Removal of Ca2+ and Mg2+ Ions from Complex Sulfide Flotation Waters by Sodium Carbonate Additions

Ca2+ and Mg2+ ions are present in the water of the sulfide flotation process, negatively affecting its floatability and grade of the final concentrates obtained. It has recently been reported that its removal by adding sodium carbonate (Na2CO3) has a beneficial effect on flotation, although the reas...

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Autores principales:	Ojeda-Villegas, Sandra Daniela, Uribe-Salas, Alejandro
Formato:	Online
Lenguaje:	spa
Publicado:	Universida de Sonora 2023
Acceso en línea:	https://epistemus.unison.mx/index.php/epistemus/article/view/255
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spelling	oai:http:--epistemus.unison.mx:article-2552023-08-22T17:57:53Z Removal of Ca2+ and Mg2+ Ions from Complex Sulfide Flotation Waters by Sodium Carbonate Additions Remoción de los iones Ca2+ y Mg2+ de las aguas de flotación de sulfuros complejos mediante la adición de carbonato de sodio Ojeda-Villegas, Sandra Daniela Uribe-Salas, Alejandro Calcio Magnesio Flotación Calcium Magnesium Flotation Ca2+ and Mg2+ ions are present in the water of the sulfide flotation process, negatively affecting its floatability and grade of the final concentrates obtained. It has recently been reported that its removal by adding sodium carbonate (Na2CO3) has a beneficial effect on flotation, although the reasons for this behavior are not yet known in detail. This paper presents the results of a study designed to investigate the reaction mechanism between the metal-carbonate ions. The results show that the addition of Na2CO3 to a saturated gypsum solution (0.016 mol/L) containing 50 ppm Mg(II) promotes the precipitation of the Ca2+ ion, such as calcite and vaterite. The kinetic model proposed to describe the reaction’s kinetics suggests that it is about a second order kinetic. Los iones Ca2+ y Mg2+ se encuentran presentes en las aguas del proceso de flotación de sulfuros, lo que afecta negativamente su flotabilidad y el grado de los concentrados finales obtenidos. Recientemente se ha reportado que su remoción mediante la adición de carbonato de sodio (Na2CO3) tiene un efecto benéfico en la flotabilidad, aunque las razones de este comportamiento aún no se conocen con detalle. Este documento presenta los resultados de un estudio diseñado para investigar el mecanismo de reacción entre iones metal-carbonato. Los resultados demuestran que la adición de Na2CO3 a una solución saturada de yeso (0.016 mol/L) conteniendo 50 ppm de Mg(II), promueve la precipitación del ión Ca2+, como calcita y vaterita. El modelo cinético propuesto para describir la cinética de reacción sugiere que se trata de una cinética de segundo orden. Universida de Sonora 2023-03-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Research Investigación application/pdf https://epistemus.unison.mx/index.php/epistemus/article/view/255 10.36790/epistemus.v17i34.255 EPISTEMUS; Vol. 17 No. 34 (2023): Issue No. 34 EPISTEMUS; Vol. 17 Núm. 34 (2023): Revista No. 34 2007-8196 2007-4530 spa https://epistemus.unison.mx/index.php/epistemus/article/view/255/337 Derechos de autor 2023 EPISTEMUS https://creativecommons.org/licenses/by-nc-sa/4.0
institution	Epistemus
collection	OJS
language	spa
format	Online
author	Ojeda-Villegas, Sandra Daniela Uribe-Salas, Alejandro
spellingShingle	Ojeda-Villegas, Sandra Daniela Uribe-Salas, Alejandro Removal of Ca2+ and Mg2+ Ions from Complex Sulfide Flotation Waters by Sodium Carbonate Additions
author_facet	Ojeda-Villegas, Sandra Daniela Uribe-Salas, Alejandro
author_sort	Ojeda-Villegas, Sandra Daniela
title	Removal of Ca2+ and Mg2+ Ions from Complex Sulfide Flotation Waters by Sodium Carbonate Additions
title_short	Removal of Ca2+ and Mg2+ Ions from Complex Sulfide Flotation Waters by Sodium Carbonate Additions
title_full	Removal of Ca2+ and Mg2+ Ions from Complex Sulfide Flotation Waters by Sodium Carbonate Additions
title_fullStr	Removal of Ca2+ and Mg2+ Ions from Complex Sulfide Flotation Waters by Sodium Carbonate Additions
title_full_unstemmed	Removal of Ca2+ and Mg2+ Ions from Complex Sulfide Flotation Waters by Sodium Carbonate Additions
title_sort	removal of ca2+ and mg2+ ions from complex sulfide flotation waters by sodium carbonate additions
description	Ca2+ and Mg2+ ions are present in the water of the sulfide flotation process, negatively affecting its floatability and grade of the final concentrates obtained. It has recently been reported that its removal by adding sodium carbonate (Na2CO3) has a beneficial effect on flotation, although the reasons for this behavior are not yet known in detail. This paper presents the results of a study designed to investigate the reaction mechanism between the metal-carbonate ions. The results show that the addition of Na2CO3 to a saturated gypsum solution (0.016 mol/L) containing 50 ppm Mg(II) promotes the precipitation of the Ca2+ ion, such as calcite and vaterite. The kinetic model proposed to describe the reaction’s kinetics suggests that it is about a second order kinetic.
publisher	Universida de Sonora
publishDate	2023
url	https://epistemus.unison.mx/index.php/epistemus/article/view/255
work_keys_str_mv	AT ojedavillegassandradaniela removalofca2andmg2ionsfromcomplexsulfideflotationwatersbysodiumcarbonateadditions AT uribesalasalejandro removalofca2andmg2ionsfromcomplexsulfideflotationwatersbysodiumcarbonateadditions AT ojedavillegassandradaniela remociondelosionesca2ymg2delasaguasdeflotaciondesulfuroscomplejosmediantelaadiciondecarbonatodesodio AT uribesalasalejandro remociondelosionesca2ymg2delasaguasdeflotaciondesulfuroscomplejosmediantelaadiciondecarbonatodesodio
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Removal of Ca2+ and Mg2+ Ions from Complex Sulfide Flotation Waters by Sodium Carbonate Additions

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