Study on Removal Technique of Impurity Aluminum from High-concentration Pr-NdCl Feed Solution (Ⅰ) AITranslate
Abstract AITranslate
Taking Pr-NdCl3 feed solution prepared from mixed rare earth ore as the research object, the extraction of non-RE impurity of aluminum from high concentration Pr-NdCl3 feed solution was carried out with naphthenic acid-isooctanol-sulfonated kerosene as the extraction organic system.The effects of naphthenic acid concentration, organic saponification degree, phase ratio and extraction temperature on aluminum removal rate, rare earth loss rate and separation coefficient βAl/RE were investigated.The results show that when the concentration of naphthenic acid is 0.53 mol/L and the degree of organic saponification is 50%,more than 99% of Al in Pr-NdCl3 feed solution can be extracted and separated under the conditions of room temperature and 0.5∶1 phase ratio of organic phase and Pr-NdCl3 feed solution with Al content less than 0.35 g/L,and the rare earth loss rate is about 3%,which meets the requirement of Pr-NdCl3 feed solution for aluminum content.Under the optimum conditions, the extraction has fast phase disengagement, no third phase and no emulsification, which provides basic data for the production process of continuous extraction and separation of aluminum from Pr-NdCl3 feed solution.
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Basic Information:
DOI：
Chinese Library Classification Number:TF845[冶金工程—有色金属冶金]
Citation Information:
Taking Pr-NdCl3 feed solution prepared from mixed rare earth ore as the research object, the extraction of non-RE impurity of aluminum from high concentration Pr-NdCl3 feed solution was carried out with naphthenic acid-isooctanol-sulfonated kerosene as the extraction organic system.The effects of naphthenic acid concentration, organic saponification degree, phase ratio and extraction temperature on aluminum removal rate, rare earth loss rate and separation coefficient βAl/RE were investigated.The results show that when the concentration of naphthenic acid is 0.53 mol/L and the degree of organic saponification is 50%,more than 99% of Al in Pr-NdCl3 feed solution can be extracted and separated under the conditions of room temperature and 0.5∶1 phase ratio of organic phase and Pr-NdCl3 feed solution with Al content less than 0.35 g/L,and the rare earth loss rate is about 3%,which meets the requirement of Pr-NdCl3 feed solution for aluminum content.Under the optimum conditions, the extraction has fast phase disengagement, no third phase and no emulsification, which provides basic data for the production process of continuous extraction and separation of aluminum from Pr-NdCl3 feed solution.
quote
| GB/T 7714-2015 | [1] MA Sheng-feng, MENG Zhi-jun, LI Yu, et al. Study on Removal Technique of Impurity Aluminum from High-concentration Pr-NdCl Feed Solution (Ⅰ)[J]. Rare Metals and Cemented Carbides, 2021(2): 9-14. |
| MLA | [1] MA Sheng-feng, et al., "Study on Removal Technique of Impurity Aluminum from High-concentration Pr-NdCl Feed Solution (Ⅰ)." Rare Metals and Cemented Carbides, no. 2, 2021, pp. 9-14. |
| APA | [1] MA Sheng-feng, MENG Zhi-jun, LI Yu, XU Yan-hui, GAO Tian-zuo, GUAN Wei-hua, WANG Rong, & WANG Yong-li. (2021). Study on Removal Technique of Impurity Aluminum from High-concentration Pr-NdCl Feed Solution (Ⅰ). Rare Metals and Cemented Carbides(2), 9-14. |
| IEEE | [1] MA Sheng-feng, MENG Zhi-jun, LI Yu, XU Yan-hui, GAO Tian-zuo, GUAN Wei-hua, WANG Rong, and WANG Yong-li, "Study on Removal Technique of Impurity Aluminum from High-concentration Pr-NdCl Feed Solution (Ⅰ)," Rare Metals and Cemented Carbides, no. 2, pp. 9-14, 2021. keywords: {Pr-NdCl3 feed solution;naphthenic acid;aluminum extraction;separation coefficient;saponification;phase disengagement} |