Production of sodium tripolyphosphate

摘要: The invention relates to a process for making sodium tripolyphosphate from wet-processed phosphoric acids which contain organic impurities, are neutralized and concentrated give an orthophosphate solution or suspension is sprayed in spray tower contact with one more oxidants. More particularly, tripolyphosphate, suitable use detergent slurries causes the temperature determined after 1 5 minutes, respectively, hydration test (ROH) be increased by at least 7° C., made; this end, first admixed oxidants then concentrated.