Epoxidation of Styrene via Anhydrous t-Butylhydroperoxide Catalyzed by Supported Au/Fe(OH)3

Chem. J. Chinese Universities

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Epoxidation of Styrene via Anhydrous t-Butylhydroperoxide Catalyzed by Supported Au/Fe(OH)₃

WANG Ya-Li¹, SUN Jian-Hong², XIANG Dan¹, WANG Lu¹, SUN Jian-Min¹*, XIAO Feng-Shou¹

1. State Key Laboratery of Inorganic Synthesis and Preparation Chemistry, College of Chemistry, Jilin University, Changchun 130012, China;
2. Medical Business School, Guangdong Pharmaceutical University, Guangzhou 510006, China

Received:2007-06-29 Revised:1900-01-01 Online:2008-01-10 Published:2008-01-10
Contact: SUN Jian-Min

Abstract

Abstract: This paper reports the epoxidation of styrene by t-butyl hydroperoxide(TBHP) over the Au/Fe(OH)₃ catalyst prepared by co-precipitation method. The influences of calcination temperature, chemical states of Au and Fe, gold loadings of the catalyst and reaction time on the activity of styrene epoxidation are studied in detail. The results suggest that the conversion and selectivity of styrene epoxide are significantly influenced by the calcination temperature and Au loadings.Au/Fe(OH)₃ with a mass fraction 4.67% shows the best activity to the epoxidation of styrene, the conversion is 84.1% and selectivity is 71.5% under the reaction condition of 80 ℃ for 3 h. The XRD, XPS and Fe Mössbauer spectra indicate that Au and Fe chemical states are responsible for the good activity of Au/Fe(OH)₃ catalyst. The synergistic effect of Au³⁺and Fe(OH)₃ leads to its good activity for the styrene epoxidation.

Key words: Cationic gold, Fe(OH)₃ support, Styrene, Epoxidation, t-Butylhydroperoxide

CLC Number:

O643.1

TrendMD:

WANG Ya-Li¹, SUN Jian-Hong², XIANG Dan¹, WANG Lu¹, SUN Jian-Min¹*, XIAO Feng-Shou¹. Epoxidation of Styrene via Anhydrous t-Butylhydroperoxide Catalyzed by Supported Au/Fe(OH)₃[J]. Chem. J. Chinese Universities, doi: .

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Epoxidation of Styrene via Anhydrous t-Butylhydroperoxide Catalyzed by Supported Au/Fe(OH)₃

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