Efecto de la granulometría de un concentrado de pirita aurífera y de la temperatura durante la biooxidación como pretratamiento para incrementar el grado de recuperación de oro por cianuración de un mineral refractario de la empresa minera Rio Chicama.

• Autores: López Sánchez, Jean Marco Javier, Martínez Román, Claudio César
• Formato: tesis de grado
• Fecha de Publicación: 2018
• Institución: Universidad Nacional de Trujillo
• Repositorio: UNITRU-Tesis
• Lenguaje: español
• OAI Identifier: oai:dspace.unitru.edu.pe:20.500.14414/11027
• Enlace del recurso: https://hdl.handle.net/20.500.14414/11027
• Nivel de acceso: acceso abierto
• Materia: un concentrado de pirita aurífera y de la temperatura

The influence of the granulometry of a gold pyrite concentrate and of the temperature during the biooxidation was studied as a pretreatment to increase the recovery percentage of gold by cyanidation of a refractory mineral from the mining company "Rio Chicama", which increased from 5.62% up to 28.33%. The sample consisted of 40.5 kg of gold pyrite concentrate, with the presence of arsenic called refractory mineral, from the Rio Chicama de Sayapullo mining company, which underwent 27 tests, which were screened at 80% through the sizes of 37; 53 and 74 μm ,, and subjected to three biooxidation temperatures 25; 45 and 65 ° C; making use of two replicas for each test, obtaining results that were used to make the metallurgical balance, and later the percentage of recovery of gold was calculated. The results show that, the maximum gold recoveries obtained are: 27.31% when the particle size is 80% mesh throughput of 37 μm, and 24.71% when the temperature is 25 ° C. It is concluded that, as the granulometry decreases and with an ambient temperature of 25 ° C, the percentage of gold recovery increases, reaching a gold recovery of 28.33%; however, according to the results of ANOVA, the temperature variable and the interaction of the temperature and granulometry variables have no significant influence on gold recovery