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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11834729 B1

PDFFull Text
Date of Patent:
Dec. 05, 2023

Filed:

Nov. 30, 2022

Method for extracting rare earth elements from rare earth element hyperaccumulator

Applicant:

Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, CN;

Inventors:

Jianxi Zhu, Guangzhou, CN;

Hongping He, Guangzhou, CN;

Gaofeng Wang, Guangzhou, CN;

Yuanyuan Wang, Guangzhou, CN;

Mingqi Sun, Guangzhou, CN;

Liuqing He, Guangzhou, CN;

Xiaoliang Liang, Guangzhou, CN;

Jingming Wei, Guangzhou, CN;

Qingze Chen, Guangzhou, CN;

Runliang Zhu, Guangzhou, CN;

Assignee:

Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, CN;

Attorney:
Primary Examiner:

Vanessa T Luk

Assistant Examiner:

Nikolas Takuya Pullen

Int. Cl.
CPC ...
C22B 59/00 (2006.01); C22B 3/06 (2006.01); C22B 3/10 (2006.01); C22B 3/14 (2006.01); C22B 3/24 (2006.01); C22B 3/46 (2006.01); C22B 3/26 (2006.01);
U.S. Cl.
CPC ...
C22B 59/00 (2013.01); C22B 3/065 (2013.01); C22B 3/10 (2013.01); C22B 3/14 (2013.01); C22B 3/24 (2013.01); C22B 3/41 (2021.05); C22B 3/46 (2013.01);
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.

Find Patent Forward Citations

Zhu, Jianxi. (2023). Method for extracting rare earth elements from rare earth element hyperaccumulator (U.S. Patent No. 11834729). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11834729

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