PREPARATION OF A HEXAHYDRATED SODIUM TRIPOLYPHOSPHATE WITH A HIGH ABSORPTION CAPABILITY

摘要

The invention concerns a hexahydrated sodium tripolyphosphate with a high absorption capability and a process for the preparation thereof. The tripolyphosphate is prepared by a process which includes taking a first anhydrous sodium tripolyphosphate of which the major part is in the form of phase 1 and spraying water or an aqueous medium thereover; taking a second anhydrous sodium tripolyphosphate essentially in the form of phase 2 and spraying water or an aqueous medium thereover; mixing the two tripolyphosphates thus treated; introducing the resulting mixture into water or an aqueous medium to form a suspension; and drying said suspension thereby producing hexahydrated sodium tripolyphosphate. The product obtained may be used for detergent compositions.