Patent · US Active

Method for safely oxidizing and roasting neodymium-iron-boron powder and application thereof

US12043882B2 · kind B2 · utility

0Cited by

0References

5Claims

0Family size

Assignees

Inventors

Jianfeng Xu · Nanhu, CN
Changdong Li · 红钢城街道, CN
Dingshan Ruan · Longbeilingcun, CN
Linlin Mao · Foshan, CN
Yulong Liao · Longbeilingcun, CN
Ding Yang · Longbeilingcun, CN

Key dates

Filing date	Dec 30, 2021
Grant date	Jul 23, 2024
Priority date	—
Expiry date	Dec 30, 2041

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/20
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method for safely oxidising roasting NdFeB powder material. The method may include: S1: magnetizing and drying the NdFeB powder material; S2: heating the magnetized and dried NdFeB powder material to spontaneous combustion, and then preparing the spontaneous combustion product into a powder; and S3: magnetizing and then oxidising roasting the powder to obtain NdFeB oxide.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.