2003•Shaanxi Chemical IndustryRequires access
Study on catalytic synthesis of dimethyl maleate over solid acid
Si He
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Abstract
The maleic anhydride and methanol as raw material,solid acid as catalyst,the dimethyl maleate is synthesized.The effects of molar ratio of methanol to maleic anhydride,catalyst dose,and the reaction time on the yield of ester are discussed.The results showed that the yield of esterification was over 95% when the molar ratio of methanol to maleic anhydride was 8∶1,dose of solid acid catalyst 1.5%(to maleic anhydride),and reflux reaction for 9 h.