Bentonite incorporated with granite tailings applied in iron ore pelletizing
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Research, Society and Development |
Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/27183 |
Resumo: | Numerous factors have contributed to the increase in waste production in large industries, among them steel and mining companies stand out due to their significant environmental impact, such as the pollution of terrestrial and aquatic environments, which has a direct influence on the reduction of the quality of life of local living beings. In this sense, this work investigated the feasibility of incorporating residues from the ornamental rock industry (known as abrasive sludge or RRO) in bentonite clay, aiming to achieve a viable technological route for use in the pelletizing of iron ore. The adopted methodology consisted of the chemical and physicochemical characterization of bentonite in its original state and the incorporation of ornamental rock tailings into bentonite by the following analyses: FRX, DRX, pH, moisture, apparent and absolute density. Subsequently, a statistical analysis of the ideal percentage of incorporation was carried out using the central composite rotational design method. The studied developments were evaluated based on the parameters adopted by Companhia Vale do Rio Doce (CVRD). From the FRX and XRD data, the samples were classified as silico-aluminous, adding more than 70% Si2O + Al2O3 and exhibiting a significant presence of quartz. The compositions that best met the value required by CVRD in relation to pH were four B20 samples, satisfying the basicity condition equal to at least 9.5. For bulk density, B30 presented 940.70 kg.m-3, a value close to the expected (961.20 kg.m-3), whereas for absolute density, two B20 samples showed better results: 2.55 and 2.58 for a benchmark of 2.4 to 2.5. |
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Bentonite incorporated with granite tailings applied in iron ore pelletizing Bentonita incorporada con relaves graníticos aplicada en peletización de mineral de hierro Bentonita incorporada com rejeito de granito aplicada na pelotização de minério de ferro BentonitaCaracterizaçãoLama abrasivaPelotização.BentoniteCharacterizationAbrasive sludgePelletizing.BentonitaCaracterización Lodo abrasivoPeletización.Numerous factors have contributed to the increase in waste production in large industries, among them steel and mining companies stand out due to their significant environmental impact, such as the pollution of terrestrial and aquatic environments, which has a direct influence on the reduction of the quality of life of local living beings. In this sense, this work investigated the feasibility of incorporating residues from the ornamental rock industry (known as abrasive sludge or RRO) in bentonite clay, aiming to achieve a viable technological route for use in the pelletizing of iron ore. The adopted methodology consisted of the chemical and physicochemical characterization of bentonite in its original state and the incorporation of ornamental rock tailings into bentonite by the following analyses: FRX, DRX, pH, moisture, apparent and absolute density. Subsequently, a statistical analysis of the ideal percentage of incorporation was carried out using the central composite rotational design method. The studied developments were evaluated based on the parameters adopted by Companhia Vale do Rio Doce (CVRD). From the FRX and XRD data, the samples were classified as silico-aluminous, adding more than 70% Si2O + Al2O3 and exhibiting a significant presence of quartz. The compositions that best met the value required by CVRD in relation to pH were four B20 samples, satisfying the basicity condition equal to at least 9.5. For bulk density, B30 presented 940.70 kg.m-3, a value close to the expected (961.20 kg.m-3), whereas for absolute density, two B20 samples showed better results: 2.55 and 2.58 for a benchmark of 2.4 to 2.5.Numerosos factores han contribuido al aumento de la producción de residuos en las grandes industrias, entre las que destacan las siderúrgicas y mineras por su importante impacto ambiental, como la contaminación de los medios terrestres y acuáticos que influye directamente en la reducción de la calidad de vida de los seres vivos locales. En este sentido, este trabajo investigó la factibilidad de incorporar residuos de la industria de rocas ornamentales (conocidos como lodos abrasivos o