Logo PUC-Rio Logo Maxwell
ETDs @PUC-Rio
Estatística
Título: TIO2 OBTAINED THROUGH ILMENITE CHLORINATION AND SEQUENTIAL CHARACTERIZATION OF THE RELATED MATERIALS
Autor: LUDY MARGARITA CACERES MONTERO
Colaborador(es): EDUARDO DE ALBUQUERQUE BROCCHI - Orientador
IVAN GUILLERMO SOLORZANO NARANJO - Coorientador
Catalogação: 18/ABR/2017 Língua(s): PORTUGUESE - BRAZIL
Tipo: TEXT Subtipo: THESIS
Notas: [pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio.
[en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio.
Referência(s): [pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=29677&idi=1
[en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=29677&idi=2
DOI: https://doi.org/10.17771/PUCRio.acad.29677
Resumo:
In the titanium industry, ilmenite (FeOTiO2) is to be used as an alternative raw material with potential for obtaining TiCl4 by chlorination, and afterwards to be used as precursor of TiO2 and metal Ti. Moreover, iron chlorides formed this process, can be used as starting material for the formation of double salts with potential applications in thermal energy storage in solar power plants. Starting from these premises, this work describes the study of chlorination of a granulated material rich in ilmenite, and the subsequent separation of gaseous products formed, through the use of a salt column. Physicochemical assessments (thermodynamics and kinetics) in the chlorination stage, was studied the effects of the main operating variables (chlorine flow, temperature, percentage of reducing agent partial pressure of chlorine) on the rate and yield of the reaction. In the study dedicated to separating the formed gaseous chlorides, was determined the behavior and efficiency of a salt column of fixed bed. (bed salt, with generic form MClx), through the selective adsorption of iron chloride and the likely formation of double salt FeCl3-MClx. For the neutralization of the waste gases containing excess chlorine from the process, they were used with alkaline solutions that could be full control of the gases released into the atmosphere. The sequencial characterization of the materials involved was made using techniques of X-Ray Fluorescence (XRF), Scanning Electron Microscopy (SEM), energy dispersive spectroscopy (EDS), X-Ray Diffraction (XRD) and Transmission Electron Microscopy (TEM). The results indicated the feasibility of formation of TiO2 rutile, when produced by direct chlorination), and TiO2 anatase (when produced by carbochlorination).
Descrição: Arquivo:   
COMPLETE PDF