ortho-Fluoroanisole: A New Donor for Boron Isotopes Separation by Chemical Exchange Distillation

Nana He, Xiaoqin Wu, Xianghai Guo* and Peng Bai*

School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P.R. China

*Corresponding authors: Tel: +86 13662126469; E-mail: chemeng114_tju@163.com


10B is an effective neutron absorbent, which endows its duty in nuclear industry as a protecting agent. The only industrialized process for preparation of 10B is chemical exchange distillation using anisole as a complexing agent. The drawbacks such as low isotope separation factor and instability under process conditions inspired continuous interests to find a replacement. A new complexing agent, o-fluoroanisole, was selected and evaluated for boron isotopes separation. O-fluoroanisole demonstrates better properties such as higher separation factor, lower freezing point of the complex and longer cycle life compared with those of anisole, which suggest it as a noteworthy agent used for separating isotopes.


Boron isotope, Isotope separation, o-Fluoroanisole, Separation factor, Cycle life, Stability, Pyrolysis.

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