| 학회 |
한국화학공학회 |
| 학술대회 |
2013년 가을 (10/23 ~ 10/25, 대구 EXCO) |
| 권호 |
19권 2호, p.2102 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Studies on the Applications of p-TSA Dealuminated Clay Catalyst under Microwave Reactor |
| 초록 |
Microwave induced dealumination of montmorillonite clay was carried out by treating the clay with varied concentrations of para toluene sulphonic acid( p-TSA). The resulting clay was characterized by CEC, XRD, FT-IR, TPD and CV techniques. XRD patterns show an unchanged structure of pristine matrix after the acid action. BET analysis revealed an increase in the surface area and pore volume on p-TSA treatment, indicating formation of voids in the octahedral layer which suggests dealumination. CV studies confirm the formation of an Al-p-TSA complex, suggesting dissolution of aluminium octahedral sheets. The complex subsequently hydrolyses, replacing interlayer cations with Al3+ ions. Similar treatment with mineral acid resulted in clay with enhanced surface area but with reduced CEC, evidently due to the removal of isomorphously substituted Fe and Mg. p-TSA treated clay showed good catalytic activity for alkylation of p-cresol with cyclohexanol and crossed aldol condensation reactions. The p-TSA treated clays retained their activity even after three subsequent runs and is a potential green catalyst for organic transformations. |
| 저자 |
Dr. Ramesh S.1, B.S.Jai Prakash2, Y.S. Bhat2, 문동주1
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| 소속 |
1한국과학기술(연), 2Bangalore Institute of Technology |
| 키워드 |
P-TSA treated clay; Green catalyst; C-alkylation of p-cresol; Crossed aldol condensation
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| E-Mail |
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| 원문파일 |
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