基于绿色低共熔溶剂CS-1的TATB新型纯化方法与机理  

The Method and Mechanism of TATB Purification Based on Green Solvent

作　　者：左依文 陈建波[2] 刘晓峰[2] 刘渝[2] 索志荣[1] ZUO Yi-wen;CHEN Jian-bo;LIU Xiao-feng;LIU Yu;SUO Zhi-rong(School of Materials and Chemistry,Southwest University of Science and Technology,Mianyang 621010,China;Institute of Chemical Materials,CAEP,Mianyang 621999,China)

机构地区：[1]西南科技大学材料与化学学院,四川绵阳621010 [2]中国工程物理研究院化工材料研究所,四川绵阳621999

出　　处：《含能材料》2024年第7期745-753,共9页Chinese Journal of Energetic Materials

基　　金：国家自然科学基金(22275176);中物院创新发展基金(CX20210028)。

摘　　要：为了解决TATB因溶解性差不适用于常规纯化方法的问题,采用反萃取技术,选用对TATB具有良好溶解性的新型绿色低共熔溶剂(CS-1),以水为反萃取剂,进行了TATB的纯化;对比了该法与其它纯化方法的不同,系统优化了该法中反萃取剂加入量、洗涤次数及干燥方式等条件对TATB的纯化影响,构建了纯度为(99.7±0.2)%,回收率为92.5%的TATB高效分离与绿色纯化方法。研究同时采用光谱过程监测和理论计算模拟,基于CS-1溶剂的TATB纯化动力学,探讨了基于氢键竞争和络合物解离的TATB纯化机制。Traditional methods are difficult for the purification of TATB due to its poor solubility.Green deep eutectic solvent(CS-1)displays good solubility toward TATB,so CS-1 was used as the solvent with water as back extractant to develop a new purification method for TATB in this study.The difference between this method and other methods were investigated for the purification of TATB.Purification conditions including the amount of back extractant,washing times and drying methods were com prehensively optimized to improve the purity of TATB.Finally,a new method has been established for highly efficient separation and green purification of TATB.Through this method,high-purity TATB was obtained with the purity of(99.7±0.2)%and good recovery of 92.5%.Further,spectroscopic monitoring was combined with theoretical simulation to study the kinetics of the purification of TATB,and then a purification mechanism has been proposed,which is based on the dissociation of TATB’s complexes through the competition of hydrogen bonding between CS-1 and water.

关 键 词：1 3 5-三氨基-2 4 6-三硝基苯 CS-1溶剂 反萃取技术 纯化机制 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] O657[理学—分析化学]