Process for the continuous preparation of sodium perborate monohydrate from sodium perborate tetrahydrate

摘要

1. Process for continuous production of sodium perborate monohydrate by dehydration of sodium perborate tetrahydrate in only one step in a bed fluidized by means of a current of hot air, characterized in that the temperature of the air is between 100 C and 180 C when it enters the fluidization zone and that, in the said zone, the temperature is between the fusion temperature of sodium perborate tetrahydrate and 80 C and the relative humidity is below 40% and at least 10%.