidoxime chelating resin, gallium and vanadium co-adsorbed and was difficult to desorption, resulting in the adsorption capacity of gallium on resin is reduced. The effects of different desorption agents, concentration of desorption agents, desorption temperature and desorption time on desorption rate were studied, and the preparation of barium vanadate by precipitation and recovery of vanadium ions from strong alkali desorption solution was studied. The results show that: (1) Desorption experiments show that sodium hydroxide does not destroy the resin structure and has a certain desorption rate. When the resin was desorbed by using 12 mol/L sodium hydroxide at 50 ℃ for 10 hours, the desorption rate reaches 43.68%; (2) When 10 mol/L hydrochloric acid, nitric acid and sulfuric acid are used respectively, the desorption rate of vanadium is as high as 60%~70%, but the infrared spectrum test results show that the resin group is damaged. It can be known that 10mol/L strong acid solution will destroy the resin structure. (3) BaO has good precipitation effect on vanadium ion in sodium hydroxide solution; when K (mass ratio of BaO to V₂O₅ in solution) is 3, the temperature is room temperature, NaOH concentration is 1 mol/L, and precipitation time is 30 min, the precipitation rate of vanadium can reach 94.42%, and the precipitation product is Ba₃ (VO₄)₂.