Hao Yu-zhi
2011
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Journal
China Surfactant Detergent & Cosmetics
Abstract
Isooctyl(2-ethylhexyl) stearate was synthesized by the transesterification of iso-octanol(2-ethylhexy alcohol) and methyl stearate with dibutyl stannic oxide as catalyst.The effect of factors,such as reaction temperature,reaction time,catalyst dosage,molar ratio of reactants et al,was studied.Experimental results indicated that when reaction temperature is at 140 ℃,molar ratio of dibutyl stannic oxide to methyl stearate is 0.011 4∶1,molar ratio of methyl stearate to iso-octanol is 1∶1.5,and reaction time is 2 h,the yield of isooctyl stearate achieves 89.0%.The catalyst regeneration characteristics were investigated.Activity of the catalyst remains unchanged after reuse of five cycles.Structure of the catalyst was characterized by IR and XRD before and after reaction.The results showed that the stability of the catalyst is good.