Superficial Speciation by FTIR Spectroscopy of Floated PbS (Galena) in the Presence of Copper Aqueous (+2)

Jimena Detzamin Ramírez Trejo, M. Reyes Pérez, Elia Palacios Beas, Iván A.Reyes Domínguez, Mizraim U.Flores Guerrero, Aislinn Michelle Teja Ruiz, Miguel Pérez Labra, Julio Cesar Juárez Tapia, Francisco Raúl Barrientos Hernández

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Resumen

The presence of copper aqueous (+2) in the pulps that feed the flotation circuits is due to the oxidation of the copper contained in sulfides (chalcopyrite) and in oxides (malachite) as a result of the galvanic reactions that occur during grinding copper aqueous (+2) can have a negative effect during the collectorless flotation of galena. In this investigation, the galena concentrated by collectorless flotation and in the presence of copper aqueous (+2) in alkaline media was superficially characterized by infrared spectroscopy. The results show the depression of galena with the increase of the dosage of copper aqueous (+2) in the pulp at pH 9.6 and Eh of +120 (mV). From the infrared characterization, it was found that the surface state of the galena when it undergoes depression, shows the absence of some of the absorption bands corresponding to the Pb-O and Pb-OH bonds of lead oxide and hydroxide detected when galena flotation reaches maximum recovery.

Idioma originalInglés
Título de la publicación alojadaMinerals, Metals and Materials Series
EditorialSpringer Science and Business Media Deutschland GmbH
Páginas551-559
Número de páginas9
DOI
EstadoPublicada - 2021

Serie de la publicación

NombreMinerals, Metals and Materials Series
ISSN (versión impresa)2367-1181
ISSN (versión digital)2367-1696

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