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Se estudió la oxidación de 2-mercaptoetanol y propanotiol con ftalocianinas de Co encapsuladas en zeolitas X e Y con diferente fuerza básica, generada por intercambio de cationes alcalinos. La oxidación se realizó en ausencia de NaOH y en condiciones de reacción similares al proceso MEROX industrial. Se estableció una correlación entre la actividad oxidativa y la fuerza básica del catalizador, se obtuvo una escala relativa de fuerza básica de los sólidos, como función del corrimiento de la banda de 407 nm del yodo. Se deduce que la fuerza básica del sólido es suficiente para promover la reacción de formación del disulfuro.
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