Inorganic Pigments
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Spectroscopic Properties of pigment Li2-xZn1-xPrxTi3O8
Inorganic compounds doped with rare earths (Ce3+, Pr3+, Nd3+, Sm3+, Eu 3+, Gd 3+, Tb 3+, Tm3+) have been used in various applications including light-emitting devices such as fluorescent lamps, cathode ray tubes, lasers and inorganic pigments. In this study, Pr3+ is doped in spinel Li2ZnTi3O8 system and synthesized by the polymeric precursor method, which is
Mat. Res.. Publicado em: 14/06/2016
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2. Yearly variation of bacterial production in the Arraial do Cabo protection area (Cabo Frio upwelling region): an evidence of anthropogenic pressure
Arraial do Cabo is where upwelling occurs more intensively on the Brazilian coast. Although it is a protection area it suffers anthropogenic pressure such as harbor activities and sporadic sewage emissions. Short-time studies showed a high variability of bacterial production (BP) in this region but none of them evaluated BP during long periods in a large spa
Braz. J. Microbiol.. Publicado em: 2013-12
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3. Vidro de sistema Li2O-ZrO2-SiO2 como alternativa para síntese de pigmento cerâmico contendo resíduo industrial rico em Fe2O3 / Synthesis of inorganic pigments from glass-ceramic system Li2O-ZrO2-SiO2 and waste from the metallurgical industry. 2012
Recentemente, na indústria cerâmica tradicional, tem havido um interesse crescente na obtenção da inclusão de pigmentos na qual a temperatura de queima seja estável de tal forma que ação dos vidros fundidos não interfiram no produto final. No setor de revestimento, cuja seleção é fortemente influenciada pelo aspecto visual da superfície decorada
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/06/2012
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4. Utilização de quitina e mordente na remoção do corante preto Remazol B por adsorção / Use of chitin and mordant in the removal of Remazol black B dye by adsorption
In this work was investigate the physical-chemical treatment for the removal Remazol Black B dye reagent by adsorption using chitin isolated from industrial waste (exoskeleton shrimp). The extraction of chitin was made from industrial waste of shrimp (exoskeleton of shrimp) in the decolorization treatment with NaClO, followed by deproteinization of alkali so
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/05/2012
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5. ESTUDO DOS SISTEMAS CeO2(1-x) :Pr6O11(x); CeO2(1-x):Fe2O3(x) E CeO2(0,95-x): Pr6O11(0,05):Fe2O3(x) PARA APLICAÇÃO COMO PIGMENTOS INORGÂNICOS DE BAIXA TOXICIDADE
This study focused on the Cerium oxide (CeO2) based pigmenting systems, doped with Praseodymium oxide (Pr6O11) and hematite (Fe2O3 iron oxide) synthesized through the solid state reaction (OM oxide mixture) and the Pechini method. Simultaneously, CeO2-Pr6O11-Fe2O3 ternary system pigments were synthesized through OM, with the addition of mineralizers. The sam
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/03/2012
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6. Nano-Ceramic Inorganic Pigments Synthesis for Route Polymeric Precursors / Síntese de pigmentos cerâmicos inorgânicos nanométricos pela rota dos precursores poliméricos
Considerando a evolução tecnológica em constante crescimento e a necessidade de técnicas de produção na área de cerâmica que avancem em conjunto, buscou-se neste estudo, a pesquisa e desenvolvimento do método dos precursores poliméricos para obtenção de pigmentos cerâmicos inorgânicos. Método que proporciona qualidade a obtenção dos pós pre
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/02/2011
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7. Síntese e caracterização de espinélios a base de Cu, Fe e Cr para pigmentos cerâmicos
Pigmento inorgânico é formado por uma rede hospedeira, na qual se integra o componente cromóforo (normalmente um cátion de metal de transição) e os possíveis componentes modificadores, que estabilizam, conferem ou reafirmam as propriedades pigmentantes. Dentre os pigmentos, as estruturas tipo espinélio se destacam por possuir ampla importância tecno
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/12/2010
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8. PRODUÇÃO DE PIGMENTOS INORGÂNICOS A BASE DE ZrSiO4 COM INCORPORAÇÃO DE PASTA ELETROLÍTICA DE PILHAS / PREPARATION OF INORGANIC PIGMENTS BASED ON THE ZrSiO4 OXIDE FROM A MIXTURE OF AN ELECTROLYTIC-PASTE WASTE OF ALKALINE BATTERIES AND ZrSiO4
Throughout the times, new pigment systems have been gradually developed. In the nowadays, the development of ceramic pigments represents a part of the Materials Science, where there is a lack of concepts, roles and strategies, which in goal allows the developing of new rotes of preparing or pigments, in both scientific and technological areas. This work deal
Publicado em: 2009
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9. Reciclagem do resíduo de cromo da indústria do curtume como pigmentos cerâmicos. / Recycling of chromium waste of leather industry as ceramic pigments.
In this work, an alternative for recycling the chromium waste from the leather industry, incorporating it to formulations of ceramic pigments was studied. Firstly, the characterization of chromium waste was performed, as well as the extraction of soluble salts, chlorides, sulfates, ad carbonates. After that, the calcination, for the elimination of the organi
Publicado em: 2006
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10. Evaluation of the anticorrosive properties of environmental friendly inorganic corrosion inhibitors pigments
Neste trabalho foram estudadas as propriedades anticorrosivas de cinco pigmentos inorgânicos comerciais considerados ecologicamente corretos: fosfato de zinco (ZP), molibdato de zinco (ZM), molibdato de zinco e cálcio (ZCM), fosforomolibdato de zinco (ZPM) e fosforomolibdato de zinco e cálcio (ZCPM). Amostras de aço AISI 1010 foram imersas em solução a
Journal of the Brazilian Chemical Society. Publicado em: 2005-08
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11. Control of heme metabolism with synthetic metalloporphyrins.
Studies with synthetic metal-porphyrin complexes in which the central iron atom of heme is replaced by other elements indicate that those heme analogues that cannot be enzymatically degraded to bile pigments possess novel biological properties that may have considerable clinical as well as experimental value. Such studies have revealed the important role tha
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12. Ectothiorhodospira mobilis Pelsh, a Photosynthetic Sulfur Bacterium Depositing Sulfur Outside the Cells1
From salt flats on the Galapagos Islands, two strains of a red photosynthetic bacterium were isolated and identified as Ectothiorhodospira mobilis, an organism first described by Pelsh in 1937. The cells are curved in a short spiral, 0.7 to 1.0 μ wide and 2.0 to 4.8 μ long. They are motile by a polar tuft of flagella. Cells contain several large stacks of