Study of Activation Methods of Silicates for Industrial Utilization

• Grant number: 95/00544-0
• Support Opportunities: Research Projects - Thematic Grants
• Start date: June 01, 1996
• End date: April 30, 2001
• Field of knowledge: Engineering - Chemical Engineering - Chemical Technology
• Principal Investigator: Pérsio de Souza Santos
• Grantee: Pérsio de Souza Santos
• Host Institution: Escola Politécnica (EP). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated research grant(s): 97/01781-1 - Nickel, iron-containing clay minerals from niquelandia deposit, brazil: characterization and behavior under thermal reducing conditions., AR.EXT

Abstract

The industrial chemistry group (Chemical Engineering Department - Polytechnique School - University of São Paulo) has been making researchs for many years in synthesis, modification and activation of silicates (mainly natural Brazilian clays and synthetic zeolites), using different processes (for instance, delamination, intercalation and pillaring, in the case of clays), in order to develop or to increase some technological properties. The characterization of both raw materials and activated products is made mainly by x-ray diffraction and by determinations of surface area and macro-, meso- and micro- porosities, as the surface activity is strongly dependent of surface area and cristalline structure or the powders. The objective of the project is to stablish adequate experimental conditions for the production of some active solids potentialy interesting for the chemical industry using as far natural Brazilian silicates as synthetic materials. (AU)