ABSTRACT

The classical use of an anionic collector does not lead to a satisfactory flotation response for feldspars with high content of mica, iron, and titanium oxides. Therefore, amine-type cationic reagents are preferred together with an anionic reagent to remove especially problematic mica minerals. In this study, main colored impurities in the albite ore were efficiently removed by single-stage flotation using newly developed anionic-cationic mixed reagents. 2408 collector alone achieved much greater results at 1000 g/t dosage and a salable feldspar concentrate assaying 0.03% Fe₂O₃ and 0.07% TiO₂ was successfully produced with 93% Na₂O recovery at natural pH. The synergistic effects of 2404 and 2408 collectors, which were successful in removing iron and titanium oxides, were investigated and a feldspar concentrate with 0.04% Fe₂O₃ and 0.03% TiO₂ was obtained at a slightly basic pH medium. With this novel and innovative approach, the increased capacity, easier control, less unit cost, and low collector dosage can be easily achieved using a single collector without the need for any frother or pH adjusting agents.

摘要

对于云母、铁和钛氧化物含量高的长石，传统使用阴离子捕收剂并不能产生令人满意的浮选反应。因此，优选胺类阳离子试剂与阴离子试剂一起去除特别有问题的云母矿物。在这项研究中，使用新开发的阴离子-阳离子混合试剂通过单级浮选有效去除钠长石矿石中的主要有色杂质。单独使用 2408 捕收剂在 1000 g/t 的用量下取得了更大的效果，并且成功生产了可销售的长石精矿，含量为 0.03% Fe ₂ O ₃和 0.07% TiO ₂，​​Na _{2含量为 93%}在自然 pH 下恢复 O。研究了 2404 和 2408 捕收剂的协同效应，它们成功地去除了铁和钛的氧化物，并在微碱性 pH 介质下获得了含有 0.04% Fe ₂ O ₃和 0.03% TiO _{2的长石精矿。}通过这种新颖的创新方法，无需任何起泡剂或 pH 调节剂，即可使用单个捕收剂轻松实现更高的容量、更易于控制、更低的单位成本和低捕收剂用量。