2011 Fiscal Year Final Research Report

Preparation of Extractant-Predoped Resin and Chromatographic Separation of Rare Earth Elements

Research Project

Project/Area Number	22810027
Research Category	Grant-in-Aid for Research Activity Start-up
Allocation Type	Single-year Grants
Research Field	Environmental technology/Environmental materials
Research Institution	National Institute of Advanced Industrial Science and Technology
Principal Investigator	TASAKI Yuiko 独立行政法人産業技術総合研究所, 環境管理技術研究部門, 研究員 (20586599)
Project Period (FY)	2010 – 2011
Keywords	希土類元素 / 分離 / リン酸系抽出剤
Research Abstract	Composite material of PMMA and coordination polymer of di-(2-ethylhexyl) phosphoric acid(D2EHPA), which is effective for the separation of rare earth elements, was successfully prepared by mixing two components in ethanol/water binary solution. It was revealed that the coordination-polymer composite adsorbs metal ion, and its selectivity of adsorption and desorption depends on pH.