The pre-concentrate of Au-Cu from a gravimetric concentrator FALCON was subjected to different treatment processes in order to separately extract the copper and then the gold, without having success; after some attempts, it was achieved to recover the gold from the correlation of the milling capability and cyanidation, recovering very encouraging tenors through the application of models of milling batch proposed by Magne, Austin and Concha, and for the cyanidation, it was applied the Kinetic Nucleus Recessive Model with the following offered configuration: 1 -2α/3 – (1-α)2/3= 3.30*10-10(0.015 + 0.0006TM) *(TM)5.5124*t The concentrate sample with around 10 Oz. of gold per ton and 2.50% of copper, tested in a milling to 96% - 200 nets and leached with 0.4% of cyanide for 70 hours obtained recoveries higher than 95%, with an average consumption of 46 Kg. of cyanide per ton of mineral.

The pre-concentrate of Au-Cu from a gravimetric concentrator FALCON was subjected to different treatment processes in order to separately extract the copper and then the gold, without having success; after some attempts, it was achieved to recover the gold from the correlation of the milling capability and cyanidation, recovering very encouraging tenors through the application of models of milling batch proposed by Magne, Austin and Concha, and for the cyanidation, it was applied the Kinetic Nucleus Recessive Model with the following offered configuration: 1 -2α/3 – (1-α)2/3= 3.30*10-10(0.015 + 0.0006TM) *(TM)5.5124*t The concentrate sample with around 10 Oz. of gold per ton and 2.50% of copper, tested in a milling to 96% - 200 nets and leached with 0.4% of cyanide for 70 hours obtained recoveries higher than 95%, with an average consumption of 46 Kg. of cyanide per ton of mineral.

Se presenta el trabajo de investigación que tiene como objetivo realizar un plan de mejora de procesos basado en el estudio de métodos de trabajo, para incrementar la productividad del área de producción de la empresa Maderera Fremar, Lima – 2020. Mediante la ayuda de la herramienta de diagnóstico se determinó como objetivo de estudio al personal y los procesos del área de producción de la empresa en estudio. Las técnicas para la recolección de información fueron, la entrevista al gerente de la empresa, la encuesta al personal del área de producción, la observación directa en la línea de producción y el análisis documental. En la evaluación realizada se identificaron problemas: falta de procedimientos de trabajo, falta de indicadores de tiempos de trabajo, pasadizos obstruidos por materiales, falta de limpieza en las máquinas de trabajo y falta de estandarización de...