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The preparation of a new magnetic ionic polymer extractant (P507 @ PVIM @ Fe3O4) by copolymerization method using l-vinylimidazole( VIM) and chloropropyl modified magnetic nanoparticles as raw materials, and using for extraction of La3+ from rare-earth fluids was studied. The effects of P507 doping amount (V(P507)/m (Fe3O4)), initial aqueous phase pH, extractant dosage, extraction time and temperature on the extraction rate of La3+ were investigated. The results show that under the optimal extraction conditions of P507 @ PV1M @ Fe3O4, addition dosage of 0.5 g, temperature of 25 °C, extraction time of 15 min, initial aqueous phase pH of 2.5, and VCP507)/m(Fe3O4) = 3.0 mL/1 g, the extraction rate of La3+ can reach 91.3%,and the extraction is excellent. [ABSTRACT FROM AUTHOR]

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Copyright of Journal of Harbin University of Science & Technology is the property of Journal of Harbin University of Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)