2006•Journal of Nantong UniversityRequires access
Research on Techniques of Direct Esterification Synthesis of Bishydroxybutyl Terephthalate
Chong Gao
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Abstract
The effects of reaction temperature,the type of catalyst and the adding amount of catalyst on the reaction rate of esterification and the amount of THF by-products generated were studied.It was found that the titanic and stannic composition was very effective as catalyst in increasing the reaction rate of esterification and reducing the amount of THF by-product generated.When a titanic and stannic composition was used as co-catalyst and PTA was gradually added,the amount of THF by-product generated would be decreased to 5.2 % BD.