CHEMISTRY AS ENVIRONMENTAL ASSISTANCE OF ECOSYSTEMS AND POPULATIONS IN PERU
Informal gold mining nationally and internationally has an important annual production that often exceeds formal production, the gold recovery technology used is the classic Mercury Amalgamation: MAu + Hg → Au-Hg + M Au – Hg → Au + Hg ↑ Given the MINAMATA Convention that specifies the dangers of Mer...
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| Publicado en: | Revista de Investigación Ciencia, Tecnología y Desarrollo |
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| Autores principales: | , , , , , , , |
| Formato: | Artículo de revista |
| Lenguaje: | español |
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Universidad Peruana Unión
2019
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| _version_ | 1881503195226701824 |
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| author | DANIEL LOVERA LIA CONCEPCIÓN MIRIAM MEJIA NELLY AUCASSI VLADIMIR ARIAS EDWIN MANRIQUE ANSELMO SÁNCHEZ BLANCA PERALTA |
| author_browse | ANSELMO SÁNCHEZ BLANCA PERALTA DANIEL LOVERA EDWIN MANRIQUE LIA CONCEPCIÓN MIRIAM MEJIA NELLY AUCASSI VLADIMIR ARIAS |
| author_facet | DANIEL LOVERA LIA CONCEPCIÓN MIRIAM MEJIA NELLY AUCASSI VLADIMIR ARIAS EDWIN MANRIQUE ANSELMO SÁNCHEZ BLANCA PERALTA |
| author_sort | DANIEL LOVERA |
| collection | Revistas |
| container_title | Revista de Investigación Ciencia, Tecnología y Desarrollo |
| description | Informal gold mining nationally and internationally has an important annual production that often exceeds formal production, the gold recovery technology used is the classic Mercury Amalgamation:
MAu + Hg → Au-Hg + M
Au – Hg → Au + Hg ↑
Given the MINAMATA Convention that specifies the dangers of Mercury for ecosystems and the health of populations, it is good to opt for technologies other than conventional Amalgamation - Cyanuration widely used in informal and formal mining to process your minerals and tailings. Elsner in 1846 correctly identified the chemical reaction that forms the basis of all cyanide leaching processes in gold: 4 Au + 8 NaCN + O2 + 2 H2O → 4 Na [Au (CN) 2] + 4 NaOH. In the context of clean technologies, it is necessary to resort to alternative metallurgical processes for gold recovery such as gravimetric concentration and leaching by agitation using Tiourea, Sandioss and Goldmax among other reagents. We show the reactions of the Gold recovery process by Tiourea:
2 (CS (NH2)2)2+ ↔ NH2 (NH) CSSC (NH) NH2 + 2 H+ + 2 e-
2 Au+ + NH2 (NH) CSSC (NH) NH2 + 2 H+ + e- ↔ 2 Au (CS (NH2)2)2+
2 Au (CS (NH2)2)2+ + e- ↔ 2 Au0 + 2 (CS (NH2)2)2+
We show results of modeling and simulation of experimental data in obtaining Gold and Silver, considering the need to use processes that do not affect the environment and life, where to process minerals with high content of arsenic, antimony and copper that are cyanicides, as well as their subsequent remediation, they are uneconomic. Laboratory tests were performed to obtain working parameters in order to achieve optimal recovery percentages and moderate reagent consumption. The tests were performed by stirring using activated carbon, the results are shown in the graphs at the end of the work. |
| format | Online |
| id | oai:ojs.pkp.sfu.ca:article/1353 |
| institution | UPeU |
| issn | 2410-843x 2313-7991 |
| language | Spanish |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Universidad Peruana Unión |
| publisherStr | Universidad Peruana Unión |
| record_format | ojs |
| revista_str_mv | Revista de Investigación Ciencia, Tecnología y Desarrollo |
| spelling | oai:ojs.pkp.sfu.ca:article/13532020-10-05T16:06:22Z CHEMISTRY AS ENVIRONMENTAL ASSISTANCE OF ECOSYSTEMS AND POPULATIONS IN PERU La química como auxilio ambiental de los ecosistemas y de las poblaciones en el Perú DANIEL LOVERA LIA CONCEPCIÓN MIRIAM MEJIA NELLY AUCASSI VLADIMIR ARIAS EDWIN MANRIQUE ANSELMO SÁNCHEZ BLANCA PERALTA Química Ambiental, Amalgamación, Cianuración, Tiourea, Remediación Informal gold mining nationally and internationally has an important annual production that often exceeds formal production, the gold recovery technology used is the classic Mercury Amalgamation: MAu + Hg → Au-Hg + M Au – Hg → Au + Hg ↑ Given the MINAMATA Convention that specifies the dangers of Mercury for ecosystems and the health of populations, it is good to opt for technologies other than conventional Amalgamation - Cyanuration widely used in informal and formal mining to process your minerals and tailings. Elsner in 1846 correctly identified the chemical reaction that forms the basis of all cyanide leaching processes in gold: 4 Au + 8 NaCN + O2 + 2 H2O → 4 Na [Au (CN) 2] + 4 NaOH. In the context of clean technologies, it