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:
Aug. 02, 2011
Filed:
May. 17, 2007
Nathan Kirk Powell, Waxahachie, TX (US);
Nathan Jeremy Nagel, Houston, TX (US);
Fred Ronald Olsson, Corpus Christi, TX (US);
Wayne David Picard, Houston, TX (US);
Ronald David Shaver, Houston, TX (US);
Ismael Torres Tejeda, Seabrook, TX (US);
Nathan Kirk Powell, Waxahachie, TX (US);
Nathan Jeremy Nagel, Houston, TX (US);
Fred Ronald Olsson, Corpus Christi, TX (US);
Wayne David Picard, Houston, TX (US);
Ronald David Shaver, Houston, TX (US);
Ismael Torres Tejeda, Seabrook, TX (US);
Celanese International Corporation, Dallas, TX (US);
Abstract
An improved apparatus and method of producing acetic acid includes condensing overhead vapor to provide reflux to the light ends column as well as condensing vapor from a central portion of the light ends column to increase capacity. Throughput or load on the light ends column is substantially reduced without compromising product quality.