PROCESS FOR PREPARING ALKALI METAL ALUMINIUM PHOSPHATE AND PRODUCT PRODUCED THEREBY

摘要

The addition of calcium sulfate to an alkali metal aluminum phosphate slurry prior to drying provides an improved process which results in a cleaner reactor, easier drying and granulation, increased production rates, a decreased mill heat requirement and a product having an increased density which is less dusty allowing for easier handling, and substantially non-hygroscopic which avoids caking and blinding of classifier screens.