Zobrazeno 1 - 10 of 129 pro vyhledávání: '"Rochel M. Lago"'
1
Akademický článek
Use of iron mine tailing as fillers to polyethylene
Autor: Ítalo R. Coura, Ottavio R. D. R. Carmignano, Ana Pacheli Heitmann, Fernando S. Lameiras, Rochel M. Lago, Patrícia S. de O. Patricio
Publikováno v: Scientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
Abstract The iron mine tailings accumulation in dams is an environmental and economic problem. The composite based on high-density polyethylene/iron mine tailing production for the application of wood plastic and some items of domestic plastic indust
Externí odkaz: https://doaj.org/article/78e89b2416f64c3f8ebcc3b1c5bb0487
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2
Akademický článek
Magnetic Amphiphilic Composites Applied for the Treatment of Biodiesel Wastewaters
Autor: Bruno R. S. Lemos, Ana Paula C. Teixeira, José D. Ardisson, Waldemar A. A. Macedo, Luis E. Fernandez-Outon, Camila C. Amorim, Flávia C. C. Moura, Rochel M. Lago
Publikováno v: Applied Sciences, Vol 2, Iss 2, Pp 513-524 (2012)
In this work, new magnetic amphiphilic composites were prepared by chemical vapor deposition with ethanol on the surface of hydrophilic natural chrysotile matrix containing Fe catalyst. XRD, Raman, Mössbauer and SEM analyses suggest the formation of
Externí odkaz: https://doaj.org/article/7d7605b7798d47e993087ecde49fc55d
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3
Akademický článek
Influência da temperatura e da natureza do catalisador na polimerização do glicerol Influence of temperature and nature of the catalyst on glycerol polymerization
Autor: Miguel de A. Medeiros, Jeob de C. Rezende, Maria H. Araújo, Rochel M. Lago
Publikováno v: Polímeros, Vol 20, Iss 3, Pp 188-193 (2010)
Neste trabalho, a polimerização do glicerol na presença de catalisador ácido (H2SO4 ou H3PO4) e básico (NaOH), para produzir resinas termofixas foi investigada. Os resultados mostraram que as variáveis como a temperatura de reação, o tipo e a
Externí odkaz: https://doaj.org/article/0d1ced139fc245e1ae08289539653c3c
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4
Akademický článek
Hidrólise parcial da superfície do polyethylene terephthalate (PET): transformando um rejeito em um material de troca catiônica para aplicação ambiental Partial hydrolysis of pet surface: transforming a plastic waste into a material with cationic exchange properties for environmental application
Autor: Marcelo G. Rosmaninho, Erika Jardim, Gilmara L. Ferreira, Maria H. Araújo, Rochel M. Lago, Flávia C. C. Moura
Publikováno v: Química Nova, Vol 32, Iss 6, Pp 1673-1676 (2009)
In this work it is proposed a simple and versatile undergraduate chemical experiment in polymer and environmental technology based on the process of polyethylene terephthalate (PET) hydrolysis. Polyethylene terephthalate from post-consume bottles is
Externí odkaz: https://doaj.org/article/122c53080a534219b29ac6da048d9974
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5
Akademický článek
O estímulo ao empreendedorismo nos cursos de química: formando químicos empreendedores Stimulating entrepreneurship in chemistry courses: the formation of entrepreneurial chemists
Autor: Maria H. Araújo, Rochel M. Lago, Luiz C. A. Oliveira, Paulo R. M. Cabral, Lin Chih Cheng, Louis Jacques Filion
Publikováno v: Química Nova, Vol 28, Pp S18-S25 (2005)
The Universities, in Brazil and all over the world are currently going through a "second revolution" in which the socio-economical development is incorporated as part of their mission and science and knowledge play a key role for the development of t
Externí odkaz: https://doaj.org/article/bdddcf01c0614a0c9be142529c742ecf
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6
Akademický článek
'Spin-Off' acadêmico: criando riquezas a partir de conhecimento e pesquisa Academic Spin-Off: creating wealth from knwoledge and research
Autor: Maria H. Araújo, Rochel M. Lago, Luiz C. A. Oliveira, Paulo R. M. Cabral, Lin Chih Cheng, Cândido Borges, Louis Jacques Filion
Publikováno v: Química Nova, Vol 28, Pp S26-S35 (2005)
Technology companies created from University research are known as "Academic Spin-Off" (ASO). These innovative companies play an important role for the technological, economical and social development of a country. This work discusses some aspects of
Externí odkaz: https://doaj.org/article/5446879cdc6a4ff0819fb28ffc726c55
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9
Biphasic reaction of glycerol and oleic acid: Byproducts formation and phase transfer autocatalytic effect
Autor: Adriana Barbosa Salviano, Rodinei Augusti, Mariana Gomes, Fernanda Gomes de Mendonça, Rochel M. Lago, Mariana Rúbia Gonçalves dos Santos, Izadora R. S. Menezes, Marina Jurisch, Guilherme Dias Rodrigues, Paulo Sérgio Martins
Publikováno v: Catalysis Today. 344:227-233
This work investigates two new aspects of the biphasic esterification reaction of glycerol (G) and oleic acid (A), i.e. the formation of several oxidation/dehydration co-products and the effect of the ester products as phase transfer agents to accele
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8a63e7f5b45791dc0bda6901932f7537
https://doi.org/10.1016/j.cattod.2019.02.011
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10
Iron Ore Tailings: Characterization and Applications
Autor: Sara Silveira Vieira, Ana Paula C. Teixeira, Fernando Soares Lameiras, Ottávio Carmignano, Paulo Roberto Gomes Brandão, Rochel M. Lago
Publikováno v: Journal of the Brazilian Chemical Society v.32 n.10 2021
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society, Volume: 32, Issue: 10, Pages: 1895-1911, Published: 01 OCT 2021
Currently, approximately 1.4 billion tons per year of iron ore tailing wastes (IOT) are generated, mainly in Australia, Brazil, and China. This work describes the characterization and application of two typical IOT, i.e., fine and coarse wastes. The
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::efe76c41cc0952906411b8e1ce41ed59
https://doi.org/10.21577/0103-5053.20210100
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