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.

Date of Patent:
Jul. 23, 2024

Filed:

Dec. 30, 2021
Applicants:

Guangdong Brunp Recycling Technology Co., Ltd., Guangdong, CN;

Hunan Brunp Recycling Technology Co., Ltd., Hunan, CN;

Hunan Brunp Vehicles Recycling Co., Ltd., Hunan, CN;

Inventors:

Jianfeng Xu, Guangdong, CN;

Changdong Li, Guangdong, CN;

Dingshan Ruan, Guangdong, CN;

Linlin Mao, Guangdong, CN;

Yulong Liao, Guangdong, CN;

Ding Yang, Guangdong, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C 38/00 (2006.01); C22B 1/02 (2006.01); C22C 22/00 (2006.01);
U.S. Cl.
CPC ...
C22C 38/005 (2013.01); C22B 1/02 (2013.01); C22C 2202/02 (2013.01);
Abstract

A method for safely oxidising roasting NdFeB powder material. The method may include: S: magnetizing and drying the NdFeB powder material; S: heating the magnetized and dried NdFeB powder material to spontaneous combustion, and then preparing the spontaneous combustion product into a powder; and S: magnetizing and then oxidising roasting the powder to obtain NdFeB oxide.


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