Purification of Sucralose Containing Feed Streams for Sucralose Crystallization
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United States of America Patent
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Issued Date -
Dec 3, 2009
app pub date -
Mar 27, 2009
filing date -
Apr 3, 2008
priority date (Note) -
Abandoned
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Abstract
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.
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