Utiliza??o de tanino e derivados ligno-celul?sicos na prepara??o de areias de fundi??o e briquetes de res?duos vegetais
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFRRJ |
Texto Completo: | https://tede.ufrrj.br/jspui/handle/tede/482 |
Resumo: | The general goal of this work is to evaluate the possibility of utilizing tannin from black wattle and lignocelullosic derivatives in the preparation of foundry sand, as well as to evaluate the utilization of tannins as glueing for the confection of briquettes of vegetal residues. The work has been divided into two chapters, which comprise distinct experiments. In the first chapter tannin and cellulignin were used as constituents of foundry sand for the fabrication of pieces of pure aluminum alloy or aluminum-silicon eutectic alloy (11,0 a 13,0 % of Si). In the second chapter the use of tannin was evaluated in the production of briquettes of vegetal residues for application as a source of energy. The traces of foundry sand normally use clay as glueing and mogul (corn starch) with the goal of enhancing the resistance to compression and workability of the mold thus produced. It is common practice the use of mineral coal as a reducing agent in the mixture, and so the effects of its substitution by cellulignin, because of its high carbon content, were evaluated. Tannin, for its adhesive properties, acted as glueing together with clay, and replaced molasses, which is a component of foundry sand, perfectly. The resistance analysis produced good results and the process will generate molds with good visual aspect and adequate mechanical properties. Sawdust obtained in a eucalyptusprocessing sawmill was used in the confection of the briquettes. Tannin demonstrated great affinity to water in the composition of the standard mixture for briquetting. In natura sawdust, without any beneficiation, was used for briquetting. The results revealed that tannin is effective in the production of briquettes, where acted as an element of adhesion between the sawdust particles. |
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Lelis, Roberto Carlos CostaCPF:49704990634http://lattes.cnpq.br/5175502780570226CPF:49931938749http://lattes.cnpq.br/7125714488209691Barbosa, Jo?o Carlos de Mello2016-04-28T14:56:19Z2010-09-232009-01-13BARBOSA, Jo?o Carlos de Mello. Utiliza??o de tanino e derivados ligno-celul?sicos na prepara??o de areias de fundi??o e briquetes de res?duos vegetais. 2009. 70 f. Disserta??o (Mestrado em Ci?ncias Ambientais e Florestais) - Instituto de Florestas, Universidade Federal Rural do Rio de Janeiro, Serop?dica - RJ, 2009.https://tede.ufrrj.br/jspui/handle/tede/482The general goal of this work is to evaluate the possibility of utilizing tannin from black wattle and lignocelullosic derivatives in the preparation of foundry sand, as well as to evaluate the utilization of tannins as glueing for the confection of briquettes of vegetal residues. The work has been divided into two chapters, which comprise distinct experiments. In the first chapter tannin and cellulignin were used as constituents of foundry sand for the fabrication of pieces of pure aluminum alloy or aluminum-silicon eutectic alloy (11,0 a 13,0 % of Si). In the second chapter the use of tannin was evaluated in the production of briquettes of vegetal residues for application as a source of energy. The traces of foundry sand normally use clay as glueing and mogul (corn starch) with the goal of enhancing the resistance to compression and workability of the mold thus produced. It is common practice the use of mineral coal as a reducing agent in the mixture, and so the effects of its substitution by cellulignin, because of its high carbon content, were evaluated. Tannin, for its