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:
Jul. 02, 2013
Filed:
Mar. 13, 2009
John Kerr, South Croyden, GB;
Robert Jansen, Portella LRS, PT;
Christian J. Isaac, Fort Dodge, IA (US);
James Edwin Wiley, Jr., Daphne, AL (US);
Duane A. Leinhos, Satsuma, AL (US);
John Kerr, South Croyden, GB;
Robert Jansen, Portella LRS, PT;
Christian J. Isaac, Fort Dodge, IA (US);
James Edwin Wiley, Jr., Daphne, AL (US);
Duane A. Leinhos, Satsuma, AL (US);
Tate & Lyle Technology Limited, London, GB;
Abstract
A method of removing a carboxylic acid from a liquid that contains a tertiary amide solvent includes a step of contacting the liquid with an extraction medium comprising an amine. The amine is immiscible with both water and the tertiary amide solvent, and the contacting step forms a de-acidified phase containing the tertiary amide solvent and a phase containing the extraction medium and the carboxylic acid. Both the liquid that contains the tertiary amide solvent and the de-acidified phase may also contain a sucrose-6-acylate.