El estudio muestra la caracterización mineralógica y física de los productos obtenidos durante el proceso de Reducción Carbotérmica (RC) de la molibdenita (MoS2). Los resultados mineralógicos del concentrado de molibdenita indican también la presencia de bornita, calcopirita y calcosita. El grado de liberación de la molibdenita resulta ser tan solo de 87.3%, mientras que el restante (12.7%) se encuentra entrelazado. Se encontró que a 900ºC se produce mejor reacción con la relación molar MoS2: C: CaO formándose otras fases cristalinas como CaMoO4, CaSO4, Ca(CO)3 y CaO aparte de la fase CaS, que se esperaba. Además, se observó que el incremento de la temperatura y disminución del tamaño de la partícula mejoran la cinética de reducción carbotérmica de la molibdenita.

El estudio muestra la caracterización mineralógica y física de los productos obtenidos durante el proceso de Reducción Carbotérmica (RC) de la molibdenita (MoS2). Los resultados mineralógicos del concentrado de molibdenita indican también la presencia de bornita, calcopirita y calcosita. El grado de liberación de la molibdenita resulta ser tan solo de 87.3%, mientras que el restante (12.7%) se encuentra entrelazado. Se encontró que a 900ºC se produce mejor reacción con la relación molar MoS2: C: CaO formándose otras fases cristalinas como CaMoO4, CaSO4, Ca(CO)3 y CaO aparte de la fase CaS, que se esperaba. Además, se observó que el incremento de la temperatura y disminución del tamaño de la partícula mejoran la cinética de reducción carbotérmica de la molibdenita.

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.

El Perú mantiene un posicionamiento en la minería mundial, en la extracción y producción de minerales de Cobre, Zinc, Plata, Oro, entre otros. Las prospecciones geológicas efectuadas nos indican un futuro promisorio en cuanto a nuestros minerales mencionados pero van apareciendo leyes de Níquel (Millerita) interesantes en algunos yacimientos del Complejo Marañón, lo que nos permite realizar investigaciones para su procesamiento hidrometalúrgico y de ese modo podamos construir una tecnología metalúrgica adecuada a nuestros minerales sulfurados y que redunden en ingresos económicos significativos a la inversión efectuada y al Estado Peruano. Mostramos los resultados de pruebas efectuadas en la Escuela de Ingeniería Metalúrgica en la obtención de láminas de níquel metálico, así como también de subproductos en forma de cemento de níquel&nbs...

This article describes the cementation process of leached solutions from copper sulphide ores being and without being toasted. With favorable results in this study, we get the pattern for the feasibility of moving from the classical technology of concentration to the technology of cementation of copper sulfide minerals containing silver and gold. Simulation steps have been performed considering the different variables involved in the process such as time, agitation, solution concentration, pH and others. A kinetic model of copper cementation from PLS solutions purified by Solvent Extraction (SX) has been developed and it has the following form: C = 6.08 exp (- 0.03 t) Recoveries were obtained greater than 90% copper, which gives the possibility to improve the costs of national ores and con- centrates, as well as to open a favorable scenario for new national metallurgical projects.

This article describes the cementation process of leached solutions from copper sulphide ores being and without being toasted. With favorable results in this study, we get the pattern for the feasibility of moving from the classical technology of concentration to the technology of cementation of copper sulfide minerals containing silver and gold. Simulation steps have been performed considering the different variables involved in the process such as time, agitation, solution concentration, pH and others. A kinetic model of copper cementation from PLS solutions purified by Solvent Extraction (SX) has been developed and it has the following form: C = 6.08 exp (- 0.03 t) Recoveries were obtained greater than 90% copper, which gives the possibility to improve the costs of national ores and con- centrates, as well as to open a favorable scenario for new national metallurgical projects.