[1]刘琼①,梁宏业①,郭浩①,等.硝基胍真空结晶工艺技术研究[J].爆破器材,2018,47(02):33-38.[doi:10.3969/j.issn.1001-8352.2018.02.007]
　LIU Qiong,LIANG Hongye,GUO Hao,et al.Study on Vacuum Crystallization Technology of Nitroguanidine[J].EXPLOSIVE MATERIALS,2018,47(02):33-38.[doi:10.3969/j.issn.1001-8352.2018.02.007]
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硝基胍真空结晶工艺技术研究()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
47
期数:
2018年02
页码:
33-38
栏目:
爆炸材料
出版日期:
2018-03-23

文章信息/Info

Title:
Study on Vacuum Crystallization Technology of Nitroguanidine
文章编号:
5219
作者:
刘琼①；梁宏业①；郭浩①；堵平②；徐滨②
①辽宁庆阳特种化工有限公司(辽宁辽阳,111002)
②南京理工大学化工学院(江苏南京,210094）
Author(s):
LIU Qiong①;  LIANG Hongye①;  GUO Hao①;  DU Ping②; XU Bin②
① Liaoning Qingyang Special Chemical Co., Ltd. (Liaoning Liaoyang, 111002) 
② School of Chemical Engineering, Nanjing University of Science and Technology (Jiangsu Nanjing, 210094)
关键词:
硝基胍（NQ）; 真空结晶; 粒度; 针状晶体; 棒状晶体
Keywords:
nitroguanidine (NQ);  vacuum crystallization;  particle size;  acicular crystal;  rod-like crystal
分类号:
TQ562
DOI:
10.3969/j.issn.1001-8352.2018.02.007
文献标志码:
A
摘要:
针对军用棒状硝基胍现有喷雾结晶制造工艺存在的平均粒度粗、粒度分布较宽、晶型规整性不好的状况，以及针状晶型不适合在发射药中应用的技术问题，对硝基胍结晶特性、晶型转变原理、结晶工艺条件进行了分析研究，提出了采用真空结晶代替喷雾结晶制取粉状硝基胍的工艺技术途径。结果表明：采用合适的抑制剂聚乙烯醇、分散剂十二烷基苯磺酸钠，同时控制硝基胍溶液浓度，可以促进结晶向棒状形貌有效转化；采用抑制剂质量分数0.05%~0.08%、分散剂质量分数0.1%、结晶真空度0.096 MPa、结晶温度33 ℃、直喷闪蒸结晶法等工艺条件，可制备平均粒度3.3 μm以下的棒状硝基胍晶体。
Abstract:
Military powdery nitroguanidine (NQ) manufactured by spray crystallization process often appears thick average grading, wide particle size distribution, and unsatisfied crystal regularity. And NQ with acicular crystal is not suitable for application in propellants. To improve the quality of military powdery NQ, crystallization properties, principle of crystal transformation and crystallization process conditions of NQ were analyzed and studied. Vacuum crystallization was used to replace spray crystallization in powdery NQ production. The results show that, with appropriate inhibitors such as ploy vinyl alcohol and dispersants such as sodium dodecyl benzene sulfonate, crystal transformation of NQ from needle-like to rod-like could be modified effectively by controlling the concentration of NQ solution. When inhibitor mass fraction is 0.05%-0.08%, dispersant mass fraction is 0.1%, crystallization vacuum is 0.096 MPa, and crystallization temperature is 33 ℃, the rod-like NQ crystal with an average particle size less than 3.3 μm can be obtained with the direct spraying flash distillation method.

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备注/Memo

备注/Memo:
收稿日期：2017-10-16
作者简介：刘琼（1966－），男，本科，研究员级高工，主要研究方向为火炸药。E-mail:395280046 @qq.com
通信作者：堵平（1969－），男，博士，研究员，主要研究方向为含能材料。E-mail:dp1314@163.com
更新日期/Last Update: 2018-03-23