Cross Link Starch

Cross Link Starch (Di-starch phosphate) is made using either Sodiumtrimetaphosphate (STMP) or Phosphor-oxychloride (POCl₃).  After adding the required amount of caustic, the starch is heated and the reagent added. Swelling inhibitor is used in order to avoid starch gelatinization due to high pH.  When product specification is met, slurry is neutralized, washed, dewatered and dried.