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. 23, 2020
Filed:
Jul. 07, 2017
Jiangsu Yangnong Chemical Group Co., Ltd, Yangzhou, Jiangsu, CN;
Lin Xu, Jiangsu, CN;
Yiming Wang, Jiangsu, CN;
Bo Shao, Jiangsu, CN;
Kehong Ding, Jiangsu, CN;
Hui Yan, Jiangsu, CN;
Chenchao Bian, Jiangsu, CN;
Hui Zhao, Jiangsu, CN;
Yushuang Wang, Jiangsu, CN;
Jiangsu Yangnong Chemical Group Co., Ltd, Yangzhou, Jiangsu, CN;
Abstract
The disclosure provides a method for synthesizing paraphthaloyl chloride through terephthalic acid chlorination in a reaction mode of a microchannel continuous flow. Compared with an existing technology, this method has characteristics of accurate control of reaction conditions, high phosgene/triphosgene utilization ratio, low catalyst dosage, high TPA conversion ratio within few tens of seconds of reaction time, high TPC yield and the like.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile