公开(公告)号：US11834729B2

公开(公告)日：2023-12-05

申请号：US18060378

申请日：2022-11-30

Applicant: Guangzhou Institute of Geochemistry, Chinese Academy of Sciences

Inventor： Jianxi Zhu ,  Hongping He ,  Gaofeng Wang ,  Yuanyuan Wang ,  Mingqi Sun ,  Liuqing He ,  Xiaoliang Liang ,  Jingming Wei ,  Qingze Chen ,  Runliang Zhu

IPC: C22B59/00 ,  C22B3/06 ,  C22B3/10 ,  C22B3/14 ,  C22B3/24 ,  C22B3/46 ,  C22B3/26

CPC classification number: C22B59/00 ,  C22B3/065 ,  C22B3/10 ,  C22B3/14 ,  C22B3/24 ,  C22B3/41 ,  C22B3/46

Abstract: A method for extracting rare earth elements (REEs) from a REE hyperaccumulator, including: subjecting the REE hyperaccumulator to microwave-assisted digestion to obtain a REE extract; subjecting the REE extract to absorption with a chelating resin and elution to obtain a purified REE solution; and subjecting the purified REE solution to precipitation and calcination to obtain high-purity rare earth compound.