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Citation: YE Tian-Xu, LIU Jing-Yan, ZHANG Bin, MA Xue-Ni. Phosphatotungstic Acids Catalysts Supported on Alumina[J]. Chinese Journal of Applied Chemistry, ;2009, 26(9): 1114-1116. shu

Phosphatotungstic Acids Catalysts Supported on Alumina

1.
College of Chemistry & Chemical Engineering, China University of Petroleum, Qingdao 266555

Corresponding author: YE Tian-Xu,
Received Date: 28 August 2008
Available Online: 10 February 2009
Fund Project: 山东省自然科学青年基金资助项目(Y08059) (Y08059)

Phosphatotungstic acids(H₃PW₁₂O₄₀,PW₁₂) supported on alumina were employed to catalyze the synthesis of ethyl p-hydroxybenzoate.By means of the yield of ethyl p-hydroxybenzoate and the dissolution of HPAs,we researched the function and strength of the catalyst.When the roasting temperature of alumina was 400 ℃ and PW₁₂ was 180 ℃,the yield of ethyl p-hydroxybenzoate was up to 83.8%,and the rate of dissolution of PW₁₂ was 2.8%.Even after the catalyst was recycled for six times,the rate of dissolution of phosohotungstic acid was 12.5%.
- phosphatotungstic acid,
- alumina,
- carriers,
- catalysis
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