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Revista Facultad de Ingeniería Universidad de Antioquia
Print version ISSN 0120-6230On-line version ISSN 2422-2844
Abstract
ALARCON, Edwin; VILLA, Aída Luz and MONTES DE CORREA, Consuelo. Effect of Sn-MCM-41 hydrothermal synthesis conditions on nopol production. Rev.fac.ing.univ. Antioquia [online]. 2009, n.49, pp.19-29. ISSN 0120-6230.
Several catalysts were prepared by hydrothermal synthesis of Sn-MCM-41 at room temperature using SnCl22H2O as precursor salt. Catalysts were characterized by TPD of ammonia, FTIR of adsorbed pyridine and TPR of H2. The reactivity of the synthesized materials for the Prins condensation of β-pinene with paraformaldehyde to obtain nopol was explained in terms of the type of acidity. The most active catalysts showed medium strength acidity. Materials synthesized under pH control and by adding the metal source as a solid, exhibited medium strength acidity.
Keywords : Sn-MCM-41; nopol; β-pinene; Prins Reaction; SnCl2; hydrothermal synthesis; TPDA.