Du Cai-xia
2006
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Journal
Hebei Chemical Engineering and Industry
Abstract
Dioctyl(o-)Phthalate was synthesized by the solid superacid SO42-/TiO2 as catalyst. The reaction conditions are studied. The optimum reaction conditions were molar ratio of alcohol to phthalic anhydride 3.8∶1, amount of the catalyst 3% by totle weight, and the reaction time 2.5 h react temperature 120-150 ℃. Under these conditions, the conversation of phthalic anhydride is up to 83.7 % .