Inhibition mechanism of Ca²⁺, Mg²⁺ and Fe³⁺ in fine cassiterite flotation using octanohydroxamic acid.

ABSTRACT: The existence of metal ions should not be ignored in both hydrometallurgy and flotation. In this study, the effects of Ca²⁺, Mg²⁺ and Fe³⁺ on the flotation performance of cassiterite using octanohydroxamic acid (OHA) as the collector were investigated by micro-flotation tests, X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR) spectroscopy, contact angle, zeta (ζ) potential measurements and atomic force microscopy (AFM) imaging. The results of the flotation and contact angle experiments showed that the addition of Ca²⁺, Mg²⁺ and Fe³⁺ significantly decreased both the recovery and contact angle of cassiterite with pH ranged from 6.0 to 12.0 in the presence of OHA collector. ζ-Potential meas

SUBMITTER: Ren L 

PROVIDER: S-EPMC6124092 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature