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:
Mar. 12, 2024
Filed:
Mar. 04, 2021
Nanjing University, Nanjing, CN;
Nanjing Quankai Research Institute of Biomaterials Co., Ltd., Nanjing, CN;
Wei Jiang, Nanjing, CN;
Yunbiao Qi, Nanjing, CN;
Ping Sun, Nanjing, CN;
Wei Huang, Nanjing, CN;
Aimin Li, Nanjing, CN;
Quanxing Zhang, Nanjing, CN;
NANJING UNIVERSITY, Nanjing, CN;
NANJING QUANKAI RESEARCH INSTITUTE OF BIOMATERIALS CO., LTD., Nanjing, CN;
Abstract
The invention discloses a synthesis method and device for rapidly producing lactide at high yield. The method comprises: adding a single component of lactic acid or two components of lactic acid and catalyst, passing the mixture through a mixer to enter an oligomer preparation system, increasing a residence time through bottom circulation, synthesizing oligomeric lactic acid, and passing a gas-phase component through a rectification system. With the adoption of the device, the lactide is capable of being efficiently synthesized, crude lactide with a yield of 94% to 98% is capable of being obtained.