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- W2009596592 abstract "This paper reports the results of industrial test work performed in flotation columns of seven concentrators of Peñoles Group (México) on the relationship between gas dispersion parameters, namely gas rate (Jg between 0·5 and 3·5 cm s−1), gas hold-up (ϵg between 3·3 and 19·4%), average bubble size (d32 between 1·30 and 2·9 mm) and bubble surface area flux (Sb between 14 and 85 s−1), and the metallurgical performance of the columns (e.g. grade and recovery). Fifteen columns performing in the cleaning stages of lead and zinc circuits were examined. The results obtained show that the behaviour of dispersion parameters is consistent and that both Sb and ϵg correlate well with recovery and enrichment ratio c/f.Cet article rapporte les résultats d’un travail (essai) industriel effectué dans des colonnes de flottation de sept concentrateurs du Groupe Peñoles (México). On discute de la relation entre les paramètres de dispersion du gaz, soit la vitesse du gaz (Jg entre 0·5 et 3·5 cm s−1), la rétention de gaz (ϵg entre 3·3 et 19·4%), la taille moyenne de bulle (d32 entre 1·30 et 2·9 mm), et le flux de l’aire spécifique de la bulle (Sb entre 14 et 85 s−1), et le rendement métallurgique des colonnes (par exemple, teneur et récupération). On a examiné quinze colonnes d’étapes de nettoyage des circuits de plomb et de zinc. Les résultats obtenus montrent que le comportement des paramètres de dispersion est consistant et qu’il existe une bonne corrélation de Sb et d’ϵg avec la récupération et le rapport d’enrichissement c/f." @default.
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- W2009596592 date "2012-04-01" @default.
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- W2009596592 title "Gas dispersion in column flotation and its effect on recovery and grade" @default.
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- W2009596592 doi "https://doi.org/10.1179/1879139511y.0000000033" @default.
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