用 P204从酸性溶液中萃取回收铀时,水溶液中存在的磷、铁严重的影响 P204对铀的萃取。加入适量的 TPB 能有效地抑制磷和铁的不利影响。在所推荐的条件下,P204—TPB 混合萃取剂经一次萃取后,水相中铀浓度可降低到10毫克/升左右。这对稀有金属湿法冶金工艺中防止铀的污染和综合回收铀有一定的实际意义。 When using P204 to extract and recover uranium from acidic solution, the phosphorus and iron existing in the aqueous solution seriously affect the extraction of uranium by P204. Addition of appropriate amount of TPB can effectively inhibit the adverse effects of phosphorus and iron. Under the recommended conditions, after one extraction of the P204-TPB mixed extractant, the uranium concentration in the aqueous phase can be reduced to about 10 mg / l. This is of rare metal hydrometallurgical process to prevent uranium pollution and comprehensive recovery of uranium has some practical significance.