钠碎屑和表面被深度氧化的钠中金属钠的回收和利用  

Recovery and Utilization of Metallic Sodium from Sodium Debris and Deeply Oxidized Sodium on the Surface

作　　者：尹青青 殷瑀婕 任彦蓉 吴俊翔 史延慧 曹昌盛 Yin Qingqing;Yin Yujie;Ren Yanrong;Wu Junxiang;Shi Yanhui;Cao Changsheng(School of Chemistry&Chemical Engineering,Jiangsu Normal University,Jiangsu,221116)

机构地区：[1]江苏师范大学化学与材料科学学院,江苏221116

出　　处：《当代化工研究》2025年第3期146-148,共3页Modern Chemical Research

基　　金：2023年国家级、省级大学生创新创业训练计划项目“实验室中测试后纽扣电池中钠的安全回收利用”(项目编号:202310320054Z);2023年校级大学生创新创业训练计划项目“实验室中测试后纽扣电池中钠的安全回收利用”(项目编号:XSJCX14075)。

摘　　要：利用惰性二甲苯沸程远高于钠熔点的性质,将平时累积的表面被氧化的钠碎屑在二甲苯中熔化,再经过冷却、洗涤、加热、冷凝等步骤后可融合回收88%的钠。而剩余未融合的12%钠小球或钠粉末则用来处理前面用过的二甲苯。因钠小球或钠粉末的反应性非常高,很容易除去二甲苯中的水和氧气。这样既回收了大部分的钠,又制得了超干无氧二甲苯。此研究结果对消除实验室部分安全隐患也有重要意义。By utilizing the property that the boiling range of inert xylene is much higher than the melting point of sodium,the accumulated surface oxidized sodium debris is melted in xylene.After that,through steps such as cooling,washing,heating,and condensation,88%of the sodium can be fused and recycled.The remaining 12%sodium balls or sodium powder that have not been fused are used to process the previously used xylene.Due to the high reactivity of sodium balls or powders,it is easy to remove water and oxygen from xylene.This not only recovers most of the sodium,but also produces ultra dry oxygen free xylene.This research result is also of great significance for eliminating some safety hazards in the laboratory.

关 键 词：金属钠回收 表面包覆氧化物的钠 二甲苯 

分 类 号：O6-332[理学—化学]