一、萃取过程简介 核燃料萃取过程,目前已经规范化了,称为普雷克斯流程。它是在十六级混合澄清槽中进行的,如图1所示。 由图1可见,混合澄清槽萃取过程,是一个多输入多输出的控制对象。它有三个输入作用,分别为萃取剂流量Qx,待萃取料液流量Qf和洗涤剂流量Qs;有四个输出量,分别为 First, the extraction process Introduction Nuclear fuel extraction process, has now been standardized, known as Pre Rex process. It is carried out in sixteen mixed clarification tanks, as shown in Figure 1. Can be seen from Figure 1, the mixed clarification tank extraction process is a multi-input and multi-output control object. It has three inputs, namely extractant flow Qx, extract liquid flow Qf and detergent flow Qs; there are four outputs, namely