METHOD FOR PURIFYING SUCRALOSE
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United States of America Patent
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Issued Date -
Dec 14, 2023
app pub date -
Nov 13, 2020
filing date -
Nov 13, 2020
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Abstract
Disclosed is a method for purifying sucralose, including: removing a solvent from a sucralose reaction solution to obtain a concentrated crude sucralose solution; under stirring, adding ethyl acetate into the concentrated crude sucralose solution, heating to a preset temperature, and holding at the preset temperature for a first preset time to obtain a crude product slurry with a certain amount of a sucralose crystal; and subjecting the crude product slurry to gradient cooling to an endpoint temperature, holding at the endpoint temperature for a second preset time, and filtering to obtain a sucralose crystal.
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