This research‘s main objective quantification of iron content in sphalerites; differentiation of three types of sphalerites is obtained according to the iron content, which will be useful for the proposed solutions in the metallurgical problems. In this study themineralogical characterization of samples from the Paragsha concentrator, the mining district of Cerro de Pasco and especiallysphalerites using the method of optical microscopy was performed for which it was necessary to use a polarizing microscopereflected light.Studies was performed as accurately as in the case of modal analysis where estimates of the degree of liberation and mineralgicalassociation are made, the samples come from the metallurgical testing laboratory. The specimen was taken from the concentratorplant Paragsha, then sifted for the preparation of polished sections that were used for the characterization of each...

La presente investigación tuvo como objetivo principal la cuantificación del contenido de hierro en las esfaleritas; se obtuvo la diferenciación de tres tipos de esfaleritas según el contenido de hierro, lo que será de utilidad para la propuesta de solucionesen los problemas metalúrgicos. En este estudio se realizó la caracterización mineralógica de las muestras provenientes dela concentradora Paragsha, del distrito minero de Cerro de Pasco y, especialmente, las esfaleritas utilizando el método demicroscopía óptica, para lo cual fue necesario el uso de un microscopio de polarización de luz reflejada.Se realizó estudios de mayor exactitud como es el caso de análisis modales en donde se hacen cálculos del grado de liberacióny asociación mineralógica, las muestras provienen de pruebas realizadas en el laboratorio metalúrgico. La muestra de análisisha sido tomada de la p...

Presently work is given to know the importance of the previous characterization of the diverse types of minerals of Fe. The importance of the metallurgical properties and its respective mineralogy characterization are important for the development of respective metallurgical processes appropriate. In this work, it is given to know mineralogy characterizations of diverse Minerals of Fe. These results can be useful, for example in the development of processes of direct reduction with Gas.

Presently work is given to know the importance of the previous characterization of the diverse types of minerals of Fe. The importance of the metallurgical properties and its respective mineralogy characterization are important for the development of respective metallurgical processes appropriate. In this work, it is given to know mineralogy characterizations of diverse Minerals of Fe. These results can be useful, for example in the development of processes of direct reduction with Gas.

In the processes of dissolution and adsorption of metals, the contribution of bacterial species previously adapted to specific environments, in order to achieve good results are required. In adapting Thiobacillus strains exist various mechanisms and reagents, as is the use of substances containing ideal nutrient media according to the effectiveness to achieve. For this reason we have modified the Middle 9k, with the aim of finding an appropriate means thereby increasing bacterial population isolated from strain Thiobacillus ferrooxidans Mining Salvage Unit, modifying the content of iron sulphate in the substrate and the strict control of pH . These values being 22.4 g / Lt iron sulfate and a pH of 1.8 A working conditions in the first 48 hours consumption of hydrogen protons is generated, which reduces acidity 2.3 - 2.4, with much less effect at low substrate concentrations. The producti...

Technologies are currently being developed for the treatment of acid mine drains (DAM), rock drainage (ARD) and other industrial effluents, which are causing water and soil contamination. Natural acid drainage is one of the foci of environmental contamination in national watersheds and for this reason it is necessary to search for the appropriate technologies to reduce it to suitable environmental conditions. Environmentally sound technologies protect the environment, are less polluting, use all resources more sustainably, recycle a larger portion of their waste and products, and treat waste more acceptably than the technologies they have come to replace. In the present work we show the experimental study of acid rock tests in percolation columns, in which we try to reproduce what happens in the Peruvian mines, this leads us to simulate the main variables that are involved: feed flows an...

Actualmente se están desarrollando tecnologías para el tratamiento de drenajes ácidos de mina (DAM), drenaje de rocas (ARD) y otros efluentes industriales, que están causando contaminación de aguas así como de suelos. El drenaje ácido natural es uno de los focos de contaminación ambiental de las cuencas nacionales y por ello es preciso buscar las tecnologías apropiadas para su abatimiento a las condiciones ambientales convenientes. Las tecnologías ecológicamente racionales protegen al medio ambiente, son menos contaminantes, utilizan todos los recursos en forma más sostenible, reciclan una mayor porción de sus desechos y productos y tratan los desechos residuales en forma más aceptable que las tecnologías que han venido a sustituir. En el presente trabajo mostramos el estudio experimental de pruebas de rocas ácidas en columnas de percolación, en el cual tratamos de repro...

