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An Efficient Catalytic Approach for Epoxidation of Styrene over Activated Marble Powder
- Yadagiri, Jyothi;
- Kannapu, Hari Prasad Reddy;
- Suh, Young-Woong;
- Puppala, Veera Somaiah;
- Kamaraju, Seetha Rama Rao;
- 외 1명
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5초록
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 mu 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.
키워드
Activated marble powder; basicity; styrene; styrene epoxide; TBHP; LIQUID-PHASE EPOXIDATION; NATURAL DOLOMITIC ROCK; SELECTIVE OXIDATION; BIODIESEL SYNTHESIS; CALCIUM-OXIDE; COMPLEXES; CLAY; MGO
- 제목
- An Efficient Catalytic Approach for Epoxidation of Styrene over Activated Marble Powder
- 저자
- Yadagiri, Jyothi; Kannapu, Hari Prasad Reddy; Suh, Young-Woong; Puppala, Veera Somaiah; Kamaraju, Seetha Rama Rao; Burri, David Raju
- 발행일
- 2018-08
- 유형
- Article
- 저널명
- CHEMISTRYSELECT
- 권
- 3
- 호
- 29
- 페이지
- 8473 ~ 8478