Cyanide Consumption of a Gold-Bearing Pyrite Concentrate, using Ozone as a Pre-Treatment

Pyrite (FeS2), is the second most common host mineral for gold species. This association presents a great complexity, due to the gold can be finely disseminated or included at very fine size (0.1 to 1.0 µm), which requires extreme crushing conditions and strong oxidation in order to, liberate the go...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Rodriguez-Rodriguez, Carolina de Jesús, Salas-Puente, Gabriela, Baltazar-Vera, Juan Carlos, Valtierra-Olivares, Joel Everardo, Alonso-Gonzalez, Omero
Formato:	Online
Lenguaje:	spa
Publicado:	Universida de Sonora 2022
Acceso en línea:	https://epistemus.unison.mx/index.php/epistemus/article/view/194
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:http:--epistemus.unison.mx:article-194
record_format	ojs
spelling	oai:http:--epistemus.unison.mx:article-1942023-06-14T01:03:57Z Cyanide Consumption of a Gold-Bearing Pyrite Concentrate, using Ozone as a Pre-Treatment Consumo de cianuro de concentrado de pirita aurifera, empleando ozono como pretratamiento Rodriguez-Rodriguez, Carolina de Jesús Salas-Puente, Gabriela Baltazar-Vera, Juan Carlos Valtierra-Olivares, Joel Everardo Alonso-Gonzalez, Omero pirita aurifera minerales refractarios cianuración ozono Gold-bearing pyrite refractory ores cyanidation ozone Pyrite (FeS2), is the second most common host mineral for gold species. This association presents a great complexity, due to the gold can be finely disseminated or included at very fine size (0.1 to 1.0 µm), which requires extreme crushing conditions and strong oxidation in order to, liberate the gold, in a subsequent cyanidation step. In this work, cyanide consumption was evaluated, when a gold-bearing pyrite concentrate is submitted to a pretreatment with ozone prior to the conventional cyanidation.  Tests were carried out at two different cyanide concentrations (1000 and 3000 ppm of CN)-, for a gold pyrite concentrate (67.44% of FeS2), where a significant decrease in cyanide consumption of 54% and 69% was found, when the mineral is submitted to an ozone treatment before cyanidation. These findings suggest that the use of ozone increases silver recovery and generates significant environmental impact.   La pirita (FeS2) es el segundo mineral huésped más común de las especies de oro. Esta asociación presenta una complejidad diversa, ya que el oro puede encontrarse finamente diseminado ó incluido a tamaño muy fino (0.1 a 1.0 µm), por lo que requieren condiciones de trituración extremas y/u oxidación para liberar el oro. En este trabajo se evaluó el consumo de cianuro cuando un concentrado de pirita aurífero es sometido a un pretratamiento con ozono antes de la cianuración. Se realizaron pruebas de cianuración a  1000 y 3000 ppm de CN- para un concentrado de pirita con una ley de 67.44% de FeS2, observándose una reducción en el consumo de cianuro del 54% y 69% para dichas concentraciones de cianuro, cuando el mineral se somete a un pre-tratamiento con ozono. Estos resultados sugieren que el uso del ozono, además de incrementar la recuperación de plata, genera un impacto ambiental significativo.   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/194 10.36790/epistemus.v15i31.194 EPISTEMUS; Vol. 15 No. 31 (2021): Issue 31; 38-43 EPISTEMUS; Vol. 15 Núm. 31 (2021): Revista No. 31; 38-43 2007-8196 2007-4530 spa https://epistemus.unison.mx/index.php/epistemus/article/view/194/274 https://epistemus.unison.mx/index.php/epistemus/article/view/194/216 https://epistemus.unison.mx/index.php/epistemus/article/view/194/345 Derechos de autor 2022 EPISTEMUS https://creativecommons.org/licenses/by-nc-nd/4.0
