Tate & Lyle Technology Limited

Duane Leinhos

John Kerr

Robert P Jansen

James Edwin Wiley, Jr

Anthony Baiada

David A Dentel

Gordon Walker

Christian J Isaac

Sebastien Camborieux

Carlo Maffezzoni

James Edwin Wiley

Robert Jansen

Carlo Maffezoni

A process for removing dimethylamine (DMA) before and/or during and/or after deacylation in a reaction vessel of a feed stream comprising a sucralose-6-acylate resulting from the chlorination of a sucrose-6-acylate in the presence of dimethyl formamide (DMF), wherein the deacylation is conducted at a first set of conditions of temperature, pH and pressure, the process comprising: (a) providing a side stream loop from and to the reaction vessel; (b) adjusting the conditions of one or more of temperature, pH, and pressure in the loop, and setting the flow rate through the loop, to remove DMA while minimising carbohydrate degradation.

Process for removing dimethylamine

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.

Removal of acids from tertiary amide solvents

The present invention provides a method for producing sucralose from a feed stream resulting from the chlorination of a sucrose-6-acylate in a reaction vehicle. The feed stream includes a sucralose-6-acylate, the reaction vehicle, water, and salts. The salts include one or more selected from the group consisting of alkali metal chlorides, alkaline earth metal chlorides and ammonium chloride. The method includes:

Method for the production of sucralose

The present invention provides a method for producing sucralose from a feed stream including a sucrose-6-acylate in a reaction vehicle. The method includes:

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Satsuma, AL, United States of America

Duane Leinhos