Optimization study of FEC synthesis process based on thermal safety
The risk of chlorinated vinyl carbonate fluorination was studied by adiabatic accelerated calo-rimeter(ARC)and reaction calorimeter(RC1),and the high-risk process was optimized by solvent meth-od.The results show that the solvent-free process is extremely dangerous,and by selecting dimethyl car-bonate and diethyl carbonate as the solvent of the reaction system for process optimization,diethyl carbon-ate solvent method found to be a less hazardous process,the adiabatic temperature rise(ΔTad)of the reac-tion process is 114.70 K,the maximum temperature(MTSR)of the synthesis reaction is 125.40 ℃,and the maximum reaction rate arrival time under adiabatic is 24 h.The corresponding temperature(TD24)is 161.00 ℃,the risk level of the optimized process matrix is Ⅰ,the process risk degree is reduced to 1,and the thermal safety of the process is significantly improved.
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