Abstract
The system of uranyl nitrate aqueous solution and tributylphosphate (TBP) dissolved in kerosene is widely used all around the world, no matter in nuclear fuel cycle or analysis of impurities in uranium. The extraction process is mature, but the amount of consumption of organic reagent and generation of radioactive waste solution is huge, that is not environment friendly. Microfluidic is very popular nowadays, and one of its many applications is extraction. Here in this paper, we studied the flow situation of water and 20%TBP-kerosene, find the relationship between width ratio and flow rate ratio. And we used chemical modification to get a good separated outlet, and we observed the stability of OTS modified glass, that is stable in our circumstance. Finally we use the modified channels to achieve the extraction process, and find the extraction ratio is increases by contact time increases, and has no relationship of initial concentration.
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