adhesive properties, acted as glueing together with clay, and replaced molasses, which is a component of foundry sand, perfectly. The resistance analysis produced good results and the process will generate molds with good visual aspect and adequate mechanical properties. Sawdust obtained in a eucalyptusprocessing sawmill was used in the confection of the briquettes. Tannin demonstrated great affinity to water in the composition of the standard mixture for briquetting. In natura sawdust, without any beneficiation, was used for briquetting. The results revealed that tannin is effective in the production of briquettes, where acted as an element of adhesion between the sawdust particles.O objetivo geral deste trabalho foi avaliar a possibilidade de utiliza??o de tanino de ac?cia negra e de derivados lignocelul?sicos na prepara??o de areias de fundi??o, bem, como avaliar a utiliza??o dos taninos como aglomerante para confec??o de briquetes de res?duos vegetais. O trabalho foi dividido em dois cap?tulos, constituindo experimentos distintos. No primeiro cap?tulo foram utilizados o tanino e a celulignina como constituintes de areia preparadas de fundi??o para a fabrica??o de pe?as em ligas de alum?nio puro ou alum?nio-sil?cio eut?tica (11,0 a 13,0 % de Si). No segundo cap?tulo, avaliou-se a utiliza??o do tanino na obten??o de briquetes de res?duos vegetais para aplica??o como fonte de energia. Os tra?os de areia preparada de fundi??o normalmente usam a argila como aglomerante e o mogul (amido de milho) com a finalidade de melhorar a resist?ncia ? compress?o da areia e a trabalhabilidade do molde produzido. ? pr?tica comum a utiliza??o do carv?o mineral como elemento redutor na mistura, e assim, foram avaliados os efeitos de sua substitui??o pela celulignina, em fun??o do seu teor elevado de carbono. O tanino, por suas propriedades adesivas, atuou como aglomerante em parceria com a argila, e ainda substituiu perfeitamente o mela?o, que ? um componente da areia preparada de Fundi??o, obtendo-se bons resultados na an?lise das resist?ncias, gerando moldes de bom aspecto visual e propriedades mec?nicas adequadas. Na confec??o dos briquetes, foi utilizada serragem obtida em serraria que processa madeira de eucalipto. O tanino demonstrou grande afinidade com a ?gua na composi??o da mistura padr?o para a briquetagem. Na briquetagem, foi utilizada a serragem in natura, sem qualquer tipo de beneficiamento. Os resultados revelaram que o tanino mostrou-se efetivo na fabrica??o de briquetes, onde atuou como elemento de ades?o entre as part?culas de serragem.Made available in DSpace on 2016-04-28T14:56:19Z (GMT). No. of bitstreams: 1 2009 - Jo?o Carlos de Mello Barbosa.pdf: 368412 bytes, checksum: 5ae0ef2040832998eb804e8b2b0fd642 (MD5) Previous issue date: 2009-01-13application/pdfhttps://tede.ufrrj.br/retrieve/14203/2009%20-%20Jo%c3%a3o%20Carlos%20de%20Mello%20Barbosa.pdf.jpghttps://tede.ufrrj.br/retrieve/18492/2009%20-%20Jo%c3%a3o%20Carlos%20de%20Mello%20Barbosa.pdf.jpghttps://tede.ufrrj.br/retrieve/24788/2009%20-%20Jo%c3%a3o%20Carlos%20de%20Mello%20Barbosa.pdf.jpghttps://tede.ufrrj.br/retrieve/31195/2009%20-%20Jo%c3%a3o%20Carlos%20de%20Mello%20Barbosa.pdf.jpghttps://tede.ufrrj.br/retrieve/37549/2009%20-%20Jo%c3%a3o%20Carlos%20de%20Mello%20Barbosa.pdf.jpghttps://tede.ufrrj.br/retrieve/43901/2009%20-%20Jo%c3%a3o%20Carlos%20de%20Mello%20Barbosa.pdf.jpghttps://tede.ufrrj.br/retrieve/50287/2009%20-%20Jo%c3%a3o%20Carlos%20de%20Mello%20Barbosa.pdf.jpghttps://tede.ufrrj.br/retrieve/56755/2009%20-%20Jo%c3%a3o%20Carlos%20de%20Mello%20Barbosa.pdf.jpgporUniversidade Federal Rural do Rio de JaneiroPrograma de P?s-Gradua??o em Ci?ncias Ambientais e FlorestaisUFRRJBrasilInstituto de Florestasac?ciaceluligninaserragemeucaliptobriquetagemblack