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. 07, 2022
Filed:
Oct. 12, 2018
Beijing Fullcan Biotechnology Co., Ltd., Beijing, CN;
Institute of Chemistry of Chinese Academy of Sciences, Beijing, CN;
Chunru Wang, Beijing, CN;
Jie Li, Beijing, CN;
BEIJING FULLCAN BIOTECHNOLOGY CO., LTD., Beijing, CN;
INSTITUTE OF CHEMISTRY OF CHINESE ACADEMY OF SCIENCES, Beijing, CN;
Abstract
A method for separating a metallofullerene M@C, comprises steps of: a) adding a Lewis acid to an extract containing the metallofullerene M@Cto react therewith, producing a complex precipitate; b) washing the precipitate, followed by dissolving and filtering to obtain a purified metallofullerene M@Cextract, wherein M is one or more selected from the group consisting of lanthanide metals Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb, and Lu; and the Lewis acid is one or more selected from the group consisting of zinc chloride, nickel chloride, copper chloride, zinc bromide, nickel bromide, and copper bromide.