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Estudio de recuperabilidad y calidad de minerales de tierras raras como subproducto de la minería aluvial de oro
dc.rights.license | Atribución-NoComercial-SinDerivadas 4.0 Internacional |
dc.contributor.advisor | NEIRA ARENAS, GUSTAVO |
dc.contributor.author | Ochoa Correa, Lucía Inés |
dc.date.accessioned | 2022-08-16T16:10:14Z |
dc.date.available | 2022-08-16T16:10:14Z |
dc.date.issued | 2022-08-13 |
dc.identifier.uri | https://repositorio.unal.edu.co/handle/unal/81915 |
dc.description | ilustraciones, diagramas, mapas, tablas |
dc.description.abstract | Este trabajo presenta una posible ruta de beneficio para minerales de tierras raras (REE) y otros minerales como magnetita, ilmenita, rutilo y circones contenidos en las arenas negras de un proceso industrial de minería aluvial de oro. Esta ruta de beneficio comprende separaciones por tamaño, magnéticas, gravimétricas y electrostáticas de una corriente que hace parte de los relaves actuales de la explotación de un depósito de placer aluvial de oro ubicado en el Bajo Cauca Antioqueño (Colombia). Esta corriente presenta una concentración de minerales pesados superior al 50%, distribuidos en diferentes rangos de tamaño y asociaciones mineralógicas. Se encontró que la monacita, mineral de tierras raras de mayor interés, se encuentra concentrado en la fracción gruesa (+20 mallas, tamaño mayor a 0,85 milímetros), con un 1,4% de participación en esta fracción, esta fracción de gruesos a su vez equivale al 7% del total de la corriente sometida a estudio, y en la fracción fina (-70 mallas, tamaños menores a 0,212 milímetros), con un 0,23% de participación en esta fracción que a su vez equivale al 27% de la corriente de este estudio. Partiendo de un muestreo sistemático de la corriente de interés del proceso actual de beneficio aluvial, ensayos de separación y con ayuda del software LIMN®, se establecieron parámetros para la concentración de monacita y otros minerales de interés. La caracterización óptica, física, química y mineralógica de los concentrados obtenidos permitió inferir que, para lograr la recuperación de los minerales de tierras raras puede ser necesario un proceso de liberación mediante conminución, a fin de alcanzar los requerimientos de comercialización de concentrados, esto requiere un análisis técnico económico más profundo. El estudio de calidad realizado evidenció la potencialidad de aprovechamiento de minerales principales de hierro (como magnetita), titanio (ilmenita), monacita y circones, con variadas asociaciones mineralógicas. (Texto tomado de la fuente) |
dc.description.abstract | This paper presents a possible route to rare minerals benefit, and also other minerals such as magnetite, ilmenite, rutile, and circones, present in the black sands of an industrial aluvial gold mining company. This benefit route includes size, magnetic, gravimetric, and electrostatic separation of one of the currents that are part of the dredge tails in the mining process of an aluvial placer deposit located in El Bajo Cauca Antioqueño (Colombia). This current contains a heavy mineral concentration higher than 50%, distributed in different ranges of size and mineralogical associations. It was found that the monacite, the rare sands mineral of greater interest is concentrated in the gross section (+20 mesh, size bigger than 0.85 millimeters), with a 1,4% participation in this fraction, which represents the 7% of the total current under study, and in the fine fraction (-70 mesh, sizes under 0,212 millimeters), with a 0.23% of participation in this fraction, which also represents 27% of the current under study. Starting from systematic sampling of the currents of interest of the actual aluvial benefit process and with the support of the Software LIMN®, separation test and based of the, the parameters of concentration of the minerals of interest were stablished, for monacita. The optical, physical, chemical, and mineralogical characterization of the concentrates obtained, allowed to infer that the recovery of the minerals in the rare sands may require a comminution liberation process, with the purpose of achieving the requirements to commercialize the concentrates, which also requires a deeper technical and economic analysis. The quality study, showed the potential of the exploitation of the principal minerals of iron (such us magnetite), titanium (ilmenite), monacite and circones, with various mineralogical associations. |
dc.description.sponsorship | Mineros Aluvial SAS BIC |
dc.description.sponsorship | Universidad Nacional de Colombia |
dc.description.sponsorship | Leeds University |
dc.format.extent | xx, 128 páginas |
dc.format.mimetype | application/pdf |
dc.language.iso | spa |
dc.publisher | Universidad Nacional de Colombia |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
dc.subject.ddc | 620 - Ingeniería y operaciones afines::622 - Minería y operaciones relacionadas |
dc.subject.ddc | 660 - Ingeniería química::669 - Metalurgia |
dc.title | Estudio de recuperabilidad y calidad de minerales de tierras raras como subproducto de la minería aluvial de oro |
dc.type | Trabajo de grado - Maestría |
dc.type.driver | info:eu-repo/semantics/masterThesis |
dc.type.version | info:eu-repo/semantics/acceptedVersion |
dc.publisher.program | Medellín - Minas - Maestría en Ingeniería - Recursos Minerales |
dc.contributor.researchgroup | Grupo de Explotacion y Aprovechamiento Sostenible de Recursos Minerales - Geamin |
dc.description.degreelevel | Maestría |
dc.description.degreename | Magíster en Ingeniería - Recursos Minerales |
dc.description.researcharea | Beneficio de Minerales |
dc.identifier.instname | Universidad Nacional de Colombia |
dc.identifier.reponame | Repositorio Institucional Universidad Nacional de Colombia |
dc.identifier.repourl | https://repositorio.unal.edu.co/ |
dc.publisher.department | Departamento de Materiales y Minerales |
dc.publisher.faculty | Facultad de Minas |
dc.publisher.place | Medellín, Colombia |
dc.publisher.branch | Universidad Nacional de Colombia - Sede Medellín |
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dc.rights.accessrights | info:eu-repo/semantics/openAccess |
dc.subject.lemb | Metales de tierras raras |
dc.subject.lemb | Rare earth metals |
dc.subject.proposal | Arenas negras |
dc.subject.proposal | REE |
dc.subject.proposal | Minerales pesados |
dc.subject.proposal | Concentración |
dc.subject.proposal | Aluvial |
dc.subject.proposal | Black sands |
dc.subject.proposal | Concentration |
dc.subject.proposal | Alluvial |
dc.subject.proposal | Heavy minerals |
dc.title.translated | Study of recovery and quality of rare earth minerals as alluvial gold mining by product |
dc.type.coar | http://purl.org/coar/resource_type/c_bdcc |
dc.type.coarversion | http://purl.org/coar/version/c_ab4af688f83e57aa |
dc.type.content | Text |
dc.type.redcol | http://purl.org/redcol/resource_type/TM |
oaire.accessrights | http://purl.org/coar/access_right/c_abf2 |
oaire.awardtitle | BUILDING RESEARCH AND INNOVATION CAPABILITIES FOR THE SUSTAINABLE EXPLOITATION OF BLACK SANDS AS A SOURCE OF RARE EARTH ELEMENTS |
oaire.fundername | The Royal Academy of Engineering |
dcterms.audience.professionaldevelopment | Bibliotecarios |
dcterms.audience.professionaldevelopment | Estudiantes |
dcterms.audience.professionaldevelopment | Investigadores |
dcterms.audience.professionaldevelopment | Maestros |
dc.description.curriculararea | Área Curricular de Recursos Minerales |
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