Abstract: In order to develop and utilize the mineral resources of navajoite of carbonaceous shale and protect the ecological environment effectively, the new process of segmented oxidation leaching for distill vanadium from navajoite of carbonaceous shale is presented, and the leaching experiment of a navajoite ore of carbonaceous shale in Guizhou was carried out.The experiment results show that：the ore grinding fineness is 70% -0.15 mm, in the first stage leaching, the quantity of 1# reagent is 15% of the ore amount, the liquid-solid ratio is 0.75∶1, the leaching temperature is 80 ℃, the leaching time is 3 h, In the second stage leaching, the quantity of 2^# reagent is 3% of the ore amount, the quantity of sodium chlorate is 1% of ore amount, the liquid-solid ratio is 1∶1, the leaching temperature is 80 ℃, the leaching time is 4 h, the vanadium leaching rate can be up to 91.52%.The original ore does not need to roast in this new process, the process flow is simple, the dosage of reagents is lower, the leaching time is shorter, the vanadium leaching rate is higher, and the problems of environmental pollution and resources-wasting in roasting navajoite leaching vanadium process could be avoided.

Key words: Navajoite ore of carbonaceous shale, Segmented oxidation leaching, Cleanly distill vanadium