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:
Dec. 23, 2008
Filed:
Jul. 11, 2006
Myron Myonkee Lee, Seongnam-si, KR;
Duk-jun Kwon, Seoul, KR;
Dong-won Lee, Anyang-si, KR;
Alexander Jongwon Lee, Seongnam-si, KR;
Myron Myonkee Lee, Seongnam-si, KR;
Duk-Jun Kwon, Seoul, KR;
Dong-Won Lee, Anyang-si, KR;
Alexander Jongwon Lee, Seongnam-si, KR;
ANT Corporation, Gyeonggi-do, KR;
Abstract
An improved process for producing an aromatic carboxylic acid from an aromatic alkyl hydrocarbon is described, wherein the improvement comprises using the same aromatic alkyl hydrocarbon as the azeotropic agent for separation of acetic acid and methyl acetate from water via azeotropic distillation. The process of this invention has considerable advantages over other known processes, particularly in regards to consumption of the azeotropic agent and utilities, formation of undesirable impurities and operating costs.