wattlecelluligninsawdusteucalyptusbriquettingEngenharia de Materiais e Metal?rgicaUtiliza??o de tanino e derivados ligno-celul?sicos na prepara??o de areias de fundi??o e briquetes de res?duos vegetaisUtilization of tannin and lignocellulosic derivatives in the preparation of foundry sands and vegetable residue briquettesinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFRRJinstname:Universidade Federal Rural do Rio de Janeiro (UFRRJ)instacron:UFRRJTHUMBNAIL2009 - Jo?o Carlos de Mello Barbosa.pdf.jpg2009 - Jo?o Carlos de Mello Barbosa.pdf.jpgimage/jpeg1943http://localhost:8080/tede/bitstream/tede/482/17/2009+-+Jo%C3%A3o+Carlos+de+Mello+Barbosa.pdf.jpgcc73c4c239a4c332d642ba1e7c7a9fb2MD517TEXT2009 - Jo?o Carlos de Mello Barbosa.pdf.txt2009 - Jo?o Carlos de Mello Barbosa.pdf.txttext/plain171209http://localhost:8080/tede/bitstream/tede/482/16/2009+-+Jo%C3%A3o+Carlos+de+Mello+Barbosa.pdf.txtab9437db5ecde1e0deb8c0c4fb8dbd9bMD516ORIGINAL2009 - Jo?o Carlos de Mello Barbosa.pdf2009 - Jo?o Carlos de Mello Barbosa.pdfapplication/pdf375138http://localhost:8080/tede/bitstream/tede/482/1/2009+-+Jo%C3%A3o+Carlos+de+Mello+Barbosa.pdfbbfa678478febe6d9ecbe6ac558ea0e8MD51tede/4822021-07-07 10:51:34.538oai:localhost:tede/482Biblioteca Digital de Teses e Dissertaçõeshttps://tede.ufrrj.br/PUBhttps://tede.ufrrj.br/oai/requestbibliot@ufrrj.br||bibliot@ufrrj.bropendoar:2021-07-07T13:51:34Biblioteca Digital de Teses e Dissertações da UFRRJ - Universidade Federal Rural do Rio de Janeiro (UFRRJ)false |
dc.title.por.fl_str_mv |
Utiliza??o de tanino e derivados ligno-celul?sicos na prepara??o de areias de fundi??o e briquetes de res?duos vegetais |
dc.title.alternative.eng.fl_str_mv |
Utilization of tannin and lignocellulosic derivatives in the preparation of foundry sands and vegetable residue briquettes |
title |
Utiliza??o de tanino e derivados ligno-celul?sicos na prepara??o de areias de fundi??o e briquetes de res?duos vegetais |
spellingShingle |
Utiliza??o de tanino e derivados ligno-celul?sicos na prepara??o de areias de fundi??o e briquetes de res?duos vegetais Barbosa, Jo?o Carlos de Mello ac?cia celulignina serragem eucalipto briquetagem black wattle cellulignin sawdust eucalyptus briquetting Engenharia de Materiais e Metal?rgica |
title_short |
Utiliza??o de tanino e derivados ligno-celul?sicos na prepara??o de areias de fundi??o e briquetes de res?duos vegetais |
title_full |
Utiliza??o de tanino e derivados ligno-celul?sicos na prepara??o de areias de fundi??o e briquetes de res?duos vegetais |
title_fullStr |
Utiliza??o de tanino e derivados ligno-celul?sicos na prepara??o de areias de fundi??o e briquetes de res?duos vegetais |
title_full_unstemmed |
Utiliza??o de tanino e derivados ligno-celul?sicos na prepara??o de areias de fundi??o e briquetes de res?duos vegetais |
title_sort |
Utiliza??o de tanino e derivados ligno-celul?sicos na prepara??o de areias de fundi??o e briquetes de res?duos vegetais |
author |
Barbosa, Jo?o Carlos de Mello |
author_facet |
Barbosa, Jo?o Carlos de Mello |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Lelis, Roberto Carlos Costa |
dc.contributor.advisor1ID.fl_str_mv |
CPF:49704990634 |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/5175502780570226 |
dc.contributor.authorID.fl_str_mv |
CPF:49931938749 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/7125714488209691 |
dc.contributor.author.fl_str_mv |
Barbosa, Jo?o Carlos de Mello |
contributor_str_mv |
Lelis, Roberto Carlos Costa |
dc.subject.por.fl_str_mv |
ac?cia celulignina serragem eucalipto briquetagem |
topic |
ac?cia celulignina serragem eucalipto briquetagem black wattle cellulignin sawdust eucalyptus briquetting Engenharia de Materiais e Metal?rgica |
