Flotation Behavior and Interaction Mechanisms between Anglesite and Hydroxamates

Today chelating agents have received special attention, notably hydroxamic acids, which have shown superior performance without the health, safety and environmental concerns associated with xanthates. In this study, the chemical adsorption of two hydroxamates (BHA and OHA) on the surface of anglesit...

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Autores principales:	Elizondo-Álvarez, Martha Araceli, Uribe Salas, Alejandro, Bello Teodoro, Simon, Alonso González, Omero
פורמט:	Online
שפה:	spa
יצא לאור:	Universida de Sonora 2022
גישה מקוונת:	https://epistemus.unison.mx/index.php/epistemus/article/view/182
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spelling	oai:http:--epistemus.unison.mx:article-1822023-06-14T01:03:57Z Flotation Behavior and Interaction Mechanisms between Anglesite and Hydroxamates Comportamiento de flotación y mecanismos de interacción entre la Anglesita e hidroxamatos Elizondo-Álvarez, Martha Araceli Uribe Salas, Alejandro Bello Teodoro, Simon Alonso González, Omero hydroxamic acids interaction mechanisms anglesite flotation adsorption ácidos hidroxamicos mecanismos de interaccción anglesita flotación adsorción Today chelating agents have received special attention, notably hydroxamic acids, which have shown superior performance without the health, safety and environmental concerns associated with xanthates. In this study, the chemical adsorption of two hydroxamates (BHA and OHA) on the surface of anglesite was evaluated and compared by infrared spectroscopy and zeta potential measurements. Likewise, microflotation measurements were made to evaluate and compare their response to flotation. Finally, the mechanisms of interaction between anglesite with hydroxamate anions in aqueous solution were proposed, which present global reactions and help to understand the way in which both collectors react. In general, microflotation tests showed higher recoveries of anglesite using AOH. It is suggested that benzohydroxamate and octanohydroxamate anions are chemically adsorbed on anglesite under most of the conditions studied, except on anglesite conditioned to pH 5, where they are physysorbed. Entre los agentes quelantes destacan los ácidos hidroxámicos, los cuales han mostrado un rendimiento superior sin las preocupaciones de salud, seguridad y medio ambiente asociadas con los xantatos. En este estudio se evaluó y comparó mediante espectroscopia infrarroja y mediciones de potencial zeta, la adsorción química de dos hidroxamatos, sobre la superficie de la anglesita. Asimismo, se efectuaron mediciones de microflotación para evaluar y comparar su respuesta a la flotación. Finalmente, se propusieron los mecanismos de interacción entre la anglesita con los aniones hidroxamato en solución acuosa, los cuales presentan reacciones globales y ayudan a entender la manera en que reaccionan ambos colectores. En general, las pruebas de microflotación mostraron mayores recuperaciones de anglesita usando AOH. Se sugiere que los aniones benzohidroxamato y octanohidroxamato se adsorben químicamente sobre la anglesita en la mayoría de las condiciones estudiadas, excepto sobre la anglesita acondicionda a pH 5, en donde se encuentran fisisorbidos. Universida de Sonora 2022-04-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Research Investigación application/pdf application/pdf text/xml https://epistemus.unison.mx/index.php/epistemus/article/view/182 10.36790/epistemus.v15i31.182 EPISTEMUS; Vol. 15 No. 31 (2021): Issue 31; 22-30 EPISTEMUS; Vol. 15 Núm. 31 (2021): Revista No. 31; 22-30 2007-8196 2007-4530 spa https://epistemus.unison.mx/index.php/epistemus/article/view/182/272 https://epistemus.unison.mx/index.php/epistemus/article/view/182/217 https://epistemus.unison.mx/index.php/epistemus/article/view/182/343 Derechos de autor 2022 EPISTEMUS https://creativecommons.org/licenses/by-nc-nd/4.0
institution	Epistemus
collection	OJS
language	spa
format	Online
author	Elizondo-Álvarez, Martha Araceli Uribe Salas, Alejandro Bello Teodoro, Simon Alonso González, Omero
spellingShingle	Elizondo-Álvarez, Martha Araceli Uribe Salas, Alejandro Bello Teodoro, Simon Alonso González, Omero Flotation Behavior and Interaction Mechanisms between Anglesite and Hydroxamates
author_facet	Elizondo-Álvarez, Martha Araceli Uribe Salas, Alejandro Bello Teodoro, Simon Alonso González, Omero
author_sort	Elizondo-Álvarez, Martha Araceli
title	Flotation Behavior and Interaction Mechanisms between Anglesite and Hydroxamates
title_short	Flotation Behavior and Interaction Mechanisms between Anglesite and Hydroxamates
title_full	Flotation Behavior and Interaction Mechanisms between Anglesite and Hydroxamates
title_fullStr	Flotation Behavior and Interaction Mechanisms between Anglesite and Hydroxamates
title_full_unstemmed	Flotation Behavior and Interaction Mechanisms between Anglesite and Hydroxamates
title_sort	flotation behavior and interaction mechanisms between anglesite and hydroxamates
description	Today chelating agents have received special attention, notably hydroxamic acids, which have shown superior performance without the health, safety and environmental concerns associated with xanthates. In this study, the chemical adsorption of two hydroxamates (BHA and OHA) on the surface of anglesite was evaluated and compared by infrared spectroscopy and zeta potential measurements. Likewise, microflotation measurements were made to evaluate and compare their response to flotation. Finally, the mechanisms of interaction between anglesite with hydroxamate anions in aqueous solution were proposed, which present global reactions and help to understand the way in which both collectors react. In general, microflotation tests showed higher recoveries of anglesite using AOH. It is suggested that benzohydroxamate and octanohydroxamate anions are chemically adsorbed on anglesite under most of the conditions studied, except on anglesite conditioned to pH 5, where they are physysorbed.
publisher	Universida de Sonora
publishDate	2022
url	https://epistemus.unison.mx/index.php/epistemus/article/view/182
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Flotation Behavior and Interaction Mechanisms between Anglesite and Hydroxamates

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