Esterification Protection

1. Sucrose reacts with acetic anhydride to form sucrose-6-acetate.
2. Chlorination

   Selective chlorination at specific positions to form sucralose-6-acetate.
3. Deacetylation

   Hydrolysis under alkaline conditions to remove acetyl groups.
4. Extraction & Decolorization

   Organic solvent extraction and activated carbon treatment.
5. Concentration & Crystallization

   Vacuum concentration and cooling crystallization.
6. Recrystallization & Drying

   Recrystallization for high purity, then drying and milling.