IVONE MULAKO SATO
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Artigo IPEN-doc 27971 Extraction of molybdenum from spent cracking catalysts2019 - KONDO, F.M.; DUARTE, C.L.; SOMESSARI, S.L.; SATO, M.I.; SALVADOR, V.L.R.; LIMA, N.B.; MARTINELLI, J.R.; CALVO, W.A.P.A catalyst is a substance that changes the rate of a reaction. In the petroleum industry, the catalysts are commonly used for Fluid Catalytic Cracking (FCC) and Hydro Catalytic Cracking (HCC), each of them applied in a specific stage. These catalysts are used to facilitate the molecular chains cracking, which will generate a mixture of hydrocarbons. However, the catalyst gradually loses its activity, either by changing its original molecular structure or by its contamination from other petroleum molecules. The application of ionizing radiation (medium-energy electron beam) over these spent catalysts was studied to contribute the extraction of metals or rare-earths of high added-value. Tests conducted with HCC catalysts were used the technique of electron beam irradiation (1.3 MeV) and had as a subject the extraction of Molybdenum. Energy Dispersive X-ray (EDX) analysis was performed on a Shimadzu EDX-720/800HS and X-ray Diffraction (XRD) analysis on a Rigaku MultiFlex. Electron beam irradiation had a positive contribution if compared to traditional thermal and chemical methods. In temperature around 750°C, HCC irradiated catalysts of the lower region have an extraction of Molybdenum (MoO3) yield twice higher compared to non-irradiated ones, in other words 57.65% and 26.24%, respectively.Artigo IPEN-doc 21032 Study of the process for of remelting zirconium alloys in an electric arc furnace2015 - PEREIRA, LUIZ A.T.; SATO, IVONE M.; ROSSI, JESUALDO L.; COSTA, GUILHERME R.; MARTINEZ, LUIS G.Artigo IPEN-doc 10760 Validacao do metodo e avaliacao da incerteza na determinacao de maiores e menores constituintes em solos e sedimentos por WDXRF2005 - SCAPIN, M.A.; SATO, I.M.; SALVADOR, V.L.R.; SCAPIN, V.O.Artigo IPEN-doc 12113 Household dust metal levels in the Sao Paulo metropolitan area2007 - SCAPIN, MARCOS A.; SCAPIN, VALDIRENE O.; SATO, IVONE M.Artigo IPEN-doc 12114 Sulphur removal from used automotive lubricating oil by ionizing radiation2007 - SCAPIN, MARCOS A.; DUARTE, CELINA L.; SATO, IVONE M.Artigo IPEN-doc 15893 Fusao de cavacos de zircaloy por VAR: resultados preliminares2010 - PEREIRA, L.A.T.; MUCSI, C.S.; CORREA, H.P.S.; ORLANDO, M.T.D.; SATO, I.M.; ROSSI, J.L.; MARTINEZ, L.G.Artigo IPEN-doc 10791 Determinacao de componentes inorganicos em plantas medicinais, comercializadas em formas de po (capsulas) e 'in natura', utilizando a tecnica de fluorescencia de raios X por dispersao de comprimento de onda (WDXRF). Determinacao de perfis inorganicos quantitativos2005 - FERREIRA, M.O.M.; SATO, I.M.; SALVADOR, V.L.R.Artigo IPEN-doc 10871 Determinacao dos teores de Si e Al soluvel em argilomionerais por espectrometria de fluorescencia de raios X (WDXRFS)2002 - SCAPIN, M.A.; SCAPIN, V.O.; SALVADOR, V.L.; SATO, I.M.; LIMA, N.B.Artigo IPEN-doc 19421 Electron beam application for regeneration of catalysts used in refinery cracking units2013 - KONDO, FERNANDO M.; DUARTE, CELINA L.; SATO, IVONE M.; SALVADOR, VERA L.R.; CALVO, WILSON A.P.Artigo IPEN-doc 19403 Evaluation of the wood CCA preservative treatment process of eucaliptus (eucaliptus ssp) by X-ray fluorescence technique2013 - PEREIRA JUNIOR, SERGIO M.; SALVADOR, VERA L.R.; SATO, IVONE M.