Method of and apparatus for producing ammonium phosphate

Claim 1

A METHOD OF PRODUCING CRYSTALLINE AMMONIUM METAPHOSPHATE AS A DRY FREE-FLOWING POWDER THAT CONSISTS IN SUPPLYING ELEMENTAL PHOSPHORUS TO A COMBUSTION CHAMBER AND SUPPLYING AIR TO THE PHOSPHORUS AT ITS POINT OF DELIVERY TO THE COMBUSTION CHAMBER, THE RATIO OF AIR SUPPLY RATE TO THE RATE OF SUPPLY OF PHOSPHORUS BEING SUCH THAT THE PHOSPHORUS IS BURNED TO PHOSPHORUS PENTOXIDE, FEEDING THE PHOSPHORUS AND COMBUSTION AIR TO THE COMBUSTION CHAMBER AT SUCH RATES THAT THE TEMPERATURE RESULTING FROM THE REACTION OF AIR AND PHOSPHORUS MAINTAINS THE REACTION PRODUCT PHOSPHORUS PENTOXIDE IN A GASEOUS STATE DISCHARGING THE PHOSPHORUS PENTOXIDE FROM THE COMBUSTION CHAMBER INTO A REACTION CHAMBER, INTRODUCING ATMOSPHERIC COOLING AIR AND AMMONIA INTO SAID REACTION CHAMBER, THE AMMONIA BEING SUPPLIED AT A RATE SUFFICIENT TO REACT WITH THE PHOSPHORUS PENTOXIDE AND THE WATER SUPPLIED THERETO BY SAID COOLING AIR AND THE WATER IN SAID COMBUSTION AIR TO FORM AMMONIUM METAPHOSPHATE, DISCHARGING THE AMMONIUM METAPHOSPHATE INTO A COLLECTING CHAMBER, SUPPLYING COOLING AIR INTO THE COLLECTING CHAMBER ADJACENT THE POINT OF ENTRY THEREINTO OF THE AMMONIUM METAPHOSPHATE AND SO REGULATING THE AMOUNTS OF COOLING AIR SUPPLIED TO SAID REACTION CHAMBER AND TO SAID COLLECTING CHAMBER THAT THE TEMPERATURE OF THE AMMONIUM PHOSPHATE IN THE COLLECTION CHAMBER IS NOT MORE THAN ABOUT 450* F.

Claim 2

A METHOD OF PRODUCING CRYSTALLINE AMMONIUM METAPHOSPHATE AS A DRY FREE-FLOWING POWDER THAT CONSISTS IN SUPPLYING ELEMENTAL PHOSPHORUS TO A COMBUSTION CHAMBER AND SUPPLYING AIR TO THE PHOSPHORUS AT ITS POINT OF DELIVERY TO THE COMBUSTION CHAMBER, THE RATIO OF AIR SUPPLY RATE TO THE RATE OF SUPPLY OF PHOSPHORUS BEING SUCH THAT THE PHOSPHORUS IS BURNED TO PHOSPHORUS PENTOXIDE, FEEDING THE PHOSPHORUS AND COMBUSTION AIR TO THE COMBUSTION CHAMBER AT SUCH RATES THAT THE TEMPERATURE RESULTING FROM THE REACTION OF AIR AND PHOSPHORUS MAINTAINS THE REACTION PRODUCT PHOSPHORUS PENTOXIDE IN A GASEOUS STATE DISCHARGING THE PHOSPHORUS PENTOXIDE FROM THE COMBUSTION CHAMBER INTO A REACTION CHAMBER, INTRODUCING ATMOSPHERIC COOLING AIR AND AMMONIA INTO SAID REACTION CHAMBER, THE AMMONIA BEING SUPPLIED AT A RATE SUFFICIENT TO REACT WITH THE PHOSPHORUS PENTOXIDE AND THE WATER SUPPLIED THERETO BY SAID COOLING AIR AND THE WATER IN SAID COMBUSTION AIR TO FORM AMMONIUM METAPHOSPHATE, DISCHARGING THE AMMONIUM METAPHOSPHATE INTO A COLLECTING CHAMBER, SUPPLYING COOLING AIR INTO THE COLLECTING CHAMBER ADJACENT THE POINT OF ENTRY THEREINTO OF THE AMMONIUM METAPHOSPHATE AND SO REGULATING THE AMOUNTS OF COOLING AIR SUPPLIED TO SAID REACTION CHAMBER AND TO SAID COLLECTING CHAMBER THAT THE TEMPERATURE OF THE AMMONIUM PHOSPHATE IN THE COLLECTION CHAMBER IS NOT MORE THAN ABOUT 450* F.