Efecto del grupo funcional en la adsorción de Ag(I) en soluciones sintéticas con materiales mesoroprosos de silica

Abstract

One of the main methodologies used in the industry for the recovery of gold and silver from cyanidation-rich solutions is the adsorption of activated carbon, a process that presents as the main disadvantage the formation of fines in the sorting screens that is where it is recovered, These fines represent a considerable loss of values in the process, which is why the search for alternatives that allow the recovery of gold and silver from the cyanidation rich solutions is of interest to hydrometallurgy, in this sense the magnetic preconcentration could be an alternative to this process; The present work shows the synthesis, characterization and study of the adsorption capacity of Ag (I) of mesoporous materials of silica modified with magnetite. These materials showed a good retention of magnetite in their structure based on the presence of amino groups in their structure, as well as silver adsorption capacities of 86.21-19.8 mgg-1.