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Azmal Zaid EH, Sin JC, Lam SM, Mohamed AR. Fabrication of La, Ce co-doped ZnO nanorods for improving photodegradation of methylene blue. J RARE EARTH 2023. [DOI: 10.1016/j.jre.2023.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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Zheng Q, Hu T, Le Roux S, Li M, Chen C, Yu J, Wang J, Ren W, Ren Z. Local atomic structure evolution of liquid gadolinium and yttrium during solidification: An ab initio study. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Chen D, Yu C, Wang Z, Zhang X, Lu W, Zhang D. Simulation of Lanthanum Purification Using a Finite Element Method. MATERIALS 2022; 15:ma15093183. [PMID: 35591517 PMCID: PMC9102525 DOI: 10.3390/ma15093183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/21/2022] [Accepted: 03/23/2022] [Indexed: 12/10/2022]
Abstract
The zone refining technology is considered to be one of the most effective means of purifying lanthanum. However, it is tough to obtain the temperature distribution of the molten region through experimental methods. In this study, finite element analysis was used to establish the zone refining simulation model, and the impurity distribution of lanthanum after purification was investigated experimentally. Good agreement between the simulated and experimental results was obtained. The effects of the current and the frequency on the temperature distribution and the width of the region were studied using the simulation model. Through the zone refining experiment, the impurity distributions under different widths of molten region were revealed. Finally, the influence of molten region width on the limiting distribution was calculated by solving the limiting distribution equation.
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Affiliation(s)
- Dehong Chen
- National Engineering Research Center for Rare Earth Materials, GRINM Group Co., Ltd., Beijing 100088, China; (D.C.); (Z.W.); (X.Z.); (W.L.); (D.Z.)
- GRIREM Advanced Materials Co., Ltd., Beijing 100088, China
| | - Chuang Yu
- National Engineering Research Center for Rare Earth Materials, GRINM Group Co., Ltd., Beijing 100088, China; (D.C.); (Z.W.); (X.Z.); (W.L.); (D.Z.)
- GRIREM Advanced Materials Co., Ltd., Beijing 100088, China
- Correspondence: ; Tel.: +86-18911705374
| | - Zhiqiang Wang
- National Engineering Research Center for Rare Earth Materials, GRINM Group Co., Ltd., Beijing 100088, China; (D.C.); (Z.W.); (X.Z.); (W.L.); (D.Z.)
- GRIREM Advanced Materials Co., Ltd., Beijing 100088, China
| | - Xiaowei Zhang
- National Engineering Research Center for Rare Earth Materials, GRINM Group Co., Ltd., Beijing 100088, China; (D.C.); (Z.W.); (X.Z.); (W.L.); (D.Z.)
- GRIREM Advanced Materials Co., Ltd., Beijing 100088, China
| | - Wenli Lu
- National Engineering Research Center for Rare Earth Materials, GRINM Group Co., Ltd., Beijing 100088, China; (D.C.); (Z.W.); (X.Z.); (W.L.); (D.Z.)
- GRIREM Advanced Materials Co., Ltd., Beijing 100088, China
| | - Dongwei Zhang
- National Engineering Research Center for Rare Earth Materials, GRINM Group Co., Ltd., Beijing 100088, China; (D.C.); (Z.W.); (X.Z.); (W.L.); (D.Z.)
- GRIREM Advanced Materials Co., Ltd., Beijing 100088, China
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