Tate & Lyle Technology Limited Patent applications |
Patent application number | Title | Published |
20140350223 | ENHANCED PRODUCTION AND PURIFICATION OF A NATURAL HIGH INTENSITY SWEETENER - Recombinant | 11-27-2014 |
20120289693 | Extraction of Carboxylic Acids with Tin Compounds - A method of removing a carboxylic acid from a liquid including a tertiary amide solvent includes:
| 11-15-2012 |
20120157675 | PURIFICATION OF TERTIARY FORMAMIDE CONTAMINATED WITH TERTIARY ACETAMIDE - A chlorinating agent such as a chloroiminium species is used to remove or neutralize tertiary acetamide present as a contaminant in a tertiary formamide solvent. Tertiary formamide solvent purified or treated in this manner can be used as a reaction vehicle for the chlorination of sucrose-6-acylates, thereby improving the yields of the desired sucralose-6-acylate (an intermediate in the production of sucralose). | 06-21-2012 |
20110294083 | Molten Salt Treatment System and Process - A molten salt treatment system and process can include one or more tubular conduits flowably connected to a molten salt reactor, the tubular conduit containing concentrically within it a pipe or a shaft separated by an annular space therebetween, and one or more gas sources connected to feed gas into the annular space. The system may include a scrubbing device flowably connected to a molten salt reactor off-gas outlet to receive an off-gas, a first heating device configured to heat the effluent from the scrubbing device, and a filtering device flowably connected to receive the effluent from the heating device. An overflow conduit may be flowably connected to a molten salt reactor overflow outlet to receive molten salt therefrom and discharge the molten salt to a salt recovery vessel, and a blower or other gas mover may be connected to the molten salt reactor and the recovery vessel to prevent backflow of cold gases through the overflow outlet to the molten salt reactor. | 12-01-2011 |
20110087019 | Process for the production of sucrose-6-ester - A process for the production of sucrose-6-ester is disclosed. The process includes, in order, the steps of:
| 04-14-2011 |
20110087018 | Low Temperature, Single Solvent Process for the Production of Sucrose-6-Ester - A method for the preparation of a sucrose-6-ester is disclosed. In a first step of the method, sucrose in a polar aprotic solvent is reacted with an organotin-based acylation promoter. The water of reaction is removed at a temperature that does not exceed about 80° C. In one aspect, the water is removed by distillation of part of the polar aprotic solvent at reduced pressure. In a second step, a carboxylic acid anhydride is added. In one aspect, the resulting reaction mixture is maintained at a temperature of 10° C. or less for a period of time sufficient to produce a sucrose-6-ester. The sucrose-6-ester can be converted to sucralose. | 04-14-2011 |
20100081803 | EFFECT OF CARBOHYDRATE CONCENTRATION ON SUCRALOSE EXTRACTION EFFICIENCY - A process for the purification of aqueous feed streams containing sucralose comprises:
| 04-01-2010 |
20090304882 | SPARKLING AGGLOMERATED SWEETENER, AND METHOD OF MAKING IT - A low calorie sweetener composition includes large sucrose crystals and agglomerated particles each containing a high intensity sweetener, a plurality of small sucrose crystals and a binder. The composition may have about one half the bulk density, and about one half the calories on a volume basis, of standard table sugar. The composition typically has a sparkling appearance that causes it to resemble common table sugar, and it may be used in such applications as baking and for sweetening drinks such as coffee, tea, and the like. | 12-10-2009 |
20090299055 | Purification of Sucralose Containing Feed Streams for Sucralose Crystallization - A process for the recovery of a carbohydrate selected from sucralose and sucralose-6-esters from an aqueous feed stream is disclosed. The process comprises extracting the feed stream with an organic solvent, such as ethyl acetate, back extracting the resulting carbohydrate-containing organic extract with an aqueous solvent, and either crystallizing the carbohydrate from the organic solvent or replacing the organic solvent with water and crystallizing the carbohydrate from water. The process results in an increased overall yield of the carbohydrate. | 12-03-2009 |
20090299054 | SUCRALOSE PURIFICATION PROCESS - A process for the extraction of sucralose from an aqueous solution containing at least sucralose, other chlorinated saccharides, sodium chloride and dimethylammonium chloride into an organic solvent for sucralose by contacting said organic solvent with said solution to extract sucralose into the organic solvent. The ratio of sodium chloride to dimethylammonium chloride in the aqueous solution is increased prior to or during contact so as to increase the partition coefficient of sucralose into said organic solvent. | 12-03-2009 |
20090281295 | CRYSTALLIZATION OF SUCRALOSE FROM SUCRALOSE-CONTAINING FEED STREAMS - A process for the purification of sucralose in sucralose-containing feed streams is disclosed. The process includes multiple liquid-liquid extraction steps; optionally, a concentration step; multiple crystallization steps; optionally, a chromatography step; and various recycle steps. | 11-12-2009 |
20090264633 | METHOD FOR THE PRODUCTION OF SUCRALOSE - 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:
| 10-22-2009 |
20090259036 | EXTRACTION OF LESS POLAR IMPURITIES FROM SUCRALOSE CONTAINING AQUEOUS FEED STREAMS - A process for the purification of sucralose containing aqueous feed streams is disclosed. The process comprises the step of extracting an aqueous feed stream comprising sucralose and impurities less polar than sucralose, such as tetrachloro saccharides, with an organic solvent that is immiscible with water, such as ethyl acetate. In this step, the mass ratio of organic solvent to aqueous feed stream is in the range of 0.4 to 0.9. Greater than 50% of the sucralose and greater than 95% of the tetrachloro saccharide impurities are extracted into the organic extract. The organic extract is back extracted with water and the resulting aqueous extract recycled to the initial extraction step. | 10-15-2009 |
20090259034 | REMOVAL OF ACIDS FROM TERTIARY AMIDE SOLVENTS - 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. | 10-15-2009 |
20090247737 | 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:
| 10-01-2009 |
20090130273 | FREEZE DRIED SUCRALOSE - A method of freeze drying sucralose includes contacting a sucralose solution with a cold surface or a cold fluid to freeze the solution, and evaporating the solvent to dry the sucralose. The sucralose solution may include undissolved crystalline sucralose. Non-agglomerated sucralose spheres may be produced in some aspects of the invention. | 05-21-2009 |