Search Results - "Castro Dantas, Tereza N."

Investigations on the adsorption, wettability and zeta potential of anionic surfactant in limestone by NEVES, ALLAN M., SANTANNA, VANESSA C., BARILLAS, JENNYS L.M., DANTAS, TEREZA N. CASTRO, OLIVEIRA, KATHERINE C., GÓIS, ALISSON G.B.

“…Abstract The understanding of the mechanisms that affect oil production in carbonaceous reservoirs has become increasingly necessary, particularly in…”
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A new method for extraction and pre-concentration of the heavy metals using a microemulsion system in winsor II equilibrium and determination by HR-CS AAS by Tossi de A. Costa, Emily Cintia, de Castro Dantas, Tereza N., da Silva, Djalma R., de A. Maranhão, Tatiane

“…For the very first time, a microemulsion system in the Winsor II (WII) equilibrium was applied in a sample preparation method for extraction and…”
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Thermo-Oxidative Stability of Mineral Naphthenic Insulating Oils:  Combined Effect of Antioxidants and Metal Passivator by Rabelo Neto, R. Crisóstomo, Lima, Daniel O, Pinheiro, Thauzer D. S, Almeida, Rômulo F, Castro Dantas, Tereza N, Dantas, Michelle S. G, Araújo, M. Adelina S, Cavalcante, Célio L, Azevedo, Diana C. S

“…The oxidation of mineral oils is the most important cause of poor power transformer performance. High voltages, high temperatures, and the presence of oxygen…”
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Experimental study of microemulsion systems applied on formation damage remediation by Lucas, Cláudio R. S., Gurgel Aum, Yanne K. P., De Castro Dantas, Tereza N., Da Silva, Dennys C., De Oliveira, Katherine C., Aum, Pedro T. P.

“…Aromatic solvents, such xylene and toluene, are widely used in the organic damage removal operations, although increasing environmental requirements have…”
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Adsorption of nonionic surfactants in sandstones by Curbelo, Fabíola D.S., Santanna, Vanessa C., Neto, Eduardo L. Barros, Dutra, Tarcílio Viana, Dantas, Tereza N. Castro, Neto, Afonso A. Dantas, Garnica, Alfredo I.C.

“…Adsorption of surfactants from aqueous solutions in porous media is very important in enhanced oil recovery (EOR) of oil reservoirs because surfactant loss due…”
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Molecular behavior of ionic and nonionic surfactants in saline medium by Santos, Francisco Klebson G., Neto, Eduardo L. Barros, Moura, Maria Carlenise P.A., Dantas, Tereza N. Castro, Neto, Afonso A. Dantas

“…The aim of this study was to investigate the molecular behavior of ionic and nonionic surfactants at different salt concentrations. The nonionic surfactants…”
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Depressants in nanoemulsion systems applied to quartz and hematite microflotation by Neitzke, Paula Romyne de Morais Cavalcante, Dantas, Tereza N. Castro, Moura, M. Carlenise P.A., Peres, Antônio E. Clark, Dantas Neto, Afonso Avelino

“…Nanoemulsion systems were investigated in the microflotation of quartz and hematite. Four different depressants were used: Maizena®, soluble starch, amidex,…”
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Study of Microemulsified Systems Applied to Mineral Flotation by Dantas Neto, Afonso A, Dantas, Tereza N. Castro, Moura, M. Carlenise P. A, Barros Neto, Eduardo L, Duarte, Lindemberg J. N

“…An investigation of calcite and fluorite microflotation using microemulsified systems is reported. Several reagents that are commonly used in mineral froth…”
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Adsorption of Oxygenates from Used Transformer Oil Using Surfactant- and Microemulsion-Impregnated Clays by Silva, A. Cristina M, Dantas, Tereza N. Castro, Barros Neto, Eduardo L, Cavalcante, Célio L

“…This paper presents batch adsorption experimental results for oxygenate removal from used transformer oil using surfactant- and microemulsion-impregnated…”
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Ethyl and Isoamyl Alcohols as Cosurfactants in Gel Systems by Castro Dantas, Tereza N, Santanna, Vanessa C, Dantas Neto, Afonso A, Alencar Moura, Maria C. P, Fonseca, José L. C

“…Cosurfactant has a very important role in microemulsified systems and it is largely responsible for their stability, mainly in systems formed by ionic…”
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Reclamation of Used Transformer Oil by Adsorption by Silva, A. Cristina M., Guimarães Albuquerque, Monica C., Cavalcante, Célio L., Castro Dantas, Tereza N., Santos Araujo, M. Adelina

“…This study presents an evaluation of the removal of degradation products from used transformer oil using a commercial activated clay in batch experiments, at…”
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Methodology to break test for surfactant-based fracturing gel by Castro Dantas, Tereza N., Santanna, Vanessa C., Dantas Neto, Afonso A., Curbelo, Fabíola D.S., Garnica, Alfredo I.C.

“…Surfactant-based fracturing gels are considered as clean gels due to the absence of insoluble residues in their composition. This kind of fluid has been…”
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Composição química do óleo fixo de Croton cajucara e determinação das suas propriedades fungicidas by Souza, Marco André A., Souza, Sonia R., Veiga Jr, Valdir F., Cortez, Janaína K.P.C., Leal, Rosélia de Sousa, Dantas, Tereza N. Castro, Maciel, Maria Aparecida M.

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Composição química do óleo fixo de Croton cajucara e determinação das suas propriedades fungicidas by Souza, Marco André A., Souza, Sonia R., Veiga Jr, Valdir F., Cortez, Janaína K.P.C., Leal, Rosélia de Sousa, Dantas, Tereza N. Castro, Maciel, Maria Aparecida M.

“…Este trabalho objetivou a obtenção de óleos fixos (OF) das cascas do caule de Croton cajucara via percolação [seguido de fracionamento em coluna cromatográfica…”
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