• 文献标题:   Removal of entrained organic phase from raffinate in spent fuel reprocessing with graphene-based composites
  • 文献类型:   Article
  • 作  者:   GENG YY, LI Z, ZHAO HG, CHEN MM, ZHANG L
  • 作者关键词:   centrifugal contactor, phase entrainment, spent fuel reprocessing, graphene aerogel
  • 出版物名称:   JOURNAL OF RADIOANALYTICAL NUCLEAR CHEMISTRY
  • ISSN:   0236-5731 EI 1588-2780
  • 通讯作者地址:   Shanghai Inst Appl Phys
  • 被引频次:   0
  • DOI:   10.1007/s10967-020-07015-w
  • 出版年:   2020

▎ 摘  要

In spent fuel reprocessing, the phase entrainment in the solvent extraction process would result in solvent loss, low efficiency and other adverse effects. As a superhydrophobic material with low density and large specific surface area, graphene aerogel may have potential applications in spent fuel reprocessing for the removal of entrained organic phase from raffinate. In this paper, the phase entrainment in the solvent extraction process was investigated by using centrifugal extractor as the extraction equipment. It was found the operation conditions, such as rotor speed, flow rates and phase ratio, have a significant effect on the phase entrainment. Afterwards, a kind of graphene-based superhydrophobic composite was synthesized and used to treat the entrained organic phase in raffinate by a simple adsorption process. The results showed that the proposed method can quickly reduce the content of the organic phase in raffinate to less than 0.1%, showing potential applications in spent fuel reprocessing.