In order to alleviate the pressure on the supply of lithium resources, this research proposes the use of binary/ternary collectors with high selectivity and collecting ability to enhance the flotation purification of low-grade zinnwaldite ore. The binary collector is a mixture of dodecylamine polyoxyethylene ether and DL-2-octanol. A binary collector is added first, followed by sodium oleate, known as a ternary collector. Under acidic conditions, the recovery of LiO in the concentrate was increased by 8.26% with the binary collector and 13.70% with the ternary collector, compared to the dodecylamine polyoxyethylene ether. The binary collector enhanced the dispersibility of the single collector, while co-adsorption strengthened the hydrophobic nature of the zinnwaldite surface. Consequently, zinnwaldite particles, after the application of binary collector, displayed inter-particle flocculation and attachment to bubbles within 60×10 m compared to other particles. Ternary collector exhibited the capacity to lower critical micelle concentration and surface tension, subsequently inducing a denser and thicker hydrophobic layer through electrostatic forces, hydrophobic interactions, and chemical reactions. The objective of this research is to facilitate the recovery of lithium resources from low-grade ores in order to meet the needs of sustainable development.

中文翻译：

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通过阳离子/DL-2-辛醇/阴离子试剂组合增强低品位红锌矿浮选的逐步方法：行为和机理分析


为了缓解锂资源供应压力，本研究提出采用具有高选择性和捕收能力的二元/三元捕收剂来加强低品位红华铅矿的浮选提纯。二元捕收剂是十二胺聚氧乙烯醚和DL-2-辛醇的混合物。首先添加二元捕收剂，然后添加油酸钠，称为三元捕收剂。在酸性条件下，与十二胺聚氧乙烯醚相比，二元捕收剂精矿中LiO的回收率提高了8.26%，三元捕收剂提高了13.70%。二元捕收剂增强了单一捕收剂的分散性，而共吸附则增强了红锌矿表面的疏水性。因此，与其他颗粒相比，在应用二元捕收剂后，红钨矿颗粒在 60×10 m 范围内表现出颗粒间絮凝和气泡附着。三元捕收剂表现出降低临界胶束浓度和表面张力的能力，随后通过静电力、疏水相互作用和化学反应诱导更致密和更厚的疏水层。本研究的目的是促进从低品位矿石中回收锂资源，以满足可持续发展的需求。