METATHESIS OF ACIDIC BY-PRODUCT OF CHLORINE DIOXIDE GENERATING PROCESS.

摘要

SODIUM SESQUISULFATE PRODUCED IN CRYSTALLINE FORM IN A HIGH ACIDITY METHANOL-BASED HIGHLY EFFICIENT CHLORINE DOIXIDE GENERATING PROCESS IN CONVERTED BY METATHES IS TO CRYSTALLINE ANHYDROUS NEUTRAL SODIUM SULFATE AND THE ACID RECOVERED AS A RESULT IS RECYCLED TO THE CHLORINE DIOXIDE GENERATING STEP. THE METATHESIS IS EFFECTED BY CONTACTING THE CRYSTALLINE SODIUM SESQUISULFATE WITH AQUEOUS SODIUM CHLORATE SOLUTION, AQUEOUS SODIUM CHLORIDE SOLUTION, AQUEOUS METHANOL OR WATER ALONE. THE METATHESIS IS EFFECTED IN SUCH MANNER AS TO MINIMIZE THE ADDITIONAL EVAPORATIVE LOAD IMPOSED ON THE CHLORINE DIOXIDE GENERATING PROCESS BY THE METATHESIS MEDIUM. (FIG. 1)