Abstract Micaceous minerals are commonly found in phosphate ores, representing a challenge to selectively recover apatite. Aiming at identifying new flotation reagents for the separation of apatite from micaceous minerals, this study investigates the floatability of apatite, biotite and phlogopite in the presence of pataua oil-based collector. The chemical and mineralogical composition, electrokinetic properties and floatability of apatite, biotite and phlogopite in the presence of pataua fatty acid salts, as well as the reagent synthesis and adsorption mechanism were investigated in this work. The collector was successfully synthesized and showed a 90% selectivity gap between apatite and micaceous minerals in microflotation tests, at neutral and alkaline pH. The formation of calcium dicarboxylate was indicated to be the collector adsorption mechanism for apatite, whereas a less significant interaction with interlayer cations exposed during comminution was pointed as the adsorption mechanism for biotite and phlogopite.

中文翻译：

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使用 patauá 棕榈树油收集器从云母矿物中选择性浮选磷灰石

摘要 云母矿物普遍存在于磷矿中，这对选择性回收磷灰石提出了挑战。本研究旨在寻找用于从云母矿物中分离磷灰石的新型浮选试剂，研究了磷灰石、黑云母和金云母在油基捕收剂存在下的可浮性。本工作研究了磷灰石、黑云母和金云母在 pataua 脂肪酸盐存在下的化学和矿物组成、电动特性和可漂浮性，以及试剂合成和吸附机制。捕收剂合成成功，在微浮选试验中，在中性和碱性 pH 值下，磷灰石和云母矿物之间显示出 90% 的选择性差距。