Estudo de um método para agregar valor a resíduos contendo silício

Abstract

The present work seeks, by means of a methodology applied on a bench scale, to analyze the feasibility of using agro-industrial waste, originating from the cassava processing industry as one of the precursors for the synthesis of zeolites, materials with high added value and wide range of use can be applied in several industries such as the textile industry, functionalizing articles The residue was used as a source of silicon in the synthesis with 1: 1 silicon aluminum ratio, going through an extraction step using sodium hydroxide solution 2 mol / L, the aluminum source will come from sodium aluminate. The determination of the silicon concentration obtained in the extraction of the residue will be determined by means of atomic absorption. The synthesized material will be characterized by means of X-ray diffractometry (XRD) and infrared spectroscopy (FTIR) techniques to determine the crystallization time for the intervals of 8 hours, 24 hours, 48 hours and 72 hours by means of relative crystallinity of the samples seeking to ascertain the effect of the synthesis time in relation to the crystallinity of the product obtained. It was possible to obtain highly crystalline materials for the times of 24, 48 and 72 hours, thus validating the use of the waste collected along with the Si extraction and synthesis process, adding value to the waste that would previously be treated as a burden for the company.