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:
Jul. 01, 2025
Filed:
May. 28, 2020
Nanjing Yanchang Reaction Technology Research Institute Co., Ltd., Nanjing, CN;
Zhibing Zhang, Nanjing, CN;
Zheng Zhou, Nanjing, CN;
Feng Zhang, Nanjing, CN;
Lei Li, Nanjing, CN;
Weimin Meng, Nanjing, CN;
Baorong Wang, Nanjing, CN;
Gaodong Yang, Nanjing, CN;
Huaxun Luo, Nanjing, CN;
Guoqiang Yang, Nanjing, CN;
Hongzhou Tian, Nanjing, CN;
Yu Cao, Nanjing, CN;
Abstract
The invention provides a built-in micro-interface oxidation system for preparing terephthalic acid from p-xylene. The oxidation system includes a first reactor, a rectifying tower and a second reactor which are sequentially connected. A first outlet is disposed on a side wall of the first reactor; a first inlet is disposed on a side wall of the second reactor; a material inlet is disposed on a side wall of the rectifying tower; and a material outlet is disposed at a bottom of the rectifying tower. The first outlet is connected with the material inlet of the rectifying tower; the first inlet is connected with the material outlet of the rectifying tower. Micro-interface units are arranged in the first reactor and the second reactor for dispersing and crushing air into bubbles. Through disposing micro-interface units in reactors, problems of high energy consumption, high raw material consumption and low reaction efficiency are solved.