Wang Xiao-ming
2008
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Journal
Fine chemicals
Abstract
Dioctadecyl phthalate ester was synthesized using phthalic anhydride and stearyl alcohol as raw materials and Ti(OC4H9)4 as catalyst.Thus,with n(stearyl alcohol)/n(phthalic anhydride)=2.2,m(Ti(OC4H9)4)/m(phthalic anhydride)=0.75%,reacting at 200 ℃ for 1 h or 1.5 h,the esterification rate of phthalic anhydride is 98.2% or 99.9% respectively.The reaction time is short,the quantity of catalyst is small,and the catalytic activity is high when Ti(OC4H9)4 was used as catalyst.