Výsledky vyhledávání - "Cibele Konzen"

Individual and Combined Effects of the Extractant, Surfactant and Modifier Concentrations on the Droplet Coalescence Time of the Primary Emulsion in the Liquid Surfactant Membrane Extraction Process

Autor: Leandro Dornellas Sampaio Andrade, Estêvão Magno Rodrigues Araújo, Tânia Lúcia Santos Miranda, Fabrício Eduardo Bortot Coelho, Julio Cézar Balarini, Cibele Konzen, Lorena da Costa Nascimento, Adriane Salum

Publikováno v: Advances in Chemical Engineering and Science. :205-214

In this work, the individual and combined effects of the extractant, surfactant and modifier concentrations on the droplet coalescence time of the primary emulsion in the liquid surfactant membrane extraction process were evaluated, through emulsific

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::22a29d7ec43cba6079560c37ac503019
https://doi.org/10.4236/aces.2018.84014

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ESTUDO DO ENVELHECIMENTO ACELERADO DE UM NOVO ÓLEO VEGETAL ISOLANTE, À BASE DE PINHÃO-MANSO, PARA USO EM TRANSFORMADORES ELÉTRICOS

Autor: Vany Perpetua Ferraz, Estêvão Magno Rodrigues Araújo, Fabrício Eduardo Bortot Coelho, Adriane Salum, Cibele Konzen, Tânia Lúcia Santos Miranda, José Maria G. Evangelista Junior

Publikováno v: Revista Brasileira de Energias Renováveis. 7

O presente trabalho foca na avaliação de um novo fluido isolante vegetal para transformadores elétricos de potência à base do óleo de Jatropha curcas. Foi proposta uma metodologia para ensaios de envelhecimento acelerado do óleo, a fim de veri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0dcabc65f2423a740aa09a31bd280a77
https://doi.org/10.5380/rber.v7i4.49896

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Structural characterization of a new dioxamic acid derivative by experimental (FT-IR, NMR, and X-ray) analyses and theoretical (HF and DFT) investigations

Autor: Tatiana R. G. Simões, Humberto O. Stumpf, Bernardo L. Rodrigues, Gilmar P. Souza, Cibele Konzen, Antônio F. C. Alcântara

Publikováno v: Journal of Molecular Structure. 1016:13-21

Very few investigations concerning the crystal structure and chemical properties of dioxamic acids have been related in the literature. This work describes the chemical properties of ortho-phenylenebis(oxamic acid) (2) and its new derivative, hydroge

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7ce60e3537508e481a43bd143496f001
https://doi.org/10.1016/j.molstruc.2012.01.044

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Synthesis and density functional calculations of the new molecule-based magnet precursor [Fe(H2opba-i)(dmso)2]Cl

Autor: Waldemar A. A. Macedo, Hélio A. Duarte, Heitor A. De Abreu, José D. Ardisson, Gilmar P. Souza, Humberto O. Stumpf, Wallace C. Nunes, Antônio F. C. Alcântara, Marcelo Knobel, Cibele Konzen

Publikováno v: Journal of the Brazilian Chemical Society v.17 n.8 2006
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society, Volume: 17, Issue: 8, Pages: 1534-1539, Published: DEC 2006

A new precursor of molecule-based magnetic systems, [Fe(H2opba-i)(dmso)2]Cl (1), with opba = ortho-phenylenebis(oxamato) in an iminoalcohol tautomeric form, was obtained as a product from the reaction between H4opba and FeCl3. Data from elemental ana

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cba1aa3c1a51d22d609c2a70275fed69
https://doi.org/10.1590/s0103-50532006000800008

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A Crystalline Phase Transition and Optical Properties in a Co II Cu II Oxamato‐Bridged Ferrimagnetic Chain

Autor: Marcelo Knobel, Cibele Konzen, Javier Ellena, L.C. Meira-Belo, Humberto O. Stumpf, Antonio C. Doriguetto, Cynthia L. M. Pereira, U. A. Leitão, A.L. Brandl, Nelson G. Fernandes, Yvonne Primerano Mascarenhas

Publikováno v: European Journal of Inorganic Chemistry. 2005:5018-5025

The compound [CoCu(opba)(DMSO)3] (1) [opba = ortho-phenylenebis(oxamato)] has been synthesized and characterized. Its crystal structure has been analyzed by X-ray diffraction techniques at 100 and 298 K. A structural phase-transition has been detecte

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8205af8e302092c9cee1d3fea65038a3
https://doi.org/10.1002/ejic.200500474

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Projeto e montagem de uma unidade piloto para operação de um sistema de membranas líquidas surfatantes utilizando-se uma coluna mecanicamente agitada

Autor: Cibele Konzen

Publikováno v: Repositório Institucional da UFMG
Universidade Federal de Minas Gerais (UFMG)
instacron:UFMG

O presente trabalho teve como principal objetivo o projeto e a montagem de uma unidade piloto para operação de um sistema de membranas líquidas surfatantes (MLS), estudando-se o escoamento e a transferência de massa desse sistema em uma coluna me

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::cbb89b9cecade85220e9f69ca2486dcc

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REMOVED: Influence of Extractant and Modifier on the Demulsification of Surfactant Liquid Membranes

Autor: L.C. Nascimento, Cibele Konzen, Tânia Lúcia Santos Miranda, L.D.S. Andrade, Adriane Salum, Julio Cézar Balarini

Publikováno v: Procedia Engineering. 44:693-694

This article has been removed: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).This article has been removed at the request of the Executive Publisher.This article has been removed because it was pub

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17d302fa9e3a61d06e284ddf1a809388

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Treatment of a wastewater from a galvanizing industry containing chromium(VI) and zinc(II) by liquid surfactant membranes technique

Autor: Vanesa S. Oliveira, Fabrício Eduardo Bortot Coelho, Julio Cézar Balarini, Cibele Konzen, Tânia Lúcia Santos Miranda, Adriane Salum, Estêvão Magno Rodrigues Araújo

Publikováno v: Journal of Environmental Science and Health, Part A. 56(3):289-302

Galvanizing industries generate large amounts of effluents rich in toxic and carcinogenic chromium(VI) species. Effective and sustainable treatments are required to comply with environmental regulations. This work focused on the development of innova

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec140d291a1e541a73b18923beb69431

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Akademický článek

Treatment of a wastewater from a galvanizing industry containing chromium(VI) and zinc(II) by liquid surfactant membranes technique.

Autor: Bortot Coelho, Fabrício E., Oliveira, Vanesa S., Araújo, Estêvão M. R., Balarini, Julio C., Konzen, Cibele, Salum, Adriane, Miranda, Tânia L. S.

Publikováno v: Journal of Environmental Science & Health. Part A. Toxic/Hazardous Substances & Environmental Engineering; 2021, Vol. 56 Issue 3, p289-302, 14p

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