Banca de QUALIFICAÇÃO: EMANUEL BRUNO COSTA DANTAS ELIAS

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : EMANUEL BRUNO COSTA DANTAS ELIAS
DATE: 05/06/2025
TIME: 14:00
LOCAL: Auditório do CCET
TITLE:

VALUATION OF BY-PRODUCTS FROM THE METALLIC SILICON INDUSTRY IN THE SYNTHESIS OF ZEOLITES

KEY WORDS:

Zeolites. Industrial by-product. Alternative silica. Crystallinity. Circular economy.

PAGES: 106
BIG AREA: Engenharias
AREA: Engenharia de Materiais e Metalúrgica
SUBÁREA: Materiais Não-Metálicos
SPECIALTY: Cerâmicos
SUMMARY:

This dissertation explores the valorization of a by-product from the silicon metal industry, supplied by LIASA, as a sustainable alternative to commercial silica for the synthesis of zeolites with technological potential. The by-product was characterized using various techniques (XRD, XRF, TG, FT-IR, SEM, and EDS), revealing an amorphous composition with high SiO₂ content. The experimental methodology involved the synthesis of zeolites of the LTA, FAU (NaX), mordenite, and MCM-22 types, following both standard procedures and routes incorporating the by-product as the silicon source. Kinetic studies were conducted to determine optimal crystallization conditions, indicating that the by-product performs comparably to commercial reagents. The results confirm the feasibility of replacing conventional silica sources with this industrial residue, fostering circular economy practices and supporting more sustainable processes in the field of porous materials

COMMITTEE MEMBERS:
Presidente - 1308577 - SIBELE BERENICE CASTELLA PERGHER
Interna - 349770 - DULCE MARIA DE ARAUJO MELO
Externo à Instituição - ADONAY RODRIGUES LOIOLA - UFC