Acta Chimica Sinica ›› 2012, Vol. 70 ›› Issue (10): 1227-1231.DOI: 10.6023/A1112122 Previous Articles     Next Articles

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氟吗啉合成工艺热危险性及动力学研究

程春生, 秦福涛, 魏振云, 任忠宝, 明旭   

  1. 沈阳化工研究院有限公司 沈阳科创化学品有限公司 沈阳 110144
  • 收稿日期:2011-12-12 修回日期:2012-03-01 出版日期:2012-05-28 发布日期:2012-05-28
  • 通讯作者: 程春生 E-mail:chengchunsheng@sinochem.com

Thermal Hazard and Kinetic Study for Synthesis Process of Flumorph

Cheng Chunsheng, Qin Futao, Wei Zhenyun, Ren Zhongbao, Ming Xu   

  1. Shenyang Research Institute of Chemical Industry Co., LTD., Shenyang Sciencreat Chemicals Co., LTD., Shenyang 110144
  • Received:2011-12-12 Revised:2012-03-01 Online:2012-05-28 Published:2012-05-28

Flumorph is a new fungicide, thermal hazard study and kinetic analysis for the process will solve engineering problems and ensure production safety. The thermostability of main materials is tested by using differential scanning calorimetry-thermogravimetric analyzer (DSC-TG). The reaction thermal behavior is studied by using reaction calorimeter (RC1), and the kinetic study of the reaction is carried out in this paper. The conclusion of this study is that the endothermic decomposition temperature of main intermediate of (3,4-dimethoxyphenyl)(4-fluorophenyl)methanone is 559.3 K. The exothermic decomposition temperature of N-acetylmorpholine is 478.2 K and the endothermic decomposition temperature of flumorph is 638.6 K. The exothermic energy of the reaction for synthesis of flumorph is 15.44 kJ/mol, and the adiabatic temperature rise is 9.1 K. This process is with lower thermal hazard. The reaction kinetic equation is rA=kcAa=8.34×10-3CA0.57, and the reaction order is 0.57 for (3,4-dimethoxyphenyl)(4-fluorophenyl)- methanone.

Key words: flumorph, differential scanning calorimetry-thermogravimetric analyzer (DSC-TG), decomposition temperature, reaction calorimeter (RC1), thermal hazards, kinetics