dc.subject.eng.fl_str_mv |
black wattle cellulignin sawdust eucalyptus briquetting |
dc.subject.cnpq.fl_str_mv |
Engenharia de Materiais e Metal?rgica |
description |
The general goal of this work is to evaluate the possibility of utilizing tannin from black wattle and lignocelullosic derivatives in the preparation of foundry sand, as well as to evaluate the utilization of tannins as glueing for the confection of briquettes of vegetal residues. The work has been divided into two chapters, which comprise distinct experiments. In the first chapter tannin and cellulignin were used as constituents of foundry sand for the fabrication of pieces of pure aluminum alloy or aluminum-silicon eutectic alloy (11,0 a 13,0 % of Si). In the second chapter the use of tannin was evaluated in the production of briquettes of vegetal residues for application as a source of energy. The traces of foundry sand normally use clay as glueing and mogul (corn starch) with the goal of enhancing the resistance to compression and workability of the mold thus produced. It is common practice the use of mineral coal as a reducing agent in the mixture, and so the effects of its substitution by cellulignin, because of its high carbon content, were evaluated. Tannin, for its adhesive properties, acted as glueing together with clay, and replaced molasses, which is a component of foundry sand, perfectly. The resistance analysis produced good results and the process will generate molds with good visual aspect and adequate mechanical properties. Sawdust obtained in a eucalyptusprocessing sawmill was used in the confection of the briquettes. Tannin demonstrated great affinity to water in the composition of the standard mixture for briquetting. In natura sawdust, without any beneficiation, was used for briquetting. The results revealed that tannin is effective in the production of briquettes, where acted as an element of adhesion between the sawdust particles. |
publishDate |
2009 |
dc.date.issued.fl_str_mv |
2009-01-13 |
dc.date.available.fl_str_mv |
2010-09-23 |
dc.date.accessioned.fl_str_mv |
2016-04-28T14:56:19Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
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masterThesis |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
BARBOSA, Jo?o Carlos de Mello. Utiliza??o de tanino e derivados ligno-celul?sicos na prepara??o de areias de fundi??o e briquetes de res?duos vegetais. 2009. 70 f. Disserta??o (Mestrado em Ci?ncias Ambientais e Florestais) - Instituto de Florestas, Universidade Federal Rural do Rio de Janeiro, Serop?dica - RJ, 2009. |
dc.identifier.uri.fl_str_mv |
https://tede.ufrrj.br/jspui/handle/tede/482 |
identifier_str_mv |
BARBOSA, Jo?o Carlos de Mello. Utiliza??o de tanino e derivados ligno-celul?sicos na prepara??o de areias de fundi??o e briquetes de res?duos vegetais. 2009. 70 f. Disserta??o (Mestrado em Ci?ncias Ambientais e Florestais) - Instituto de Florestas, Universidade Federal Rural do Rio de Janeiro, Serop?dica - RJ, 2009. |
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https://tede.ufrrj.br/jspui/handle/tede/482 |
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por |
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Universidade Federal Rural do Rio de Janeiro |
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Programa de P?s-Gradua??o em Ci?ncias Ambientais e Florestais |
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UFRRJ |
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Brasil |
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Instituto de Florestas |
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Universidade Federal Rural do Rio de Janeiro |
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