FAN Yanping, YANG Xiangui, WANG Qingyin, et al. Synthesis of didodecyl carbonate by transesterification on KNO3/HMS[J]. CIESC Journal, 2009, (9): 2197-2202.
FAN Yanping, YANG Xiangui, WANG Qingyin, et al. Synthesis of didodecyl carbonate by transesterification on KNO3/HMS[J]. CIESC Journal, 2009, (9): 2197-2202.DOI:
The catalytic activity of KNO3/HMS for the synthesis of didodecyl carbonate (DDC) by transesterification from dimethyl carbonate (DMC) and dodecanol were studied.The KNO3/HMS catalysts were characterized with XRD and FTIR.The method of Hammett indicator-benzene carboxylic acid was used to characterize the basicity strength and the basicity amount distribution.The effects of loading quantity of KNO3
calcination temperature and reaction conditions were investigated.The results indicated that the structures of HMS were well maintained
the optimized KNO3 loading amount and calcination temperature were 13%(mass)
and 600℃ respectively.The basicity amount of KNO3/HMS was greatly affected by the loading amount and calcination temperature.At the molar ratio of DMC to dodecanol 1∶4
DMC addition temperature 140℃
reaction time 5 h and catalyst content 1% of the reactants mass
the yield and the selectivity of DDC were 81.9% and 99.5% respectively.