Investigation of the Flotation of an Ore Containing Bastnaesite and Monazite: Kinetic Study and Process Flowsheet Simulation

IF 2.2 4区地球科学 Q2 GEOCHEMISTRY & GEOPHYSICS

Minerals Pub Date : 2024-09-04 DOI:10.3390/min14090906

Claude Bazin, Jean-François Boulanger

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引用次数: 0

Abstract

Laboratory flotation tests carried out using an ore sample containing Rare Earth Elements (REEs) present as monazite and bastnaesite show that the flotation of monazite is slower and yielded lower recovery than that of bastnaesite. Results show that when studying the performances of a concentration process for an REE ore, it is essential to not look only at the behavior of the individual REEs but to convert elemental assays into mineral assays to obtain the mineral’s actual response to the concentration process. The results of the laboratory flotation tests are used to calibrate a flotation simulator applied to study different circuit configurations for the concentration of the REE minerals. Indeed, it is shown that for the studied ore, two cleaning stages of a rougher concentrate are sufficient to produce a concentrate with a Total Rare Earth Oxide (TREO) grade above 40%, which is acceptable for the subsequent hydrometallurgical process. The simulation also shows that it may be feasible, if required for the hydrometallurgy step, to separate bastnaesite and monazite by taking advantage of the different flotation kinetics of the two minerals.

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含巴氏铁矿和独居石矿石的浮选研究：动力学研究和工艺流程模拟

使用含有稀土元素（REEs）的矿石样本进行的实验室浮选测试表明，独居石的浮选速度比独居石慢，回收率也比独居石低。结果表明，在研究稀土元素矿石浓缩工艺的性能时，不能只看单个稀土元素的行为，还必须将元素测定值转换成矿物测定值，以获得矿物对浓缩工艺的实际反应。实验室浮选试验的结果用于校准浮选模拟器，该模拟器用于研究浓缩 REE 矿物的不同回路配置。结果表明，对于所研究的矿石，粗选精矿的两个净化阶段足以生产出总稀土氧化物（TREO）品位高于 40% 的精矿，这对于后续的湿法冶金工艺是可以接受的。模拟还表明，如果水冶步骤需要，利用韧皮石和独居石的不同浮选动力学，分离这两种矿物是可行的。

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来源期刊

Minerals MINERALOGY-MINING & MINERAL PROCESSING

CiteScore

4.10

自引率

20.00%

发文量

1351

审稿时长

19.04 days

期刊介绍： Minerals (ISSN 2075-163X) is an international open access journal that covers the broad field of mineralogy, economic mineral resources, mineral exploration, innovative mining techniques and advances in mineral processing. It publishes reviews, regular research papers and short notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.