RRO) en arcillas bentoníticas, con el objetivo de alcanzar una ruta tecnológica viable para su uso en la peletización de minerales de hierro. La metodología adoptada consistió en la caracterización química y físico-química de la bentonita en su estado original y de la incorporación de relaves de rocas ornamentales a la bentonita mediante los siguientes análisis: FRX, DRX, pH, humedad, densidad aparente y absoluta. Posteriormente, se realizó un análisis estadístico del porcentaje ideal de incorporación mediante el método de diseño compuesto rotacional central. Las incorporaciones estudiadas fueron evaluadas con base en los parámetros adoptados por Companhia Vale do Rio Doce (CVRD). A partir de los datos de FRX y DRX, las muestras se clasificaron como silicoaluminosas, añadiendo más del 70% de Si2O + Al2O3 y exhibiendo una presencia significativa de cuarzo. Las composiciones que mejor cumplieron con el valor requerido por CVRD en relación al pH fueron cuatro muestras B20, satisfaciendo la condición de basicidad igual a por lo menos 9,5. Para la densidad aparente, el B30 mostró 940,70 kg.m-3, valor cercano al esperado (961,20 kg.m-3), en cuanto a la densidad absoluta, dos muestras B20 mostraron mejores resultados: 2,55 y 2,58 para una referencia de 2,4 a 2.5.Inúmeros fatores têm contribuído para o aumento da produção de resíduos nas grandes indústrias, dentre elas destacam-se as siderúrgicas e as mineradoras devido ao seu significativo impacto ambiental, tais como a poluição dos ambientes terrestres e aquáticos que tem influência direta na redução da qualidade de vida dos seres vivos locais. Nesse sentido, este trabalho investigou a viabilização da incorporação dos resíduos da indústria de rocha ornamental (conhecido como lama abrasiva ou RRO) em argila bentonita, visando alcançar uma rota tecnológica viável para utilização na pelotização de minérios de ferro. A metodologia adotada consistiu na caracterização química e físico-química da bentonita no estado original e das incorporações de rejeito de rocha ornamental em bentonita pelas seguintes análises: FRX, DRX, pH, umidade, densidade aparente e absoluta. Posteriormente, realizou-se uma análise estatística da porcentagem ideal de incorporação pelo método de delineamento composto central rotacional. As incorporações estudadas foram avaliadas com base nos parâmetros adotados pela Companhia Vale do Rio Doce (CVRD). A partir dos dados de FRX e DRX, as amostras foram classificadas como sílico-aluminosas somando mais de 70% de Si2O + Al2O3 e exibindo presença significativa de quartzo. As composições que melhor atenderam o valor exigido pela CVRD em relação ao pH foram quatro amostras B20, satisfazendo a condição de basicidade igual a 9,5 no mínimo. Para densidade aparente, a B30 apresentou 940,70 kg.m-3, valor próximo ao esperado (961,20 kg.m-3), já para a densidade absoluta, duas amostras B20 exibiram melhores resultados: 2,55 e 2,58 para um referencial de 2,4 a 2,5.Research, Society and Development2022-03-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/2718310.33448/rsd-v11i4.27183Research, Society and Development; Vol. 11 No. 4; e16211427183Research, Society and Development; Vol. 11 Núm. 4; e16211427183Research, Society and Development; v. 11 n. 4; e162114271832525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/27183/23783Copyright (c) 2022 Hilda Camila Nascimento Nogueira; Antônio Augusto Pereira de Sousa; Wlliam de Paiva; Geralda Gilvânia Cavalcante de Lima; Ana Renata Mendes de Lima; Felipe Augusto Sodré Ferreira de Sousahttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessNogueira, Hilda Camila NascimentoSousa, Antônio Augusto Pereira dePaiva, Wlliam de Lima, Geralda Gilvânia Cavalcante de Lima, Ana Renata Mendes de Sousa, Felipe Augusto Sodré Ferreira de2022-03-27T17:17:09Zoai:ojs.pkp.sfu.ca:article/27183Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:44:59.970058Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
dc.title.none.fl_str_mv |
Bentonite incorporated with granite tailings applied in iron ore pelletizing Bentonita incorporada con relaves graníticos aplicada en peletización de mineral de hierro Bentonita incorporada com rejeito de granito aplicada na pelotização de minério de ferro |
title |
Bentonite incorporated with granite tailings applied in iron ore pelletizing |
spellingShingle |
