Extração de corantes têxteis utilizando sistemas aquosos bifásicos compostos por 2-propanol e sais de sulfato
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/53310 |
Resumo: | Aqueous Two Phase Systems (ATPS) composed of 2-propanol + inorganic salt (Na2SO4/MgSO4) + water, at different temperatures T = (20, 30, 40 and 50) °C were applied in the partition studies of the textile dyes Yellow, Blue Royal and Red Dianix CC. The thermodynamic parameters of the free transfer energy (ΔGtr), enthalpy (ΔHtr) and entropy (ΔStr), respectively, were determined for dye partitioning, using the Van’t Hoff equation. The values of the partition coefficients of textile dyes Yellow, Royal Blue and Red Dianix CC, ranged from 14.21 to 1610.00, 15.15 to 994.00 and 17.32 to 311.75, respectively; and with dye extraction yields ranging from 93.17 to 99.93; 94.53 to 99.89 and 97.19 to 99.64, respectively. Based on the ΔGtr results, it was verified that the dyes partition process was thermodynamically spontaneous, in all evaluated systems. For the 2-propanol + sodium sulfate ATPS, there was a prevalence of the enthalpic contribution over the entropic contribution (ΔHtr > ΔStr), while for the 2-propanol + magnesium sulfate systems, a greater predominance of the entropic contribution was observed (ΔHtr < ΔStr). The recovery yields (Y) values obtained were above 90% for all systems. |
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Extração de corantes têxteis utilizando sistemas aquosos bifásicos compostos por 2-propanol e sais de sulfatoExtraction of textile dyes using two-phase aqueous systems composed of 2-propanol and sulfate saltsAqueous two phase systemsATPSDye extractionAqueous Two Phase Systems (ATPS) composed of 2-propanol + inorganic salt (Na2SO4/MgSO4) + water, at different temperatures T = (20, 30, 40 and 50) °C were applied in the partition studies of the textile dyes Yellow, Blue Royal and Red Dianix CC. The thermodynamic parameters of the free transfer energy (ΔGtr), enthalpy (ΔHtr) and entropy (ΔStr), respectively, were determined for dye partitioning, using the Van’t Hoff equation. The values of the partition coefficients of textile dyes Yellow, Royal Blue and Red Dianix CC, ranged from 14.21 to 1610.00, 15.15 to 994.00 and 17.32 to 311.75, respectively; and with dye extraction yields ranging from 93.17 to 99.93; 94.53 to 99.89 and 97.19 to 99.64, respectively. Based on the ΔGtr results, it was verified that the dyes partition process was thermodynamically spontaneous, in all evaluated systems. For the 2-propanol + sodium sulfate ATPS, there was a prevalence of the enthalpic contribution over the entropic contribution (ΔHtr > ΔStr), while for the 2-propanol + magnesium sulfate systems, a greater predominance of the entropic contribution was observed (ΔHtr < ΔStr). The recovery yields (Y) values obtained were above 90% for all systems.IndisponívelSociedade Brasileira de Química (SBQ)2022-08-18T16:53:12Z2022-08-18T16:53:12Z2022info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfPIMENTEL, J. G. et al. Extração de corantes têxteis utilizando sistemas aquosos bifásicos compostos por 2-propanol e sais de sulfato. Química Nova, São Paulo, p. 1-8, [2022]. DOI: 10.21577/0100-4042.20170911. No prelo.http://repositorio.ufla.br/jspui/handle/1/53310Química Novareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessPimentel, Juliana GomesGandolfi, Olga Reinert RamosSampaio, Vanessa SantosVeríssimo, Lizzy Ayra AlcântaraRodrigues, Luciano BritoVeloso, Cristiane MartinsFontan, Rafael da Costa IlhéuBonomo, Renata Cristina Ferreirapor2022-08-18T16:53:12Zoai:localhost:1/53310Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2022-08-18T16:53:12Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Extração de corantes têxteis utilizando sistemas aquosos bifásicos compostos por 2-propanol e sais de sulfato Extraction of textile dyes using two-phase aqueous systems composed of 2-propanol and sulfate salts |
title |
Extração de corantes têxteis utilizando sistemas aquosos bifásicos compostos por 2-propanol e sais de sulfato |
