Lauryl phosphate adsorption in the flotation of Bastnaesite, (Ce,La)FCO3.

Author(s) Liu, W.; Wang, X.; Xu, H.; Miller, J.D.
Journal J Colloid Interface Sci
Date Published 2017 Mar 15

Wetting characteristics and micro-flotation responses of bastnaesite were examined as a function of pH and at different levels of lauryl phosphate adsorption. Theoretical computations for the bastnaesite-lauryl phosphate system were calculated using the universal force field (UFF) and semiempirical quantum chemical methods. The interaction energy and frontier orbital results correlate remarkably well with the experimental contact angle and micro-flotation test results. The wetting characteristics of bastnaesite with adsorbed collector were examined using both contact angle measurements and molecular dynamics simulations (MDS). The adsorption isotherm at low levels of lauryl phosphate adsorption was established. Finally, the relationship between hydrophobicity and adsorption density was examined by MDS, and compared to the results with octyl hydroxamate at low collector concentrations.

DOI 10.1016/j.jcis.2016.11.016
ISSN 1095-7103
Citation J Colloid Interface Sci. 2017;490:825833.

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