Development of Liquid-liquid Extraction Device with Cuette-Taylor Flow

本研究的目的是研制一种用于核乏燃料后处理的简易萃取装置。采用Cuette-Taylor流（同轴旋转萃取器），构建了一种同轴旋转式液-液溶剂萃取器。利用所开发的计算程序对同轴旋转萃取器的萃取性能进行了计算分析，计算中考虑了同轴旋转萃取器内流体动力学行为的观测数据。在1989年至1991年这一项目期间，我们研究了以下工作。（1）实验结果与关联式的研究利用实验结果进行了参数优化设计，得到了同轴旋转接触器内流体力学行为的几个经验关联式。（2）计算机模拟开发开发了适用于核乏燃料后处理过程的Purex系统计算程序。（3）同轴旋转萃取器的萃取性能利用上述关联式编制的计算程序对同轴旋转萃取器的萃取性能进行了分析。证实了同轴旋转提取器在核乏燃料后处理中的实用性。

The purposes of the present study were to develop a simple extraction equipment for the nuclear spent fuel reprocessing. A coaxial rotary liquid-liquid solvent extractor containing coaxial cylinders, an inner cylinder is rotating and an outer cylinder is fixed, using the Cuette-Taylor Flow(coaxial rotary extractor)was constructed. The extraction performance of coaxial rotary extractor was analyzed by using the computational code which was developed in the present study taking accounts of observed data of the hydrodynamic behavior in the coaxial rotary extractor. During the term of this project from 1989 to 1991, we studied the following works.(1)Survey of experimental results and correlationsSeveral empirical correlations of hydrodynamic behavior in the coaxial rotary contactor were obtained by the data survey with optimal parameter design using experimental results.(2)Development of computes simulationThe computational program for Purex system applicable to the nuclear spent fuel reprocessing process was developed.(3)Performance of the coaxial rotary extractorThe extraction performance of coaxial rotary extractor was analyzed by using the computational program with the above correlations. It was confirmed that the coaxial rotary extractor was useful for the nuclear spent fuel reprocessing.