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Partículas rugosas de sílica híbrida aplicadas na transesterificação catalítica
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQCâmpus São Carlos, 2019-03-15)
Heterogeneous catalysts are potentially responsible for reducing the cost of producing biodiesel, due to its reusability or use in continuous process. As-synthesized hybrid silicas, containing siloxy sites, can be used as ...
Short synthesis of noscapine, bicuculline, egenine, capnoidine, and corytensine alkaloids through the addition of 1-siloxy-isobenzofurans to imines
(PERGAMON-ELSEVIER SCIENCE LTD, 2010)
As-synthesized TEA-BEA zeolite: Effect of Si/Al ratio on the Knoevenagel condensation
(Elsevier B.V., 2015)
As-synthesized TEA-BEA zeolite: Effect of Si/Al ratio on the Knoevenagel condensation
(Elsevier B.V., 2015-01-15)
The zeolite with BEA structure has been obtained using different Al amounts in the presence of tetraethylammonium as a structure directing agent. The effect of the Si/Al molar ratio on the crystal size, morphology, yield, ...
As-synthesized TEA-BEA zeolite: Effect of Si/Al ratio on the Knoevenagel condensation
(Elsevier B.V., 2015)
Avaliação do catalisador CTA-MCM-41, modificado por poliacrilatos, na transesterificação de monoéster
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQ, 2014-03-24)
The silica hybrid CTA-MCM-41 (where CTA is the cetyltrimethylammonium cation) was synthesized and used in the transesterification of ethyl acetate with methanol. This is a model reaction used to test basic catalysts for ...
Preparação e caracterização de sílicas híbridas com surfactantes catiônicos
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQCâmpus São Carlos, 2018-02-16)
The silica with structure MCM-41 has a hexagonal mesoporous arrangement with one dimensional pore system. This silica as synthesized contains cations (usually the CTA+) in your pores and catalytic sites with basic character ...
Surfactant containing Si-MCM-41: An efficient basic catalyst for the Knoevenagel condensation
(Applied Catalysis A: General, 2006)
Si-MCM-41 molecular sieves, which are largely used in a number of acid and redox catalyzed reactions, as reported by the literature, were used as basic catalyst for the Knoevenagel condensation. This reaction involves the ...
Thermolysis of octa (hydridodimethylsiloxyl) octasilsesquioxane in pyridine media and subsequent toluidine blue O adsorption
(Elsevier B.V., 2004-08-31)
This work describes the synthesis of octa (hydridodimethylsiloxyl) octasilsesquioxane, (Q(8)M(8)(H)) and its thermolysis in pyridine media. The new compound called CPy was characterized by FTIR, NMR-MAS, XRD, MEV spectroscopies ...