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:
May. 29, 2007
Filed:
Mar. 02, 2004
Wayne D. Picard, Houston, TX (US);
Jose J. Arturo Talancon, Mexico City, MX;
David A. Trueba, Webster, TX (US);
Mark O. Scates, Houston, TX (US);
Raymond J. Zinobile, Houston, TX (US);
Wayne D. Picard, Houston, TX (US);
Jose J. Arturo Talancon, Mexico City, MX;
David A. Trueba, Webster, TX (US);
Mark O. Scates, Houston, TX (US);
Raymond J. Zinobile, Houston, TX (US);
Celanese International Corporation, Dallas, TX (US);
Abstract
An improvement of the methanol carbonylation process for manufacturing acetic acid is disclosed. Specifically disclosed is a method for removing permanganate reducing compounds ('PRC's') from the condensed light ends overhead stream, including (a) distilling at least a portion of the condensed light ends overhead to yield a PRC enriched second overhead stream; (b) extracting the second overhead stream with water and separating therefrom an aqueous stream containing PRC's; and (c) returning at least a portion of the extracted second overhead to the second distiller.