Results 1 to 10 of about 12,589 (198)
USE OF AGENTS OXIDANTS/PRECIPITATING PERMANGANATE/ CARBONATE PEROXIDE /UREA FOR SELECTIVE PRECIPITATION OF CERIUM ION [PDF]
Tecnologia em Metalurgia, Materiais e Mineração, 2014 The separation of mixtures of rare earth elements (REE) is difficult to perform due to the similarities of their chemical and physical properties. Literature report the particular property in Ce ion oxidize in contact with strong oxidizing agents and ...
Flávia Alves Ferreira +2 more
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A DFT Study of the Reaction of Acrylamide with L-Cysteine and L-Glutathione
Molecules, 2022 Thermal processing of certain foods implies the formation of acrylamide, which has been proven to provoke adverse effects on human health. Thus, several strategies to mitigate it have been developed.
Sandra Ramirez-Montes +4 more
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ESTUDO DE BENEFICIAMENTO QUÍMICO E FÍSICO E CARACTERIZAÇÃO DE BAUXITAS DO PARÁ
Holos, 2012 As camadas de bauxita cristalizada (BC) e bauxita cristalizada amorfa (BCA) que compõem o perfil geológico do nordeste do Pará foram submetidas às etapas de beneficiamento e adequadas aos ensaios de bancada, sendo submetidas ao estudo da influência do pH
Diego Seixas Gomes Almeida +5 more
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Membranes, 2023 Water polluted by discarded heavy metals such as lead is creating a global pollution problem. In this work, adsorption of Pb(II) was realized in batch studies by a hybrid membrane of cellulose acetate with ZnO particles.
Irma Pérez-Silva +3 more
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Holos, 2014 Neste trabalho, as etapas de beneficiamento e de caracterização do quartzo de Tanhaçu/BA foram realizadas com o propósito de utilizá-lo como matéria-prima para a obtenção de um silício grau metalúrgico (SiGM) com baixo nível de impurezas.
Fernanda Arruda Nogueira Gomes Silva +5 more
doaj +1 more source
Development of Cellulose Acetate Microcapsules with Cyanex 923 for Phenol Removal from Aqueous Media
Journal of Chemistry, 2018 Microcapsules of cellulose acetate with Cyanex 923 were prepared and used in this study for phenol removal from water and synthetic textile wastewater.
Irma Pérez-Silva +4 more
doaj +1 more source
Geogaceta, 2023 Los xenolitos granulíticos del volcán de La Encomienda (Campo Volcánico de Calatrava) representan un conjunto de composición félsica peralumínica.
David Orejana García +2 more
doaj +1 more source
ESTUDO DE SÍNTESE E TRANSIÇÃO ENTRE AS FASES ZEOLÍTICAS SODALITA E CANCRINITA
Holos, 2014 Para a síntese hidrotermal das zeólitas foi utilizado como fonte de alumínio e de silício o caulim da região Borborema-Seridó (RN/PB) in natura e tratado termicamente a 500, 700 e 900 °C por 2 horas.
Fernanda Arruda Nogueira Gomes Silva +6 more
doaj +1 more source
Anais da Academia Brasileira de Ciências, 2007 Gahnite electron probe microanalyses from three pegmatites (Mirador, Capoeira and Quintos) of the Borborema Pegmatitic Province in northeastern Brazil allowed to determine molar compositions ranging from 86.22 to 95.41 mol% gahnite (ZnAl2O4), 1.51 to 6 ...
Dwight R. Soares +3 more
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A computational study of the potential bioactivity of hibiscus and garcinia acids against SARS-CoV-2 [PDF]
Journal of the Serbian Chemical SocietyA computational chemical study was conducted on the diastereoisomers of hibiscus acid (HA) and garcinia acid (GA), investigating their docking capabilities with the main protease (6LU7) of SARS-CoV-2.
López-Orozco Wendolyne +3 more
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