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:
Oct. 01, 2019
Filed:
Sep. 05, 2014
Scg Chemicals Company Limited, Bangkok Metropolis, TH;
Gtc Technology Us, Llc, Houston, TX (US);
Attapong Thirasak, Bangkok Methropolis, TH;
Alisa Kammafoo, Bangkok Methropolis, TH;
Wiroon Tanthapanichakoon, Bangkok Methropolis, TH;
Zhongyi Ding, Katy, TX (US);
Sachin Joshi, Katy, TX (US);
Arnat Prombunglum, Bangkok Methropolis, TH;
Worawut Tamthaisong, Bangkok Methropolis, TH;
Purachet Pitipuech, Bangkok Methropolis, TH;
SCG CHEMICALS CO., LTD., Bangkok, TH;
GTC TECHNOLOGY US, LLC, Houston, TX (US);
Abstract
Process for the distillative separation of ethylbenzene from a mixture comprising ethylbenzene and at least one other C8 aromatic compound, comprising distilling said mixture in a distillation column in the presence of an extractive solvent, characterized in that the distillation column is operated at a sub-atmospheric pressure.