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:
Apr. 18, 2023
Filed:
Nov. 18, 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
A built-in micro interfacial enhanced reaction system and process for PTA production with PX are provided. The system includes a reactor and a micro interfacial unit disposed inside reactor. The reactor includes a shell, an inner cylinder concentrically disposed inside shell, and a circulating heat exchange device partially disposed outside shell, inner cylinder having a bottom end connected to inner bottom surface of the shell in closed manner and an open top end, a region between shell and inner cylinder being first reaction zone, inner cylinder containing second reaction zone and third reaction zone from top to bottom, circulating heat exchange device being connected to inner cylinder and micro interfacial unit respectively. The invention can solve problems of large waste of reaction solvent acetic acid under high temperature and high pressure and being unable to take out the product TA in time during existing process of PTA production with PX.