Invention Grant
- Patent Title: Removal of acids from tertiary amide solvents
- Patent Title (中): 从叔酰胺溶剂中除去酸
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Application No.: US12403762Application Date: 2009-03-13
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Publication No.: US08476424B2Publication Date: 2013-07-02
- Inventor: John Kerr , Robert Jansen , Christian J. Isaac , James Edwin Wiley, Jr. , Duane A. Leinhos
- Applicant: John Kerr , Robert Jansen , Christian J. Isaac , James Edwin Wiley, Jr. , Duane A. Leinhos
- Applicant Address: GB London
- Assignee: Tate & Lyle Technology Limited
- Current Assignee: Tate & Lyle Technology Limited
- Current Assignee Address: GB London
- Agency: RatnerPrestia
- Main IPC: C07H1/06
- IPC: C07H1/06 ; C07H5/02
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.
Public/Granted literature
- US20090259034A1 REMOVAL OF ACIDS FROM TERTIARY AMIDE SOLVENTS Public/Granted day:2009-10-15
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