Carbonaceous Ore Characterization and the Identification of the Preg-Robbing Effect

The processing of refractory minerals by conventional methods results in poor gold recoveries, being a cause the preg-robbing effect when the adsorption of the complex Au(CN)2-  occurs on the surface of carbonaceous matter during leaching. It is then necessary to characterize mineralogicall...

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প্রধান লেখক:	Gómez Santiago, Marlen, Cholico-González, Diana, Ortiz Lara, Noemi, Escudero García, Ramiro
বিন্যাস:	Online
ভাষা:	spa eng
প্রকাশিত:	Universida de Sonora 2022
অনলাইন ব্যবহার করুন:	https://epistemus.unison.mx/index.php/epistemus/article/view/205
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spelling	oai:http:--epistemus.unison.mx:article-2052023-06-14T01:03:40Z Carbonaceous Ore Characterization and the Identification of the Preg-Robbing Effect Caracterización de un mineral carbonáceo e identificación del efecto Preg-Robbing Gómez Santiago, Marlen Cholico-González, Diana Ortiz Lara, Noemi Escudero García, Ramiro carbonaceous mineral preg-robbing effect Au(CN)2- adsoprtion mineral carbonaceo efecto preg-robbing Au(CN)2- adsorción The processing of refractory minerals by conventional methods results in poor gold recoveries, being a cause the preg-robbing effect when the adsorption of the complex Au(CN)2-  occurs on the surface of carbonaceous matter during leaching. It is then necessary to characterize mineralogically and identify the carbonaceous matter to establish the complexity of the mineral. Subsequently, the degree of preg-robbing must be evaluated to design the processing and recover the maximum of the trapped precious metal. Thus, a carbonaceous mineral was characterized by XRD and infrared spectroscopy, in addition to evaluating the mineral Au(CN)2- adsorption capacity. By XRD, calcite, and quartz species were identified; by infrared spectroscopy, the characteristic bands of Ca-O, C-O, Si-O and C=C associated with carbonaceous matter; from the adsorption capacity, a value q = 0.198 was determined mg Au(CN)2-/gmineral, which corresponds to 70% of Au(CN)2- adsorbed, in such a way that the mineral is classified as preg-robbing El procesamiento de minerales refractarios por métodos convencionales resulta en recuperaciones pobres de oro, siendo una causa el efecto preg-robbing al presentarse la adsorción del complejo Au(CN)2- en la superficie de materia carbonácea durante la lixiviación. Se hace necesario entonces caracterizar mineralógicamente e identificar la materia carbonácea para establecer la complejidad del mineral. Posteriormente se debe evaluar el grado del preg-robbing para diseñar el procesamiento y recuperar el máximo del metal precioso atrapado. Así, un mineral carbonáceo se caracterizó mediante DRX y por espectroscopía infrarroja, además de evaluar la capacidad de adsorción de Au(CN)2- del mineral. Por DRX, se identificaron las especies calcita y cuarzo; por espectroscopía infrarroja, las bandas características de Ca-O, C-O, Si-O y la C=C asociada a materia carbonácea; de la capacidad de adsorción se determinó un valor q=0.198 mg Au(CN)2-/gmineral, que corresponde al 70% de Au(CN)2- adsorbido, por lo que el mineral se clasifica como preg-robbing. Universida de Sonora 2022-04-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Research Investigación application/pdf application/pdf application/pdf text/xml https://epistemus.unison.mx/index.php/epistemus/article/view/205 10.36790/epistemus.v16i32.205 EPISTEMUS; Vol. 16 No. 32 (2022): Issue 32; 34-41 EPISTEMUS; Vol. 16 Núm. 32 (2022): Revista No. 32; 34-41 2007-8196 2007-4530 spa eng https://epistemus.unison.mx/index.php/epistemus/article/view/205/289 https://epistemus.unison.mx/index.php/epistemus/article/view/205/227 https://epistemus.unison.mx/index.php/epistemus/article/view/205/228 https://epistemus.unison.mx/index.php/epistemus/article/view/205/252 Derechos de autor 2022 EPISTEMUS https://creativecommons.org/licenses/by-nc-sa/4.0
institution	Epistemus
collection	OJS
language	spa eng
format	Online
author	Gómez Santiago, Marlen Cholico-González, Diana Ortiz Lara, Noemi Escudero García, Ramiro
spellingShingle	Gómez Santiago, Marlen Cholico-González, Diana Ortiz Lara, Noemi Escudero García, Ramiro Carbonaceous Ore Characterization and the Identification of the Preg-Robbing Effect
author_facet	Gómez Santiago, Marlen Cholico-González, Diana Ortiz Lara, Noemi Escudero García, Ramiro
author_sort	Gómez Santiago, Marlen
title	Carbonaceous Ore Characterization and the Identification of the Preg-Robbing Effect
title_short	Carbonaceous Ore Characterization and the Identification of the Preg-Robbing Effect
title_full	Carbonaceous Ore Characterization and the Identification of the Preg-Robbing Effect
title_fullStr	Carbonaceous Ore Characterization and the Identification of the Preg-Robbing Effect
title_full_unstemmed	Carbonaceous Ore Characterization and the Identification of the Preg-Robbing Effect
title_sort	carbonaceous ore characterization and the identification of the preg-robbing effect
description	The processing of refractory minerals by conventional methods results in poor gold recoveries, being a cause the preg-robbing effect when the adsorption of the complex Au(CN)2-  occurs on the surface of carbonaceous matter during leaching. It is then necessary to characterize mineralogically and identify the carbonaceous matter to establish the complexity of the mineral. Subsequently, the degree of preg-robbing must be evaluated to design the processing and recover the maximum of the trapped precious metal. Thus, a carbonaceous mineral was characterized by XRD and infrared spectroscopy, in addition to evaluating the mineral Au(CN)2- adsorption capacity. By XRD, calcite, and quartz species were identified; by infrared spectroscopy, the characteristic bands of Ca-O, C-O, Si-O and C=C associated with carbonaceous matter; from the adsorption capacity, a value q = 0.198 was determined mg Au(CN)2-/gmineral, which corresponds to 70% of Au(CN)2- adsorbed, in such a way that the mineral is classified as preg-robbing
publisher	Universida de Sonora
publishDate	2022
url	https://epistemus.unison.mx/index.php/epistemus/article/view/205
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Carbonaceous Ore Characterization and the Identification of the Preg-Robbing Effect

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