Bentonite incorporated with granite tailings applied in iron ore pelletizing Nogueira, Hilda Camila Nascimento Bentonita Caracterização Lama abrasiva Pelotização. Bentonite Characterization Abrasive sludge Pelletizing. Bentonita Caracterización Lodo abrasivo Peletización. |
title_short |
Bentonite incorporated with granite tailings applied in iron ore pelletizing |
title_full |
Bentonite incorporated with granite tailings applied in iron ore pelletizing |
title_fullStr |
Bentonite incorporated with granite tailings applied in iron ore pelletizing |
title_full_unstemmed |
Bentonite incorporated with granite tailings applied in iron ore pelletizing |
title_sort |
Bentonite incorporated with granite tailings applied in iron ore pelletizing |
author |
Nogueira, Hilda Camila Nascimento |
author_facet |
Nogueira, Hilda Camila Nascimento Sousa, Antônio Augusto Pereira de Paiva, Wlliam de Lima, Geralda Gilvânia Cavalcante de Lima, Ana Renata Mendes de Sousa, Felipe Augusto Sodré Ferreira de |
author_role |
author |
author2 |
Sousa, Antônio Augusto Pereira de Paiva, Wlliam de Lima, Geralda Gilvânia Cavalcante de Lima, Ana Renata Mendes de Sousa, Felipe Augusto Sodré Ferreira de |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Nogueira, Hilda Camila Nascimento Sousa, Antônio Augusto Pereira de Paiva, Wlliam de Lima, Geralda Gilvânia Cavalcante de Lima, Ana Renata Mendes de Sousa, Felipe Augusto Sodré Ferreira de |
dc.subject.por.fl_str_mv |
Bentonita Caracterização Lama abrasiva Pelotização. Bentonite Characterization Abrasive sludge Pelletizing. Bentonita Caracterización Lodo abrasivo Peletización. |
topic |
Bentonita Caracterização Lama abrasiva Pelotização. Bentonite Characterization Abrasive sludge Pelletizing. Bentonita Caracterización Lodo abrasivo Peletización. |
description |
Numerous factors have contributed to the increase in waste production in large industries, among them steel and mining companies stand out due to their significant environmental impact, such as the pollution of terrestrial and aquatic environments, which has a direct influence on the reduction of the quality of life of local living beings. In this sense, this work investigated the feasibility of incorporating residues from the ornamental rock industry (known as abrasive sludge or RRO) in bentonite clay, aiming to achieve a viable technological route for use in the pelletizing of iron ore. The adopted methodology consisted of the chemical and physicochemical characterization of bentonite in its original state and the incorporation of ornamental rock tailings into bentonite by the following analyses: FRX, DRX, pH, moisture, apparent and absolute density. Subsequently, a statistical analysis of the ideal percentage of incorporation was carried out using the central composite rotational design method. The studied developments were evaluated based on the parameters adopted by Companhia Vale do Rio Doce (CVRD). From the FRX and XRD data, the samples were classified as silico-aluminous, adding more than 70% Si2O + Al2O3 and exhibiting a significant presence of quartz. The compositions that best met the value required by CVRD in relation to pH were four B20 samples, satisfying the basicity condition equal to at least 9.5. For bulk density, B30 presented 940.70 kg.m-3, a value close to the expected (961.20 kg.m-3), whereas for absolute density, two B20 samples showed better results: 2.55 and 2.58 for a benchmark of 2.4 to 2.5. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-03-14 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/27183 10.33448/rsd-v11i4.27183 |
url |
https://rsdjournal.org/index.php/rsd/article/view/27183 |
identifier_str_mv |
10.33448/rsd-v11i4.27183 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/27183/23783 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Research, Society and Development |
publisher.none.fl_str_mv |
Research, Society and Development |
dc.source.none.fl_str_mv |
Research, Society and Development; Vol. 11 No. 4; e16211427183 Research, Society and Development; Vol. 11 Núm. 4; e16211427183 Research, Society and Development; v. 11 n. 4; e16211427183 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
instname_str |
Universidade Federal de Itajubá (UNIFEI) |
instacron_str |
UNIFEI |
institution |
UNIFEI |
reponame_str |
Research, Society and Development |
collection |
Research, Society and Development |
repository.name.fl_str_mv |
Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
repository.mail.fl_str_mv |
rsd.articles@gmail.com |
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1797052793780961280 |