水合肼还原硝化棉动力学模型研究  

Kinetic Research Model of Nitrocellulose Reduction by Hydrazine Hydrate

作　　者：申通 和尚杰 史莹 吴晓青[1] 任欣 赵鹏艳 SHEN Tong;HE Shang-jie;SHI Ying;WU Xiao-qing;REN Xing;ZHAO Peng-yan(School of Science,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学理学院,山西太原030051

出　　处：《精细化工中间体》2021年第1期50-54,共5页Fine Chemical Intermediates

摘　　要：为了处理过期的废药以达到资源回收再利用的目的,安全、环保的水合肼还原法成为废药处理的发展方向之一。通过化学动力学定律结合紫外光谱分析,研究了水合肼还原过期废药硝化纤维素(硝化棉)的动力学,为今后处理废弃发射药提供理论模型。实验采用的水合肼浓度为10、8、6、4 g·L^(-1),温度选择30~90℃,通过硝化纤维素在水合肼溶液中的还原动力学方程的数据分析。结果表明,硝化棉与水合肼反应动力学级数为1.0级。其反应的活化能为39.1 KJ·mol^(-1),表观Arrhenius常数为4.42×10^(5)。In order to deal with a large number of expired propellants(nitrocellulose)and achieve the purpose of resource recycling and reuse,the safe and environmental hydrazine hydrate reduction method has become one of the development directions of processing obsolete propellants.The kinetics of the reduction of nitrocellulose by hydrazine hydrate is studied based on the law of chemical kinetics combined with the analysis of ultraviolet spectroscopy,which provides a theoretical model for the future disposal of obsolete propellant.The concentration of hydrazine hydrate used in the experiment is 10,8,6,4 g·L^(-1),respectively,and the temperature is selected between30℃and 90℃.The data analysis of reduction power equation of nitrocellulose in the hydrazine hydrate solution shows that the kinetic order of the reaction between nitrocellulose and hydrazine hydrate is 1.0,the activation energy of the reaction and the apparent Arrhenius constant are 39.1 k J·mol^(-1) and 4.42×10^(5),respectively.

关 键 词：硝化棉 水合肼 活化能 反应级数 

分 类 号：O621[理学—有机化学]