CHINESE JOURNAL OF ENERGETIC MATERIALS
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3,4-二硝基呋咱基氧化呋咱结晶工艺
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作者单位:

(中北大学化工与环境学院, 山西 太原 030051)

作者简介:

兰贯超(1989-),男,硕士,主要从事含能材料结晶。e-mail: 1039607071@qq.com 通信联系人: 王建龙(1969-),男,博士,主要从事含能材料及其应用的研究。e-mail: 619379961@qq.com

通讯作者:

王建龙(1969-),男,博士,主要从事含能材料及其应用的研究。e-mail: 619379961@qq.com

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Crystallization Process of 3,4-Bis(3-nitrofurazan-4-yl)furoxan
Author:
Affiliation:

(School of Chemical Engineering and Environment, North University of China, Taiyuan 030051, China)

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    摘要:

    利用动态激光法测定了3, 4-二硝基呋咱基氧化呋咱(DNTF)在V(乙酸):V(水)=7:3的混合溶剂中的溶解度及超溶解度, 并用Apelblat方程对溶解度数据进行拟合。通过正交试验考察影响结晶产品的四个主要因素(起始温度、搅拌速率、降温速率和晶种量), 并得到最优结晶工艺条件为:起始温度85 ℃, 搅拌速率400 r·min-1, 降温速率0.25 ℃·min-1, 晶种量应为所加DNTF固体质量的5%。最优结晶工艺条件下结晶产品收率可达91.7%, 纯度高达99.72%, 晶体密度为1.876 g·cm-3, 用2 kg落锤测得特性落高H50为36.38 cm, 用电子显微镜观察晶体的形貌规则且统一, 用XRD粉末衍射仪对产品进行表征, 结果显示结晶产品没有转晶, 用百特激光粒度仪对产品粒度分布进行表征, 结果显示产品粒度分布较窄且粒度均一。

    Abstract:

    The dynamic laser method was adopted to measure the solubility and supersolubility of 3, 4-bis(3-nitrofurazan-4-yl)furoxan(DNTF) in V(acetic acid):V(water)=7:3 mixed solvent. The Apelblat equation was used to fit the experimental solubility data. The influence of four main crystallization process factors of initial temperature, stirring speed, cooling rate and the mass of seed crystal were investigated by orthogonal experiments. Results show that the best product was obtained under initial temperature of 85 ℃, stirring speed of 400 r·min-1, cooling rate of 0.25 ℃·min-1 and seed crystal mass: solid mass of DNTF=5:95. The yield, purity, crystal density, characteristic height H50 (2 kg drop hammer)of the best product are 91.7%, 99.72%, 1.876 g·cm-3, 36.38 cm, respectively. The morphology of the product is regular, and the crystal size distribution of the product is narrow. Besides, the result of X-Ray powder diffraction demonstrates that the crystal structure does not change during the crystallization process.

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引用本文

兰贯超,王建龙,曹端林,等.3,4-二硝基呋咱基氧化呋咱结晶工艺[J].含能材料, 2016, 24(5):427-432. DOI:10.11943/j. issn.1006-9941.2016.05.002.
LAN Guan-chao, WANG Jian-long, CAO Duan-lin, et al. Crystallization Process of 3,4-Bis(3-nitrofurazan-4-yl)furoxan[J]. Chinese Journal of Energetic Materials, 2016, 24(5):427-432. DOI:10.11943/j. issn.1006-9941.2016.05.002.

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历史
  • 收稿日期: 2015-10-21
  • 最后修改日期: 2015-11-28
  • 录用日期: 2015-12-11
  • 在线发布日期: 2016-05-05
  • 出版日期: 2016-05-20