is necessary to resort to alternative metallurgical processes for gold recovery such as gravimetric concentration and leaching by agitation using Tiourea, Sandioss and Goldmax among other reagents. We show the reactions of the Gold recovery process by Tiourea: 2 (CS (NH2)2)2+ ↔ NH2 (NH) CSSC (NH) NH2 + 2 H+ + 2 e- 2 Au+ + NH2 (NH) CSSC (NH) NH2 + 2 H+ + e- ↔ 2 Au (CS (NH2)2)2+ 2 Au (CS (NH2)2)2+ + e- ↔ 2 Au0 + 2 (CS (NH2)2)2+ We show results of modeling and simulation of experimental data in obtaining Gold and Silver, considering the need to use processes that do not affect the environment and life, where to process minerals with high content of arsenic, antimony and copper that are cyanicides, as well as their subsequent remediation, they are uneconomic. Laboratory tests were performed to obtain working parameters in order to achieve optimal recovery percentages and moderate reagent consumption. The tests were performed by stirring using activated carbon, the results are shown in the graphs at the end of the work. La minería informal aurífera a nivel nacional e internacional tiene una producción anual importante que muchas veces supera la producción formal, la tecnología de recuperación del oro que utilizan es la clásica Amalgamación con Mercurio: MAu + Hg → Au-Hg + M Au – Hg → Au + Hg ↑ Dado la Convención de MINAMATA en el cual se precisa los peligros del Mercurio para los ecosistemas y la salud de las poblaciones, es bueno optar por otras tecnologías diferentes a la convencional de Amalgamación - Cianuración ampliamente usadas en la minería informal y formal para procesar sus minerales y relaves. Elsner en 1846 identificó correctamente la reacción química que forma la base de todos los procesos de lixiviación de cianuro en el oro: 4 Au + 8 NaCN + O2 + 2 H2O → 4 Na[Au(CN)2] + 4 NaOH. En el marco de las tecnologías limpias, es preciso recurrir a procesos metalúrgicos alternativos para la recuperación aurífera como la concentración gravimétrica y la lixiviación por agitación utilizando Tiourea, Sandioss y Goldmax entre otros reactivos. Mostramos las reacciones del proceso de recuperación de Oro por Tiourea: 2 (CS (NH2)2)2+ ↔ NH2 (NH) CSSC (NH) NH2 + 2 H+ + 2 e- 2 Au+ + NH2 (NH) CSSC (NH) NH2 + 2 H+ + e- ↔ 2 Au (CS (NH2)2)2+ 2 Au (CS (NH2)2)2+ + e- ↔ 2 Au0 + 2 (CS (NH2)2)2+ Mostramos resultados de modelamientos y simulaciones de datos experimentales en la obtención de Oro y Plata, considerando la necesidad de emplear procesos que no afecten el medio ambiente y la vida, donde procesar minerales con alto contenido de arsénico, antimonio y cobre que son cianicidas, así como su posterior remediación, resultan antieconómicos. Se realizaron pruebas a nivel laboratorio para obtener parámetros de trabajo con el objetivo de lograr porcentajes de recuperación óptima y el consumo moderado de reactivos. Las pruebas se realizaron por agitación usando carbón activado, los resultados se muestran en los gráficos al final del trabajo. Universidad Peruana Unión 2019-10-16 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares application/pdf https://revistas.upeu.edu.pe/ri_ctd/article/view/1353 10.17162/rictd.v5i1.1353 Revista de Investigación Ciencia, Tecnología y Desarrollo; Vol. 5 Núm. 1 (2019): Revista de Investigación: Ciencia, Tecnología y Desarrollo 2410-843x 2313-7991 10.17162/rictd.v5i1 spa https://revistas.upeu.edu.pe/ri_ctd/article/view/1353/1694 Derechos de autor 2019 Revista de Investigación Ciencia, Tecnología y Desarrollo |
| spellingShingle | Química Ambiental, Amalgamación, Cianuración, Tiourea, Remediación DANIEL LOVERA LIA CONCEPCIÓN MIRIAM MEJIA NELLY AUCASSI VLADIMIR ARIAS EDWIN MANRIQUE ANSELMO SÁNCHEZ BLANCA PERALTA CHEMISTRY AS ENVIRONMENTAL ASSISTANCE OF ECOSYSTEMS AND POPULATIONS IN PERU |
| title | CHEMISTRY AS ENVIRONMENTAL ASSISTANCE OF ECOSYSTEMS AND POPULATIONS IN PERU |
| title_alt | La química como auxilio ambiental de los ecosistemas y de las poblaciones en el Perú |
| title_full | CHEMISTRY AS ENVIRONMENTAL ASSISTANCE OF ECOSYSTEMS AND POPULATIONS IN PERU |
| title_fullStr | CHEMISTRY AS ENVIRONMENTAL ASSISTANCE OF ECOSYSTEMS AND POPULATIONS IN PERU |
| title_full_unstemmed | CHEMISTRY AS ENVIRONMENTAL ASSISTANCE OF ECOSYSTEMS AND POPULATIONS IN PERU |
| title_short | CHEMISTRY AS ENVIRONMENTAL ASSISTANCE OF ECOSYSTEMS AND POPULATIONS IN PERU |
| title_sort | chemistry as environmental assistance of ecosystems and populations in peru |
| topic | Química Ambiental, Amalgamación, Cianuración, Tiourea, Remediación |
| topic_facet | Química Ambiental, Amalgamación, Cianuración, Tiourea, Remediación |
| url | https://revistas.upeu.edu.pe/ri_ctd/article/view/1353 |
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