Alsabbagh Ahmad H, Mustafa Rawan M
Department of Nuclear Engineering, Jordan University of Science and Technology, Irbid 22110, Jordan.
Jordan Atomic Energy Commission, Amman 11934, Jordan.
Heliyon. 2023 Sep 1;9(9):e19597. doi: 10.1016/j.heliyon.2023.e19597. eCollection 2023 Sep.
The demand for extracting Rare Earth Elements (REEs) from their deposits is growing significantly around the world since they are essential in many mature and growing industries. This study investigated the elemental and mineralogical composition of a Bulk sample and its potential for rare earth elements (REEs) beneficiation through Wet Gravity Separation (WGS) and Froth Floatation (FF) processes. Results obtained from WDXRF analysis showed that Si, Hf, Ti, Fe and Zr were the major elements present in the Bulk sample, with SiO accounting for 64.79 wt%. The TREOs concentration was around 0.90 wt%, dominated by Ce, La, and Nd, with other REEs present in smaller concentrations. XRD analysis indicated that Quartz was the major mineral present in the Bulk sample. WGS and FF were then used to beneficiate the oxides CeO, LaO, NdO, PrO, YO, GdO, and SmO. Results showed significant concentration increases of these elements in the WGS concentrate, with high grade and good recoveries achieved for Ce, La, and Nd. Overall, the study provides insights into the potential of WGS and FF as a beneficiation technique for REEs in monazite ore.
由于稀土元素在许多成熟和新兴产业中都至关重要,全球范围内从矿床中提取稀土元素(REEs)的需求正在显著增长。本研究调查了一个大块样品的元素和矿物组成,以及通过重选(WGS)和泡沫浮选(FF)工艺对稀土元素(REEs)进行选矿的潜力。从WDXRF分析获得的结果表明,硅、铪、钛、铁和锆是大块样品中的主要元素,其中SiO占64.79 wt%。稀土氧化物总量(TREOs)浓度约为0.90 wt%,以铈、镧和钕为主,其他稀土元素浓度较低。XRD分析表明,石英是大块样品中的主要矿物。然后使用重选(WGS)和泡沫浮选(FF)对氧化铈、氧化镧、氧化钕、氧化镨、氧化钇、氧化钆和氧化钐进行选矿。结果表明,这些元素在重选精矿中的浓度显著增加,铈、镧和钕获得了高品位和良好的回收率。总体而言,该研究为了解重选(WGS)和泡沫浮选(FF)作为独居石矿中稀土元素选矿技术的潜力提供了见解。