Treatment of the waste solvents from CL-20 recrystallization

Ru Yi Ma, Hong Quan Yin, Yan Wen Zhang, Ming Li, Chun Zhu Liu, Yu Kai Wu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

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 chloroform 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 electron microscopy (SEM). Results show that the waste solvents mainly contain chloroform, ethyl acetate and α-CL-20.The purity of α-CL-20 recovered by hydrocarbon oil was 99.1% with the recovery rate up to 79.5%.

Original languageEnglish
Pages (from-to)1147-1150
Number of pages4
JournalHanneng Cailiao/Chinese Journal of Energetic Materials
Volume23
Issue number11
DOIs
Publication statusPublished - 25 Nov 2015

Keywords

  • 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (CL-20)
  • Hydrocarbon oil
  • N-octanol
  • Recover
  • Recrystallization
  • Waste solvents

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