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.:
Date of Patent:
Jun. 24, 2025
Filed:
Apr. 28, 2022
Henan Changxing Industry Co, Ltd., Zhengzhou, CN;
Zhiang Sun, Zhengzhou, CN;
Feifei Liang, Zhengzhou, CN;
Xiaohui Jiang, Zhengzhou, CN;
Bo Dong, Zhengzhou, CN;
Qian Wang, Zhengzhou, CN;
Dongmei Zhang, Zhengzhou, CN;
Junjian Wang, Zhengzhou, CN;
Yanan Xue, Zhengzhou, CN;
Zhikai Xu, Zhengzhou, CN;
Fang Wang, Zhengzhou, CN;
Yanjun Yang, Zhengzhou, CN;
Mingjing Li, Zhengzhou, CN;
Meishan Shao, Zhengzhou, CN;
HENAN CHANGXING INDUSTRY CO, LTD., Zhengzhou, CN;
Abstract
The present disclosure discloses a process for producing microcrystalline alpha-alumina by microwave calcination, which relates to the production process of calcined alumina. The product of the present disclosure has stable quality. The yield of the process of the present disclosure is higher than that of the traditional kiln production method. The energy consumption during the preparation of alpha-alumina is greatly reduced, and the zero emission of harmful gases is realized.