The geometallurgical model is the result of the integration of the disciplines of geology, mining and metallurgy in order to add value and reduce risk in a process such as the flotation efficiency of chalcopyrite. The objective of this study was to calibrate models to quantify the content of clays and gangas of a hydrothermal deposit of the porphyry copper-gold type by NIR spectroscopy. The selected methodology was to design a chemometric model based on 173 diamond drill composites to which X-ray diffraction tests and near infrared spectroscopy were performed, validating the results with a cross-validation through a machine learning methodology. The creation of the models was carried out by means of a regularized non-linear regression by the Ridge method. Low linearity models were obtained for calcite and plagioclase minerals, with R2 values (0.51 and 0.78, respectively). The regression ...

Geometallurgy is defined as the study of the genesis of minerals with respect to the performance of their metallurgical processing. The construction of geometallurgical models is of the utmost importance for the technical-economic evaluation of the deposit. The robustness of the model depends on the number of resources invested to generate potential information that will serve in decision making. The relevance of the geometallurgical model has a high value in mining management, which serves as an instrument for the planning, exploitation and design of metallurgical processes according to the type of deposit. Using the information to maximize economic performance in concentration processes has enormous potential and challenge for plant operators. This article will discuss the use of data analysis and its applications in several successful cases for porphyry-type deposits, taking...

The multidisciplinary geometallurgical modeling of the value chain is dependent on the areas of geology, mining and metallurgy, for this reason it is of the utmost importance in estimating the resources of the deposit. The objective of this study is to determine a methodology for modeling non-additive variables such as the work index. The methodology is based on the fact that there are geometallurgical variables whose average values do not correspond to the arithmetic mean of the domain, this is the case of metallurgical hardness variables. To achieve this objective, the database of a 100 linear km drilling campaign was used for the generation of comminution metallurgical composites, geochemical analysis and geological logging. The synthetic domain modeling was developed based on the redefinition of the alteration geochemical domains through the use of decision trees and the work index m...

Propone una nueva metodología de modelamiento geometalúrgico de tonelaje para la compresión de la variabilidad del depósito expresado en la mineralogía, resistencia de roca, alteración hidrotermal y pruebas de rendimiento en molienda, midiendo de esta manera su impacto en el tonelaje horario procesado para circuito de molienda. Este modelamiento geometalúrgico de tonelaje introduce parámetros intrínsecos de la génesis del yacimiento para el procesamiento de minerales basado en el rendimiento de molienda y el grado de alteración hidrotermal. Esto proporciona una relación de la génesis del pórfido con la resistencia de la roca y el comportamiento de rotura por impacto. Se utilizó el ensayo de carga puntual para medir la resistencia de la roca. La relación entre el consumo especifico de energía y las características geológicas de la roca encajante se estudia utilizando la...