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. 15, 2014
Filed:
May. 05, 2011
Removal of amine compounds from carbonylation process stream containing corrosion metal contaminants
G. Paull Torrence, League City, TX (US);
Brian Hokkanen, Houston, TX (US);
Yaw-hwa Liu, Missouri City, TX (US);
G. Paull Torrence, League City, TX (US);
Brian Hokkanen, Houston, TX (US);
Yaw-Hwa Liu, Missouri City, TX (US);
Celanese International Corporation, Dallas, TX (US);
Abstract
A process for removing amine compounds from a process stream derived from a carbonylation process. The amine compounds may be present as iodide salts. The process stream also contains corrosion metal contaminants. The amine compounds are removed by mixing a portion of the process stream a slipstream to form an aqueous stream having a water concentration of greater than 50 wt. %. The aqueous stream is contacted with an exchange resin to remove amine compounds, as well as corrosion metal contaminants.