千克级LLM-105合成和三氟乙酸回收技术  被引量:3

Synthesis of LLM-105 and Recycling Technology of TFA on Kilogram Scale

在线阅读下载全文

作  者:王友兵[1] 黄凤臣[1] 张蒙蒙[1] 胡琳琳[1] 周杰文[1] 张创军[1] 

机构地区:[1]西安近代化学研究所,陕西西安710065

出  处:《含能材料》2015年第1期29-32,共4页Chinese Journal of Energetic Materials

摘  要:研究了氧化2,6-二氨基-3,5-二硝基吡嗪(ANPZ)合成2,6-二氨基-3,5-二硝基吡嗪-1-氧化物(LLM-105)的千克级工艺。LLM-105收率为98.3%,纯度96.4%。降低了三氟乙酸(TFA)用量。采用红外、元素、核磁、质谱表征了LLM-105的结构。采用中和、酸化、蒸馏的方法,研究了TFA母液回收的千克级工艺,回收率为85.4%,纯度99.7%。回收TFA用于ANPZ氧化反应,LLM-105收率为97.8%。探讨了影响氧化反应的因素。最佳工艺参数为:m(ANPZ)∶V(H2O2)=1∶1.8,m(ANPZ)∶V(TFA)=1∶5,反应温度25~30℃,反应时间14 h;回收TFA的最佳工艺参数为,质量比m(TFA)∶V(H2SO4)=1∶1.0。The technology for synthesizing 2,6-diamino-3,5-dinitropyrazine-l-oxide ( LLM-105 ) was studied by oxidation of 2,6-di- amino-3,5- dinitropyrazine(ANPZ) on kilogram scale. The yield of LLM-105 is 98.3% and its purity 96.4%. The dosage oftrifr luoroacetic acid (TFA) is reduced. The structure of LLM-105 was characterized by IR, elemental analysis,'H NMR and MS. The recovery technology of TFA mother solution was studied by neutralization, acidification and distillation on kilogram scale. The re- covery of TFA is 85.1% and its purity 99.8%. Using the recovery TFA for the oxidation reaction of ANPZ, the yield of LLM-105 can be 97.8%. The factors affecting the oxidation reaction were discussed. The optimum technology parameters of the oxidation reaction are: m(ANPZ) : V(H202)=1:1.8, m(ANPZ) : V(TFA) =1:5, reaction temperature 25-30℃, reaction time 14 h. The optimum technology parameter of recycling of TFA is m(TFA) : V(H2SO4)=1 : 1.0.

关 键 词:应用化学 三氟乙酸 回收利用 氧化 LLM-105 

分 类 号:TQ560.1[化学工程—炸药化工]

 

参考文献:

正在载入数据...

 

二级参考文献:

正在载入数据...

 

耦合文献:

正在载入数据...

 

引证文献:

正在载入数据...

 

二级引证文献:

正在载入数据...

 

同被引文献:

正在载入数据...

 

相关期刊文献:

正在载入数据...

相关的主题
相关的作者对象
相关的机构对象