Please use this identifier to cite or link to this item:
http://repositorio.ufla.br/jspui/handle/1/53310
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.creator | Pimentel, Juliana Gomes | - |
dc.creator | Gandolfi, Olga Reinert Ramos | - |
dc.creator | Sampaio, Vanessa Santos | - |
dc.creator | Veríssimo, Lizzy Ayra Alcântara | - |
dc.creator | Rodrigues, Luciano Brito | - |
dc.creator | Veloso, Cristiane Martins | - |
dc.creator | Fontan, Rafael da Costa Ilhéu | - |
dc.creator | Bonomo, Renata Cristina Ferreira | - |
dc.date.accessioned | 2022-08-18T16:53:12Z | - |
dc.date.available | 2022-08-18T16:53:12Z | - |
dc.date.issued | 2022 | - |
dc.identifier.citation | 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. | pt_BR |
dc.identifier.uri | http://repositorio.ufla.br/jspui/handle/1/53310 | - |
dc.description.abstract | 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. | pt_BR |
dc.language | pt_BR | pt_BR |
dc.publisher | Sociedade Brasileira de Química (SBQ) | pt_BR |
dc.rights | Attribution 4.0 International | * |
dc.rights | acesso aberto | pt_BR |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | * |
dc.source | Química Nova | pt_BR |
dc.subject | Aqueous two phase systems | pt_BR |
dc.subject | ATPS | pt_BR |
dc.subject | Dye extraction | pt_BR |
dc.title | Extração de corantes têxteis utilizando sistemas aquosos bifásicos compostos por 2-propanol e sais de sulfato | pt_BR |
dc.title.alternative | Extraction of textile dyes using two-phase aqueous systems composed of 2-propanol and sulfate salts | pt_BR |
dc.type | Artigo | pt_BR |
dc.description.resumo | Indisponível | pt_BR |
Appears in Collections: | DCA - Artigos publicados em periódicos |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
ARTIGO_Extração de corantes têxteis utilizando sistemas aquosos bifásicos compostos por 2-propanol e sais de sulfato.pdf | 564,22 kB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License