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公开(公告)号：US12168833B1
公开(公告)日：2024-12-17
申请号：US18410527
申请日：2024-01-11
Inventor： Hongping He , Jianxi Zhu , Gaofeng Wang , Xiaoliang Liang , Wei Tan , Jie Xu , Jingming Wei , Shichang Kang , Yongqiang Yang , Yongjin Xu , Xiaoshan Zou
Abstract: Disclosed are a method for mining rare earth ore by electrification and a leaching agent for mining rare earth ore by electrification. The method includes: arranging liquid injection holes in a mining area, arranging electrically conductive liquid injection pipes in the liquid injection holes, and connecting N electrically conductive liquid injection pipes in a same row in parallel to an electrification control system; and adding a leaching agent into the liquid injection holes, and applying a direct current between electrodes by the electrification control system, the leaching agent including small molecular betaine. According to the present disclosure, the betaine can reduce the wetting resistance between solid and liquid phases, and promote the wetting and infiltration effects of a leaching agent solution on soil.
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公开(公告)号：US11834729B2
公开(公告)日：2023-12-05
申请号：US18060378
申请日：2022-11-30
Inventor： Jianxi Zhu , Hongping He , Gaofeng Wang , Yuanyuan Wang , Mingqi Sun , Liuqing He , Xiaoliang Liang , Jingming Wei , Qingze Chen , Runliang Zhu
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.
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