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首页> 外文会议>International Symposium on Process Mineralogy >Mineralogical studies in developing a novel approach for the extraction of rare earth elements from ferruginised rare earth element ores
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Mineralogical studies in developing a novel approach for the extraction of rare earth elements from ferruginised rare earth element ores

机译：矿物学研究开发一种新型方法，用于从冰因稀土元素中提取稀土元素的提取

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Processing and recovery of rare earth elements (REE) from various ores often includes physical separation and flotation, followed by hydrometallurgy for REE extraction. Ferruginised REE ores, however, do not generally respond well to physical separation methods owing to very fine intergrowths of REE-bearing minerals with Fe(Mn) oxides that make the milling and separation process inefficient and economically non-viable. Direct leaching of the REE minerals is also not viable, owing to the complex mineralogy and high reagent consumption involved. Mintek has developed a novel pyrometallurgical approach, PyEarth, to address these issues in unlocking the REE potential of ferruginised ores. Ore smelting produces a slag, containing the REE, and an alloy from the Fe(Mn) oxide reduction. Mineralogical investigations on the slag are integral to the approach, so as to realise an upgraded product suitable for hydrometallurgical extraction of the REE, whilst simultaneously producing a potentially saleable by-product (alloy).
机译：处理，并从各种矿石稀土元素（REE）的回收通常包括物理分离和浮选，接着湿法冶金为稀土元素萃取。 Ferruginised REE矿石，然而，一般不反应良好由于与使碾磨和分离过程效率低，在经济上无活力的Fe（Mn）的氧化物REE轴承矿物的非常细的共生体的物理分离方法。稀土元素的矿物直接浸出也是不可行的，由于复杂的矿物学和高试剂消耗有关。 MINTEK已经开发出一种新的火法冶金方法，PyEarth，在解锁ferruginised矿石的REE潜力来解决这些问题。矿冶炼产生的炉渣中，含有稀土元素，并从FE（Mn）的氧化物还原的合金。在炉渣矿物学调查是不可或缺的方法，从而实现适合于稀土元素的湿法冶金提取改质产品，而同时产生可销售的潜在的副产物（合金）。

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