The control of path of Np in the purex process by using cascade count-current extraction method is investigated. Well-defined conditions for recovery, separation and purification of Np from the stream 2DW of 2nd.

• 本文报道了用串级萃取方法研究普勒克斯过程铀线镎的走向的控制,并推荐了从铀线2DW中定量回收、分离、纯化镎的合适工艺条件。