Method for extracting floccules from sucralose

The invention relates to a method for extracting floccules from sucralose, which is characterized by comprising the following steps of: standing and layering sugar liquid obtained by esterification reaction in a hydrolysis kettle in an extraction section, putting the obtained floccules into a floccule receiving tank, pumping a floccule phase into the hydrolysis kettle, adding acetic anhydride and cyclohexane into the hydrolysis kettle, and reacting for 2-4 hours; the volume ratio of the floccule phase to acetic anhydride to cyclohexane is controlled to be 15: 1: 8, hydrolysis is conducted for 55-65 min at the temperature of 30-40 DEG C, and a light phase obtained after hydrolysis enters a cyclohexane tank and then enters a concentration kettle; heavy phases from the floccule receiving tank and the hydrolysis kettle enter a DMF (Dimethyl Formamide) tank together. The method has the advantages of simple process, low investment, quick benefit expression and reduction of tin ester consumption, thereby reducing th