spellingShingle |
Extração de corantes têxteis utilizando sistemas aquosos bifásicos compostos por 2-propanol e sais de sulfato Pimentel, Juliana Gomes Aqueous two phase systems ATPS Dye extraction |
title_short |
Extração de corantes têxteis utilizando sistemas aquosos bifásicos compostos por 2-propanol e sais de sulfato |
title_full |
Extração de corantes têxteis utilizando sistemas aquosos bifásicos compostos por 2-propanol e sais de sulfato |
title_fullStr |
Extração de corantes têxteis utilizando sistemas aquosos bifásicos compostos por 2-propanol e sais de sulfato |
title_full_unstemmed |
Extração de corantes têxteis utilizando sistemas aquosos bifásicos compostos por 2-propanol e sais de sulfato |
title_sort |
Extração de corantes têxteis utilizando sistemas aquosos bifásicos compostos por 2-propanol e sais de sulfato |
author |
Pimentel, Juliana Gomes |
author_facet |
Pimentel, Juliana Gomes Gandolfi, Olga Reinert Ramos Sampaio, Vanessa Santos Veríssimo, Lizzy Ayra Alcântara Rodrigues, Luciano Brito Veloso, Cristiane Martins Fontan, Rafael da Costa Ilhéu Bonomo, Renata Cristina Ferreira |
author_role |
author |
author2 |
Gandolfi, Olga Reinert Ramos Sampaio, Vanessa Santos Veríssimo, Lizzy Ayra Alcântara Rodrigues, Luciano Brito Veloso, Cristiane Martins Fontan, Rafael da Costa Ilhéu Bonomo, Renata Cristina Ferreira |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Pimentel, Juliana Gomes Gandolfi, Olga Reinert Ramos Sampaio, Vanessa Santos Veríssimo, Lizzy Ayra Alcântara Rodrigues, Luciano Brito Veloso, Cristiane Martins Fontan, Rafael da Costa Ilhéu Bonomo, Renata Cristina Ferreira |
dc.subject.por.fl_str_mv |
Aqueous two phase systems ATPS Dye extraction |
topic |
Aqueous two phase systems ATPS Dye extraction |
description |
Aqueous Two Phase Systems (ATPS) composed of 2-propanol + inorganic salt (Na2SO4/MgSO4) + water, at different temperatures T = (20, 30, 40 and 50) °C were applied in the partition studies of the textile dyes Yellow, Blue Royal and Red Dianix CC. The thermodynamic parameters of the free transfer energy (ΔGtr), enthalpy (ΔHtr) and entropy (ΔStr), respectively, were determined for dye partitioning, using the Van’t Hoff equation. The values of the partition coefficients of textile dyes Yellow, Royal Blue and Red Dianix CC, ranged from 14.21 to 1610.00, 15.15 to 994.00 and 17.32 to 311.75, respectively; and with dye extraction yields ranging from 93.17 to 99.93; 94.53 to 99.89 and 97.19 to 99.64, respectively. Based on the ΔGtr results, it was verified that the dyes partition process was thermodynamically spontaneous, in all evaluated systems. For the 2-propanol + sodium sulfate ATPS, there was a prevalence of the enthalpic contribution over the entropic contribution (ΔHtr > ΔStr), while for the 2-propanol + magnesium sulfate systems, a greater predominance of the entropic contribution was observed (ΔHtr < ΔStr). The recovery yields (Y) values obtained were above 90% for all systems. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-08-18T16:53:12Z 2022-08-18T16:53:12Z 2022 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
PIMENTEL, J. G. et al. Extração de corantes têxteis utilizando sistemas aquosos bifásicos compostos por 2-propanol e sais de sulfato. Química Nova, São Paulo, p. 1-8, [2022]. DOI: 10.21577/0100-4042.20170911. No prelo. http://repositorio.ufla.br/jspui/handle/1/53310 |
identifier_str_mv |
PIMENTEL, J. G. et al. Extração de corantes têxteis utilizando sistemas aquosos bifásicos compostos por 2-propanol e sais de sulfato. Química Nova, São Paulo, p. 1-8, [2022]. DOI: 10.21577/0100-4042.20170911. No prelo. |
url |
http://repositorio.ufla.br/jspui/handle/1/53310 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution 4.0 International http://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 |
Sociedade Brasileira de Química (SBQ) |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química (SBQ) |
dc.source.none.fl_str_mv |
Química Nova reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
_version_ |
1784550139508031488 |