CL-20转晶废剂的处理研究

Treatment of the Waste Solvents from CL-20 Recrystallization

采用烃油及正辛醇对六硝基六氮杂异伍兹烷(CL-20)转晶废剂进行预处理,回收CL-20固体,再利用废剂中各溶剂的沸点不同,通过共沸蒸馏分离出乙酸乙酯和氯仿等溶剂。利用高效液相色谱(HPLC)、傅里叶变换红外光谱(FTIR)、扫描电镜(SEM)对转晶废剂组分和析出的固体进行了表征。结果表明,转晶废剂主要含有氯仿、乙酸乙酯、α-CL-20;用烃油处理废剂回收到的α-CL-20的纯度为99.1%,回收率为79.5%。

The hydrocarbon oil and n-octanol were used to pretreat the waste solvents from 2,4,6,8, 10,12-hexanitro-2,4,6,8, 10, 12-hexaazaisowurtzitane （CL-20） recrystallization process, and the white CL-20 solid was recovered. Ethyl acetate and chlor- oform were distilled by azeotropy for their different boiling points. The components of waste solvents and precipitated solid were characterized by high performance liquid chromatography （HPLC）, fourier transform infrared spectroscopy （FTIR） ,scanning elec- tron microscopy （SEM） . Results show that the waste solvents mai＇nly contain chloroform, ethyl acetate and α-CL-20. The purity of cz-CL-20 recovered by hydrocarbon oil was 99. 1% with the recovery rate up to 79.5%.