在不同条件下,测定了N_263萃取钒的饱和容量。发现在不同的pH时,其饱和容量差别很大,研究弄清了萃取容量与含钒阴离子状态间的关系和规律性,提出了N_263萃取钒的机理。在此基础上确定了萃取钒的适宜条件。实验结果表明,N_263对钒的萃取性能良好,在实用上有重要的意义。 Under different conditions, the saturation capacity of vanadium extracted by N_263 was determined. It is found that the saturation capacity varies greatly at different pHs. The relationship between the extraction capacity and vanadium anion status and the regularity have been studied. The mechanism of N_263 extraction of vanadium has been proposed. Based on this, the suitable conditions for extracting vanadium were determined. The experimental results show that, N_263 vanadium extraction performance is good, in practical significance.