TY - JOUR 
A1 - Saldaña Pino, Manuel
AU - Toro Villarroel, Norman Rodrigo
AU - Castillo Segura, Jonathan Alejandro
AU - Hernández Avendaño, Pía Carolina Andrea
AU - Trigueros Tornero, Emilio
AU - Navarra Lafontaine, Alessandro
T1 - Development of an analytical model for the extraction of manganese from marine nodules
Y1 - 2019
SN - 2075-163X
UR - http://hdl.handle.net/10317/8511
AB - Multivariable analytical models provide a descriptive (albeit approximate) mathematical relationship between a set of independent variables and one or more dependent variables. The current work develops an analytical model that extends a design of experiments for the leaching of manganese from marine nodules, using sulfuric acid (H2SO4) in the presence of iron-containing tailings, which are both by-products of conventional copper extraction. The experiments are configured to address the effect of time, particle size, acid concentration, Fe2O3/MnO2 ratio, stirring speed and temperature, under typical industrial conditions. The recovery of manganese has been modeled using a first order differential equation that accurately fits experimental results, noting that Fe2O3/MnO2 and temperature are the most critical independent variables, while the particle size is the least influential (under typical conditions). This study obtains representative fitting parameters, that can be used to explore the incorporation of Mn recovery from marine nodules, as part of the extended value chain of copper sulfide processing.
KW - Explotación de Minas
KW - Manganese extraction
KW - Marine nodules
KW - Acid leaching
KW - Design of experiments
KW - Ordinary differential equations
KW - Mathematical modelling
KW - 5312.09 Minería
LA - eng
PB - MDPI AG
ER -