烯草酮合成工艺热危险性及动力学_程春生.pdf

Vol. 53, No. 2 AGROCHEMICALS Feb. 2014 , , , . [J]. , 2014, 53(2): 99-101. ( 110144) (DSC TG) (RC1) O 3 2 106.9 5 (2 ) 2 3 2 1 273.3 2 120 268.2 49.03 kJ/mol 21.27 K (MTSR)54.27 O 3 2 1.21 Thermal Hazard and Reaction Kinetics for Synthesis Process of Clethodim CHENG Chun-sheng, WEI Zhen-yun, LI Quan-guo, MA Xiao-hua (Technical Center, Shenyang Sciencreat Chemicals Co., Ltd., Shenyang 110144, China ) Abstract:Abstract: [Aims][Aims] The thermal hazards and kinetics of synthesis reaction were tested by using Differential Scanning Calorimetry-Thermogravimetric analyzer (DSC-TG) and Reaction Calorimeter (RC1). [Results][Results] The results indicated that the endothermic decomposition temperature of O -(3-chloro-2-propenyl)hydroxylamine is 106.9 掳C, and 5-(2-(ethylthio)propy)-2-propionyl-3-hydroxy-2-cyclohexen-1-one is 273.3 掳C, the exothermic and endothermic decomposition temperature of clethodim is 120 and 268.2 掳C respectively. The exothermic energy of the synthesis reaction is 49.03 kJ/mol, the adiabatic temperature rise is 21.27 K, and the reaction has a lot of thermal accumulation. Under the thermal runaway condition, the maximum temperature of the synthesis reac