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. 26, 2016
Filed:
Nov. 15, 2011
Huanxin Gao, Shanghai, CN;
Bin Zhou, Shanghai, CN;
Yilun Wei, Shanghai, CN;
Ruifang Gu, Shanghai, CN;
Hua Fang, Shanghai, CN;
Shufang Ji, Shanghai, CN;
Hui Yao, Shanghai, CN;
Huanxin Gao, Shanghai, CN;
Bin Zhou, Shanghai, CN;
Yilun Wei, Shanghai, CN;
Ruifang Gu, Shanghai, CN;
Hua Fang, Shanghai, CN;
Shufang Ji, Shanghai, CN;
Hui Yao, Shanghai, CN;
CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing, CN;
SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY, SINOPEC, Shanghai, CN;
Abstract
A process of producing isopropyl benzene which solves the problem of high amount of n-propyl benzene according to the prior art. The process separates the polyisopropyl benzene through a suitable rectification into two streams of relatively lighter and heavier components, wherein the content of diisopropylbenzene in the stream of relatively lighter components is controlled to be at least greater than 95 wt %, and the content of tri-isopropyl benzene in the stream of relatively heavier components is controlled to be at least greater than 0.5 wt %. Such a technical solution subjecting the two streams respectively to the transalkylation solves the problem raised from the prior art, and is useful for the industrial production of isopropyl benzene.