En el presente trabajo mostramos las investigaciones pirometalúrgicas desarrolladas en la Escuela de Ingeniería Metalúrgica de la UNMSM, con la finalidad de encontrar reacciones de tostación sólido – sólido sin emisión de gases (TSEG), para adecuarnos a las normas ambientales prevalecientes en el país. El Ministerio del Ambiente está implementando la metodología (RETC) para estimar las emisiones en la industria no ferrosa, para lo cual la tostación sin emisión gaseosa sería una de las estrategias para abatir el SO2. En ese sentido se ha logrado el modelamiento de las condiciones de tostación (TSEG), en función de la temperatura, lo cual nos permitirá hacer distintas simulaciones para minimizar las emisiones fugitivas del SO2.

This research aims to explore possible solutions to the problems presented in auriferous sulfide minerals , which have cianicidas by metals ( Gold companions ) can not be cyanide by high reagent consumption , which makes the process uneconomical . Also be a problem hitting the small domestic mining sites that have these features that can not be traded concentrates by high penalties imposed on them , then creating a social problem that should be taken into account. At the experimental level by testing and subsequent acid leach cyanidation seek to find a process that allows for adequate separation of gold copper and other species also have high technical and economic efficiency. Exploratory tests shown indicate the feasibility of finding the right process for the investigated mineral content has Gold , chalcopyrite , malachite , magnetite , hematite , goethite , covellite , chalcocite , an...

This research aims to explore possible solutions to the problems presented in auriferous sulfide minerals , which have cianicidas by metals ( Gold companions ) can not be cyanide by high reagent consumption , which makes the process uneconomical . Also be a problem hitting the small domestic mining sites that have these features that can not be traded concentrates by high penalties imposed on them , then creating a social problem that should be taken into account. At the experimental level by testing and subsequent acid leach cyanidation seek to find a process that allows for adequate separation of gold copper and other species also have high technical and economic efficiency. Exploratory tests shown indicate the feasibility of finding the right process for the investigated mineral content has Gold , chalcopyrite , malachite , magnetite , hematite , goethite , covellite , chalcocite , an...

En el presente trabajo mostramos las investigaciones pirometalúrgicas desarrolladas en la Escuela de Ingeniería Metalúrgica de la UNMSM, con la finalidad de encontrar reacciones de tostación sólido – sólido sin emisión de gases (TSEG), para adecuarnos a las normas ambientales prevalecientes en el país. El Ministerio del Ambiente está implementando la metodología (RETC) para estimar las emisiones en la industria no ferrosa, para lo cual la tostación sin emisión gaseosa sería una de las estrategias para abatir el SO2. En ese sentido se ha logrado el modelamiento de las condiciones de tostación (TSEG), en función de la temperatura, lo cual nos permitirá hacer distintas simulaciones para minimizar las emisiones fugitivas del SO2.

Prospective studies developed in the zone of the Marañón basin show us a type of regional geology called the Marañón-Huánuco Region Complex, consisting of metallic minerals of Copper, Silver, Gold in schists and gneiss in contact with intrusives, as well as minerals of nickel, cobalt, titanium, platinum, among others. The characterization of the minerals in the area using instrumental techniques: minerographic microscope, Mössbauer spectroscopy analysis, multielemental chemical analysis, allow us to corroborate the presence of the metallic minerals of the Marañón Complex, as well as the presence of iron oxides, and to a degree of magnetization that are indicators of the metallic presence in the sampled areas. Metallurgical tests carried out indicate a good metallurgical recovery of the concentrates obtained for the chalcopyrite ore, which indicates a good economic possibility for...

Estudios prospectivos desarrollados en la zna de la cuenca del Marañón nos muestran un tipo de geología regional denominada Complejo del Marañón-Región Huánuco, consistente en minerales metálicos de Cobre, Plata, Oro en esquistos y gneis en contacto con intrusivos, así como también minerales de níquel, cobalto, titanio, platino, entre otros. La caracterización de los minerales de la zona mediante técnicas instrumentales: microscopio minerográfico, análisis por espectroscopia Mössbauer, análisis químico multielemental, nos permiten corroborar la presencia de los minerales metálicos del Complejo Marañón, así como la presencia de óxidos de hierro, y con un grado de magnetización que son indicadores de la presencia metálica en las zonas muestreadas. Pruebas metalúrgicas efectuadas nos indican una buena recuperación metalúrgica de los concentrados obtenidos para el...

Taking the Peru a leadership in the production of metals in the world, the world’s largest producer of silver, the second of copper and zinc, and the sixth in gold, it is necessary to develop intensive metallurgical research to give greater technological value to our concentrates. In the framework of clean technologies direct reduction of sulphides is of interest in metallurgical processes for obtaining base metal. In this investigation shows results of the kinetics of direct reduction of the chalcopyrite of complex marañón with coal in the presence of dolomite as an opportunity to produce copper from a sulphide avoiding air pollution. We studied the effect of the variables involved in the reduction carbotermica: Temperature, reasons molars of reactants, being kinetic model that we describe the phenomenology of reduction process of the chalcopyrite.

Taking the Peru a leadership in the production of metals in the world, the world’s largest producer of silver, the second of copper and zinc, and the sixth in gold, it is necessary to develop intensive metallurgical research to give greater technological value to our concentrates. In the framework of clean technologies direct reduction of sulphides is of interest in metallurgical processes for obtaining base metal. In this investigation shows results of the kinetics of direct reduction of the chalcopyrite of complex marañón with coal in the presence of dolomite as an opportunity to produce copper from a sulphide avoiding air pollution. We studied the effect of the variables involved in the reduction carbotermica: Temperature, reasons molars of reactants, being kinetic model that we describe the phenomenology of reduction process of the chalcopyrite.

Over the last years, using phenomena models in interpreting and designing of software in metallurgical processes has been increasing. In this present research, a series of experimental test with polymetallic minerals is shown, which have been submitted to Flotation, Filtration, Leaching and Sedimentation processes. Mathematic modelling of such processes is shown, as well as the processing and simulation of the experimental data through the respective models. It is intended to contrast them with data from metallurgical plants for their respective validations. All these results will be used for a better planning and control of industrial variables in a concentrating plant.

Over the last years, using phenomena models in interpreting and designing of software in metallurgical processes has been increasing. In this present research, a series of experimental test with polymetallic minerals is shown, which have been submitted to Flotation, Filtration, Leaching and Sedimentation processes. Mathematic modelling of such processes is shown, as well as the processing and simulation of the experimental data through the respective models. It is intended to contrast them with data from metallurgical plants for their respective validations. All these results will be used for a better planning and control of industrial variables in a concentrating plant.

Mining is a productive activity based on the rational utilization of non-renewable natural resources. Avizorándose that many mining countries may not base its development with the extraction of raw materials, which must design new strategies for development. Mining has always been regarded as a positive scenario for the market, the strong global demand for metals (copper, zinc, nickel, iron and others), mainly generated by the dynamics of Asian countries –led mainly by China– have allowed have high values of prices never seen in history. The current investigation shows evidence of leaching minerals saline sulfur quite successfully it allows us to infer that the halophilic bacteria play an important role in the dissolution of minerals and could also be taken to account as bio-indicators in the environmental remediation work.

Mining is a productive activity based on the rational utilization of non-renewable natural resources. Avizorándose that many mining countries may not base its development with the extraction of raw materials, which must design new strategies for development. Mining has always been regarded as a positive scenario for the market, the strong global demand for metals (copper, zinc, nickel, iron and others), mainly generated by the dynamics of Asian countries –led mainly by China– have allowed have high values of prices never seen in history. The current investigation shows evidence of leaching minerals saline sulfur quite successfully it allows us to infer that the halophilic bacteria play an important role in the dissolution of minerals and could also be taken to account as bio-indicators in the environmental remediation work.

Peru maintains a leading position in the world mining in connection to production and extraction of metals like copper, zinc, silver, gold among others. Geological exploration and prospecting already carried out, show us a promissory future for the above mentioned minerals and other interesting findings like nickel in millerite ore which was proved in some ore deposits of the Marañón geological complex. This occurrence allowed us to carry out metallurgical investigation, specifically hydrometallurgical processing for the Peruvian sulphide ore aimed to the development of profitable mining operations for both private sector and the Peruvian state. We showed the metallurgical test results carried out at the metallurgical engineering school related to obtaining metallic nickel plates and its by products like cement and sulphate crystals.