Resumo

ROJAS-ARIAS, Nicolás; ALBERTO-SANDOVAL, Carlos  e  SANTAMARIA, Isaí. Optimization of Chalcopyrite Froth Flotation Process by Sludge Removal Step. Rev. ion [online]. 2018, vol.31, n.1, pp.89-96. ISSN 0120-100X.  https://doi.org/10.18273/revion.v31n1-2018014.

In this work, we study the froth flotation process of chalcopyrite, with emphasis on the influence of the presence of sludges and clays into the pulp during flotation. For this purpose, the chalcopyrite was mechanically prepared (crushing and grinding), the material was classified (between mesh 100 and 120 and the particle sizes were measured). In the process, a Jig type device for sludge removal and Denver flotation cells for the same purpose were applied. During the process, a reduction in the reagent consumption when handling the concentration step was considered. Is was observed a significant optimization in the concentration by froth flotation of the chalcopyrite by using Jig screen and the peptizes were removed during the flotation step. The hydraulic screen handling significantly improves the sludge removal, being more efficient than the use of the Denver Cell.

Palavras-chave : chalcopyrite; froth flotation; peptizes; jig screen; denver cell.

        · resumo em Português | Espanhol     · texto em Inglês     · Inglês ( pdf )