Nitrogen and phosphorus containing product and process for producing same

Claim 1

THE PROCESS FOR PRODUCING A NITROGEN AND PHOSPHORUS-CONTAINING PRODUCT WHICH COMPRISES REACTING ONE MOLE OF PHOSPHORUS OXYCHLORIDE WITH AT LEAST FIVE MOLES OF AMMONIA IN AN INERT SOLVENT WHICH DISSOLVES BUT DOES NOT REACT WITH THE SAID REACTANTS AT A TEMPERATURE BELOW 100* C. TO PRODUCE AN INITIALLY-FORMED NITROGEN AND PHOSPHORUS-CONTAINING PRODUCT MIXED WITH AMMONIUM CHLORIDE, THEN HEATING SAID INITIALLYFORMED NITROGEN-PHOSPHORUS-CONTAINING PRODUCT TO A TEMPERATURE OF AT LEAST 110* C., BUT NOT ABOVE 150* C., UNTIL A NITROGEN-PHOSPHORUS-CONTAINING PRODUCT SUBSTANTIALLY FREE OF CHEMICALLY COMBINED CHLORIDE IS OBTAINED AND SAID PRODUCT BECOMES SUBSTANTIALLY INSOLUBLE IN LIQUID ANHYDROUS AMMONIA, REMOVING THE SAID SOLVENT AND THEREAFTER SEPARATING SAID SUBSTANTIALLY CHLORINE-FREE NITROGEN-PHOSPHORUS-PRODUCT FROM AMMONIUM CHLORIDE BY LEACHING SAID PRODUCT WITH LIQUID ANHYDROUS AMMONIA.