2013•Science Technology and EngineeringRequires access
Catalytic Synthesis of Ethyl Stearate by Using Composite Catalyst
Wu Hui
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Abstract
The sodium bisulfate and concentrated sulfuric acid can be used as a catalyst for esterification.Using stearic acid and ethanol as raw material,sodium bisulfate and sulfuric acid catalyst for the synthesis of stearic acid ester compound were studied.The optimum reaction conditions are as follows: acid molar ratio n(stearic acid) ∶ n(ethanol) was 1∶ 8,the amount of catalyst 1.4 g,Complex catalyst in concentrated sulfuric acid and sodium hydrogen sulfate ratio of 1.8∶ 1,and the reaction time was one hundred and twenty minutes.Esterification rate can be up to 82%.