In this work, the investigation of thermosensitive behvior of P(CPAAm6C) highlighted the formation of particle with a an averaged radius about 1940 nm in nitric acid. While hPCPAAm6C) does not exibit thermosensitive behavior, it was shown this polymer had floculation properties. The selective sorption properties of two valuable carbamoylmethylphosphonated-based polymers regarding to Th/U/Gd mixtures were studied. The influence of the total concentration of cations on the sorption of each cation was investigated. In the case of P(CPAAm6C), sorption experiments evidenced that the $Q_{\mathit{max}}(\mathit{Th})$ should be higher than 1.5 mmol$·$g^-1. Sorption results with hPCPAAm6C) evidenced that $Q_{\mathit{max}}(U)$ should be higher than 2.75 mmol$·$g^-1. Moreover, the results highlighted the different selectivities between the carbamoylmethylphosphonate and carbamoylmethylphosphonic diacid functions. The phase separation behavior and selectivity will be of great interest for the design of a future environmental-friendly process for hydrometallurgical treatments of rare earth ores.

在这项工作中，对P（CPAAm6C）的热敏性能的研究突出了在硝酸中平均半径约为1940 nm的颗粒的形成。尽管h PCPAAm6C）没有表现出热敏性能，但表明该聚合物具有絮凝性能。研究了两种有价值的氨基甲酰基甲基膦酸酯化聚合物对Th / U / Gd混合物的选择性吸附性能。研究了阳离子总浓度对每种阳离子吸附的影响。对于P（CPAAm6C），吸附实验表明${问}_{\mathit{最高}}（\mathit{钍}）$ 应该高于1.5 mmol$·$g ^-1。h PCPAAm6C的吸附结果证明${问}_{\mathit{最高}}（ü）$ 应该高于2.75 mmol$·$g ^-1。此外，结果突出了氨基甲酰基甲基膦酸酯和氨基甲酰基甲基膦酸二酸官能团之间的不同选择性。相分离行为和选择性对于未来稀土矿湿法冶金环保设计的设计将引起极大的兴趣。