institution	Epistemus
collection	OJS
language	spa
format	Online
author	Rodriguez-Rodriguez, Carolina de Jesús Salas-Puente, Gabriela Baltazar-Vera, Juan Carlos Valtierra-Olivares, Joel Everardo Alonso-Gonzalez, Omero
spellingShingle	Rodriguez-Rodriguez, Carolina de Jesús Salas-Puente, Gabriela Baltazar-Vera, Juan Carlos Valtierra-Olivares, Joel Everardo Alonso-Gonzalez, Omero Cyanide Consumption of a Gold-Bearing Pyrite Concentrate, using Ozone as a Pre-Treatment
author_facet	Rodriguez-Rodriguez, Carolina de Jesús Salas-Puente, Gabriela Baltazar-Vera, Juan Carlos Valtierra-Olivares, Joel Everardo Alonso-Gonzalez, Omero
author_sort	Rodriguez-Rodriguez, Carolina de Jesús
title	Cyanide Consumption of a Gold-Bearing Pyrite Concentrate, using Ozone as a Pre-Treatment
title_short	Cyanide Consumption of a Gold-Bearing Pyrite Concentrate, using Ozone as a Pre-Treatment
title_full	Cyanide Consumption of a Gold-Bearing Pyrite Concentrate, using Ozone as a Pre-Treatment
title_fullStr	Cyanide Consumption of a Gold-Bearing Pyrite Concentrate, using Ozone as a Pre-Treatment
title_full_unstemmed	Cyanide Consumption of a Gold-Bearing Pyrite Concentrate, using Ozone as a Pre-Treatment
title_sort	cyanide consumption of a gold-bearing pyrite concentrate, using ozone as a pre-treatment
description	Pyrite (FeS2), is the second most common host mineral for gold species. This association presents a great complexity, due to the gold can be finely disseminated or included at very fine size (0.1 to 1.0 µm), which requires extreme crushing conditions and strong oxidation in order to, liberate the gold, in a subsequent cyanidation step. In this work, cyanide consumption was evaluated, when a gold-bearing pyrite concentrate is submitted to a pretreatment with ozone prior to the conventional cyanidation.  Tests were carried out at two different cyanide concentrations (1000 and 3000 ppm of CN)-, for a gold pyrite concentrate (67.44% of FeS2), where a significant decrease in cyanide consumption of 54% and 69% was found, when the mineral is submitted to an ozone treatment before cyanidation. These findings suggest that the use of ozone increases silver recovery and generates significant environmental impact.
publisher	Universida de Sonora
publishDate	2022
url	https://epistemus.unison.mx/index.php/epistemus/article/view/194
work_keys_str_mv	AT rodriguezrodriguezcarolinadejesus cyanideconsumptionofagoldbearingpyriteconcentrateusingozoneasapretreatment AT salaspuentegabriela cyanideconsumptionofagoldbearingpyriteconcentrateusingozoneasapretreatment AT baltazarverajuancarlos cyanideconsumptionofagoldbearingpyriteconcentrateusingozoneasapretreatment AT valtierraolivaresjoeleverardo cyanideconsumptionofagoldbearingpyriteconcentrateusingozoneasapretreatment AT alonsogonzalezomero cyanideconsumptionofagoldbearingpyriteconcentrateusingozoneasapretreatment AT rodriguezrodriguezcarolinadejesus consumodecianurodeconcentradodepiritaauriferaempleandoozonocomopretratamiento AT salaspuentegabriela consumodecianurodeconcentradodepiritaauriferaempleandoozonocomopretratamiento AT baltazarverajuancarlos consumodecianurodeconcentradodepiritaauriferaempleandoozonocomopretratamiento AT valtierraolivaresjoeleverardo consumodecianurodeconcentradodepiritaauriferaempleandoozonocomopretratamiento AT alonsogonzalezomero consumodecianurodeconcentradodepiritaauriferaempleandoozonocomopretratamiento
_version_	1781317647745417216

Cyanide Consumption of a Gold-Bearing Pyrite Concentrate, using Ozone as a Pre-Treatment

Publicaciones similares