用单级Φ70核用离心萃取器在硝酸溶液中进行了 30 %TRPO/煤油体系萃取Nd3+的传质性能实验。结果表明 :在流比为 2∶1和 1∶1,转速为 176 0～ 2 6 50r/min ,总流量为 4 0～ 2 0 0L/h的条件下 ,Nd3+的传质级效率达 90 %以上。在模拟料液和 30 %TRPO/煤油体系中的传质性能实验结果表明 :在流比为 2∶1,转速为 176 0～ 2 6 50r/min ,总流量为 30～ 150L/h的条件下 ,传质级效率达 90 %以上。用 5 5mol/LHNO3反萃有机相中Nd3+的实验结果表明 :反萃级效率随总流量增加而减小 ,在同一总流量下随转速的增加而增大 ,在实验条件范围内 ,Nd3+的反萃级效率在 83%～ 93%之间。实验结果证明 :Φ70核用离心萃取器具有良好的水力学性能和传质性能 Mass transfer experiments of 30% TRPO / kerosene extraction of Nd3 + were carried out in a nitric acid solution using a single-stage Φ70 core centrifugal extractor. The results show that the mass transfer efficiency of Nd3 + reaches 90% at a flow rate of 2: 1 and 1: 1 at a rotational speed of 176 0-2 2650 rpm and a total flow rate of 40-200 L / h. the above. The experimental results of mass transfer performance in simulated feedstock and 30% TRPO / kerosene system show that under the conditions of flow ratio of 2:1, rotation speed of 176 0 ~ 2650r / min and total flow of 30 ~ 150L / h , Mass transfer efficiency of 90% or more. The experimental results of the stripping of Nd3 + in the organic phase with 5 5mol / L HNO3 show that the stripping efficiency decreases with the increase of the total flow rate and increases with the increase of the rotational speed at the same total flow rate. Under the experimental conditions, Extractive efficiency between 83% ~ 93%. Experimental results show that: Φ70 core centrifugal extractor has good hydraulics and mass transfer performance