Xu Changlong
2010
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Journal
Chemical Industry and Engineering Progress
Abstract
Octadecanoic acid was synthesized by (NH4)3P2Mo18O62 catalyzed oxidation of octadecanol with 30% hydrogen peroxide. Effects of catalyst amount,30% H2O2 amount,reaction temperature, reaction time were investigated. The optimal conditions were obtained by orthogonal experiments,under the optimal condition which,i.e. m(catalyst)= 3.7% (relative to the dosage of octadecanol),reactant molar ratio of octadecanol∶hydrogen peroxide with 1.0∶10.0 and reaction temperature of 95℃, reaction time of 4 h,the isolated yield of octadecanoic acid achieved 95.3%. The catalyst could be reused for 5 times and the isolated yield of octadecanoic acid was still above 91.6%.