Tate & Lyle Technology Ltd.
|Tate & Lyle Technology Ltd. Patent applications|
|Patent application number||Title||Published|
|20120157676||Process for removing dimethylamine - 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.||06-21-2012|
|20120095199||Based-Assisted formation of Tin-Sucrose Adducts - A method of forming a sucrose-6-ester includes in sequence the steps of: a) contacting sucrose with a organotinbased acylation promoter in a solvent in the presence of a base selected from amines and basic alkali metal salts; b) removing water to form a tin-sucrose adduct; and c) contacting the tin-sucrose adduct with an acylating agent to form the sucrose- 6-ester. The sucrose-6-ester may then be converted to sucralose.||04-19-2012|
|20120077972||Chlorination of sucrose-6-esters - A method for the chlorination of a sucrose-6-acylate to produce a 4,1′,6′-trichloro-4,1′,6′-trideoxy-galactosucrose-β-acylate wherein said method comprises: (i) reacting the sucrose-6-acylate with a chlorinating agent in a reaction vehicle comprising a tertiary amide in order to chlorinate the 4, V and 6′ positions of the sucrose-6-acylate; and (ii) quenching the product stream of (i) to produce a 4,1′,6′-trichloro-4,1′,6′-trideoxy-galactosucrose-6-acylate; wherein before said quenching, a portion of the tertiary amide is removed.||03-29-2012|
Patent applications by Tate & Lyle Technology Ltd.