An Efficient Catalytic Approach for Epoxidation of Styrene over Activated Marble Powder

Jyothi Yadagiri, Hari Prasad Reddy Kannapu, Young-Woong Suh, Veera Somaiah Puppala, Seetha Rama Rao Kamaraju, David Raju Burri

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Abstract

Styrene to styrene epoxide is conducted for the first time over marble powder (MP), consisting of CaO (62.12%), MgO (26.8%), SiO2 (9.24%) and minor amount of Fe (1.94%), Na (0.70%), P (0.019%), K (0.11%) and Mn (0.13%) under aqueous t-butyl hydroperoxide as a simple and green process. Due to the calcium enriched marble, higher basicity (ca. CO2 3980 μ mol g−1) was observed from temperature programmed desorption (TPD) of CO2. The excellent catalytic activity with styrene conversion of 98% and styrene epoxide selectivity of 84% during the course of recyclability test for five consecutive cycles is mainly attributed to the constant basicity of the marble.

Original languageEnglish
Pages (from-to)8473-8478
Number of pages6
JournalChemistrySelect
Volume3
Issue number29
DOIs
Publication statusPublished - 2018 Aug 7

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Keywords

  • Activated marble powder
  • TBHP
  • basicity
  • styrene
  • styrene epoxide

Cite this

Yadagiri, J., Kannapu, H. P. R., Suh, Y-W., Puppala, V. S., Kamaraju, S. R. R., & Burri, D. R. (2018). An Efficient Catalytic Approach for Epoxidation of Styrene over Activated Marble Powder. ChemistrySelect, 3(29), 8473-8478. https://doi.org/10.1002/slct.201801055