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Título: OBTAINING CHROMIUM OXIDE FROM FINE FECR HIGH-CARBON ALLOY
Autor: WALTER EDUARDO LAZO MALAGA
Colaborador(es): EDUARDO DE ALBUQUERQUE BROCCHI - Orientador
Catalogação: 23/MAR/2010 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=15410&idi=1
[en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=15410&idi=2
DOI: https://doi.org/10.17771/PUCRio.acad.15410
Resumo:
The investigation main motivation is to combine the growing chromium demand for specific applications with the reuse of a low value Cr-Fe-carbon alloy. Thus, it has been studied the possibility of recovering chromium, in the oxide form, from fines generated in the production of Fe-Cr High Carbon. Initially, the effect of relevant variables (temperature, ratio of reactants) on the alloy roasting with Na and Mg hydroxides, were studied. Then, the chromate solubilization followed by the chromium oxide precipitation have been carried out. The materials involved in the work have characterized by chemical analysis, DRX and MEV/EDS. The qualitative results indicated that the method can be applied but further experiments has to be carried out to optimize the process.
Descrição: Arquivo:   
COVER, ACKNOWLEDGEMENTS, RESUMO, ABSTRACT, SUMMARY AND LISTS PDF    
CHAPTER 1 PDF    
CHAPTER 2 PDF    
CHAPTER 3 PDF    
CHAPTER 4 PDF    
CHAPTER 5 PDF    
CHAPTER 6 PDF    
REFERENCES PDF