从核电站废液中回收硼酸  

Recovery of boric acid from liquid waste of nuclear power plant

作　　者：刘晶晶[1] 张卫江[1] 徐姣[1] 

机构地区：[1]天津大学化工学院,天津300072

出　　处：《化学工程》2011年第2期87-90,共4页Chemical Engineering(China)

摘　　要：随着现代科技的进步,世界范围内对高丰度10B的需求越来越大,尤其是核电站反应堆中需要大量的富集硼-10酸,而目前我国使用的富集硼-10酸完全依靠进口,从而限制了我国高新技术的发展。文中介绍了硼酸在核电站中的作用以及从核废液中回收硼酸的重要意义。结合液-液萃取?离子交换吸附?膜分离和蒸发4种分离技术的原理,以及这4种分离技术各自在硼酸回收过程中的优缺点,对世界各国从核电站废液中回收硼酸的过程进行了研究,得到了几种可行性方案及适用范围。With the progress of modern science and technology,the demand of enriched 10B is bigger and bigger in the world.Particularly,nuclear power reactors require large amounts of enriched boron-10 acid.But now the use of enriched boron-10 acid in China depends on import so that it limits the development of high-tech in China.The role of boron acid in the nuclear power plant and the important significance of recovering boric acid from nuclear waste were introduced.Combining the principles of liquid-liquid extraction,ion exchange,membrane separation and evaporation and respective advantages and disadvantages in the process of recovery of boric acid,the recycling process of boric acid was studied around the world,and several feasibility programs and their applications were elaborated.

关 键 词：硼酸 核电站 废液 回收 

分 类 号：TL949[核科学技术—辐射防护及环境保护]