The selective adsorption and flotation separation of spodumene from feldspar using a novel iron-group multiple ligand collector

Shi, Xinzhang; Xu, Longhua; Wang, Donghui; Ma, Zhimin; Xue, Kai; Meng, Jinping

doi:10.1016/j.colsurfa.2023.132363

Cited by 8 publications

(1 citation statement)

References 51 publications

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“…Thus, FTIR analysis revealed that β-CD weakly adsorbed onto the quartz and had little effect on the subsequent adsorption of SDS [59,60], whereas β-CD strongly adsorbed onto the barite surface and prevented further SDS adsorption on barite, which is consistent with the flotation results.…”

Section: Ftir Resultssupporting

confidence: 84%

Flotation recovery of barite from high-density waste drilling fluid using β-cyclodextrin as a novel depressant and its mechanism

Li,

Xie,

et al. 2024

PLoS ONE

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High-density waste drilling fluid contains an abundance of recyclable weighting reagents, direct disposal can pollute the environment. In this paper, the primary mineral composition of a high-density waste drilling fluid from a well in the southwest oil and gas field was analyzed. This paper proposes β-cyclodextrin (β-CD) as a depressant for the recovery of barite from waste drilling fluid. The recovery process was investigated through inverse flotation experiments, and the mechanism was analyzed using zeta potential, contact angle analysis, and FTIR. The flotation experiments showed that under the SDS flotation system, when the pH was 9.0 and the amount of depressant β-CD was 900 g/t, the barite recovery and density reached the highest values, which were 87.41% and 4.042 g/cm3, respectively. Zeta potential experiments, contact angle analysis, and FTIR analysis indicate that β-CD adsorbed onto barite through enhancing the hydrophilicity of barite, electrostatic force adsorption, and strong adsorption, which could not be displayed by SDS through competitive adsorption. Furthermore, β-CD exhibited a selective inhibitory effect on barite and enabled reverse flotation. The mechanism model of the flotation separation process was established.

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Section: Ftir Resultssupporting

confidence: 84%