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Adsorption of N-Tallow 1,3-Propanediamine–Dioleate Collector on Albite and Quartz Minerals, and Selective Flotation of Albite from Greek Stefania Feldspar Ore by A. Vidyadhar; K.Hanumantha Rao; K.S.E. Forssberg is a Chemistry article available to read on EtoBox.

What is Adsorption of N-Tallow 1,3-Propanediamine–Dioleate Collector on Albite and Quartz Minerals, and Selective Flotation of Albite from Greek Stefania Feldspar Ore about?

The adsorption behavior of tallow 1,3-propanediamine-dioleate (Duomeen TDO) collector on albite and quartz minerals is assessed through Hallimond flotation, zeta potential, and diffuse reflectance FTIR investigations, together with the species distribution of the collector. The collector performance on albite separation from a natural feldspar material is evaluated in bench scale flotation tests. The Hallimond flotation responses of the minerals as a function of pH and collector concentration indicate that albite can be selectively floated from quartz at pH 2 where the doubly positively charged collector species adsorb on albite but not on quartz. However, the zeta potential and infrared spectra reveal that the adsorption behavior of the collector is similar on both minerals. The discrepancy in the flotation and adsorption results is attributed to the coarse and fine particle size fractions, and the shorter and longer equilibration periods employed in these studies respectively. The comparable adsorption on fine particles of albite and quartz at pH 2 is explained by the interaction of ammonium ions on silanol groups by hydrogen bonding as well as electrostatic interactions. The cha

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Author

A. Vidyadhar; K.Hanumantha Rao; K.S.E. Forssberg

Publisher

Elsevier Science; Elsevier ; Elsevier Inc.; Elsevier BV (ISSN 0021-9797)

Published

2002

Language

EN

Field

Chemistry (Physical Sciences)