Utilização de microemulsões para a impregnação dos metais Ni2 + e Fe3 + em superfícies mesoporosas (MCM - 41).

Abstract

MCM-41 is classified as a mesoporous molecular sieve, which has favorable conditions for the application in petrochemical industry, due to pore size and surface area. But the big problem of this material is the lack of acidity needed to be used as catalyst. For this to occur it is necessary to the impregnation of metals to achieve a desirable acidity. Studies with this material have been developed in several areas. To the develop this work was used as agents capturing of metals the microemulsion systems, appearing as an excellent alternative for reducing the surface tension between liquid-liquid, solid-liquid and liquid-gas. The study was conducted in stages that were provided obtaining from the surfactant, the development of microemulsion systems, metal extraction by microemulsion until impregnation on MCM-41. The impregnation process in mesoporous surfaces MCM- 41 was characterized by technique EDX (Energy dispersive X-ray).