Garnet in the flotation of fine-grained lepidolite: Strengthening role and action mechanism

IF 4.9 2区化学 Q2 CHEMISTRY, PHYSICAL

Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2025-03-25 DOI:10.1016/j.colsurfa.2025.136730

Zheyi Zhang , Chenyu Fan , Fen Jiao , Qian Wei

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引用次数: 0

Abstract

The flotation recovery of fine-grained lepidolite is crucial for the efficient utilization of lithium resources. This study investigated the strengthening effect of the hydrophilic mineral garnet on the flotation of fine-grained lepidolite and explored its mechanism from the perspectives of mineral dissolution and slurry rheology. The flotation results showed that garnet particles significantly enhanced the flotation recovery of fine-grained lepidolite, achieving a maximum recovery of 85.41 % under optimal conditions. The results of infrared spectroscopy and X-ray photoelectron spectroscopy (XPS) analyses confirmed the absence of collector adsorption on garnet surfaces, eliminating competitive consumption of Dodecylamine(DDA)/Sodium dodecyl sulfonate (NaOl) reagents. The results of Zeta potential tests revealed that the ion dissolution on the surface of garnet increased the surface potential of lepidolite. Besides, the Al ions dissolved from the surface of garnet might promote the flotation of lepidolite. The rheological tests of the slurry demonstrated that under the combined action of the collector and coarse-grained garnet, the flocculation of fine-grained lepidolite was promoted, thereby strengthening the flotation recovery of fine-grained lepidolite. The findings provide novel approach and offers insights for optimizing the flotation process of fine-grained lepidolite.

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来源期刊

Colloids and Surfaces A: Physicochemical and Engineering Aspects 化学-物理化学

CiteScore

8.70

自引率

9.60%

发文量

2421

审稿时长

56 days

期刊介绍： Colloids and Surfaces A: Physicochemical and Engineering Aspects is an international journal devoted to the science underlying applications of colloids and interfacial phenomena. The journal aims at publishing high quality research papers featuring new materials or new insights into the role of colloid and interface science in (for example) food, energy, minerals processing, pharmaceuticals or the environment.