三氟化硼-苯甲醚络合物化学交换法制备10B和11BF3  

Preparation of 10B and 11BF3 by Chemical Exchange of Boron Trifluoride-Phenyl Methyl Ether Complex

作　　者：李建平 LI jianping(CNNC Jianzhong Nuclear Fuel Co., Ltd., Yibin 644000, China)

机构地区：[1]中核建中核燃料元件有限公司

出　　处：《同位素》2019年第6期411-417,I0003,共8页Journal of Isotopes

摘　　要：利用化学交换法富集硼-10同位素工艺制备10B和11BF3,计算分离装置交换塔同时生产硼-10同位素和硼-11同位素所需的最小理论塔板数与最佳理论塔板数。根据目前核能领域和电子工业领域的需求,结合三氟化硼-苯甲醚络合物化学交换法生产工艺,计算同时生产硼-10同位素和11BF3所需塔板数和交换塔高度,并分析富集11BF3气体中的杂质来源及其净化处理工艺。验算现有工艺分离系统到达平衡期后同时生产硼-10同位素和高丰度11BF3的可行性,为生产硼同位素提供了一种新思路。The method of preparing 10B and 11BF3 by chemical exchange method for the enrichment of boron-10 isotope is described, and the minimum theoretical plate number and the optimal theoretical plate number for the simultaneous production of boron-10 isotope and boron-11 isotope in the exchange tower of the separation unit are calculated. According to the current requirements of nuclear energy and electronic industry, combined with the characteristics of the production process of boron trifluoride-phenyl methyl ether complex chemical exchange method, the number of plates and the height of the exchange tower needed for the simultaneous production of boron-10 isotope and 11BF3 were calculated. The source of impurities in 11BF3 gas and its purification process were analyzed. The feasibility of producing boron-10 isotope and high abundance 11BF3 isotope at the same time after the present separation system reaches the equilibrium stage is verified.

关 键 词：10B和11BF3制备 塔板数计算 净化工艺 

分 类 号：TL255[核科学技术—核燃料循环与材料]