含能材料2017，Vol.25Issue(12)：1037-1041,5.DOI:10.11943/j.issn.1006-9941.2017.12.011
全氟磺酸MCM-41分子筛催化合成CL-20
Synthesis of CL-20 by MCM-41 Molecular Sieve of Perfluorosulfonic Acid
摘要
Abstract
In order to improve the low yield of CL-20 and solve the difficult recovery of the catalyst,perfluorinated (1-methylethane) sulfonic acid was grafted onto pure MCM-41 mesoporous molecular sieves to prepare the catalyst of perfluorosulfonic acid MCM-41 molecular sieve (SA-MCM-41).The catalyst was applied in the nitration of TAIW to CL-20 using N2O5/HNO3.Results show that the catalyst has the typical crystal structure of MCM-41 with average pore size of 3.13 nm and specific surface area of 887.25 m2 · g-1.The optimal reaction condition is catalyst 0.5 g,reaction temperature 65-75 ℃ and reaction time 5h with the highest yield and purity of 93.9％ and 98.4％,respectively.The catalyst possesses good stability and is easy to separate from the product.Additionally,it can be reused for five times without any significant loss of catalytic activity under the describe reaction conditions.关键词
六硝基六氮杂异伍兹烷(CL-20)/四乙酰基六氮杂异伍兹烷(TAIW)/分子筛/全氟磺酸Key words
hexanitro-hexaazaisowurtzitane (CL-20)/tetraacetyl-hexaazaisowurtziane(TAIW)/molecular sieve/perfluorosulfonic acid分类
军事科技引用本文复制引用
石磊,杨超飞,钱华,任丽萍,刘大斌,潘仁明..全氟磺酸MCM-41分子筛催化合成CL-20[J].含能材料,2017,25(12):1037-1041,5.基金项目
国家自然科学基金(21406116)及“南京理工大学卓越计划‘紫金之星’”专项基金 （21406116）
