Silicophosphatic product and method of making same

Claim 1

PROCESS FOR PRODUCING A STABLE, FREE FLOWING, RELATIVELY NON-HYGROSCOPIC PHOSPHATIC COMPOSITION OF MATTER HAVING HIGH PHOSPHATE AVAILABILITY AND A HIGH PHOSPHORUS TO ALKALINE EARTH METAL WEIGHT RATIO WHICH COMPRISES: REACTING A PHOSPHATIC MATERIAL COMPOSED PREDOMINANTLY OF A SOLID SOLUTION OF AT LEAST ONE SILICOPHOSPHATE SELECTED FROM THE GTOROUP CONSISTING OF ALKALINE EARTH METAL SILICOPHOSPHATES AND ALKALINE EARTH METAL-ALKALI METAL SILICOPHOSPHATES WITH A QUANTITY OF PHOSPHORIC ACID SUFFICIENT TO FORM A REACTION PRODUCT HAVING A PHSOPHORUS TO ALKAINE EARTH METAL (CALCULATED AS EQUIVALENT P/CA) WEIGHT RATIO OF BETWEEN ABOUT 0.7, 2.5 AND CONTAINING UP TO 27% BY WEIGHT PHOSPHORUS AND CAPABLE OF CONTAINING UP TO ABOUT 9% BY WEIGHT FREE, ACETONE SOLUBLE) PHOSPHORIC ACID, SAID PHOSPHATIC MATERIAL HAVING A PHOSPHORUS CONTENT OF NOT MORE THAN ABOUT 18% P AND BEING IN THE FORM OF PARTICLES SUBSTANTIALLY ALL OF WHICH HAVE A PARTICLE SIZE OF MINUS 10 MESH (TYLER STANDARD); DRYING THE PRODUCT OF SAID REACTION TO OBTAIN A PHOSPHATIC COMPOSITION OF MATTER CONTAINING NOT MORE THAN 5% BY WEIGHT OF MOISTURE; AND RECOVERING SAID DRY, FREE FLOWING, RELATIVELY NON-HYGROSCOPIC COMPOSITION OF MATTER.