Production of aqua ammonia and ammonium phosphate

Claim 2

A PROCESS FOR PRODUCING A CONCENTRATED AQUA AMMONIA SOLUTION FROM LIQUID AMMONIA AND WATER COMPRISING THE STEPS OF VAPORIZING SAID LIQUID AMMONIA, ABSORBUNG THE SO-PRODUCED AMMONIA VAPORS IN WATER THEREBY PRODUCING A HEATED DILUTE AQUA AMMONIA, COOLING THE HEATED DILUTE AQUA AMMONIA BY INDIRECT HEAT EXCHANGE, DIVIDING THE COOLED DILUTE AQUA AMMONIA INTO TWO PORTIONS, RETURNING ONE PORTION TO THE ABSORPTION STEP AS AT LEAST A PORTION OF THE ABSORBENT WATER, SEPARATELY INJECTING ADDITIONAL LIQUID AMMONIA INTO OTHER PORTION OF THE COOLED DILUTE AQUA AMMONIA THEREBY PRODUCING A HOT CONCENTRATED AQUA AMMONIA, PASSING THIS HOT CONCENTRATED AQUA AMMONIA IN INDIRECT HEAT EXCHANGE WITH THE ABOVE-MENTION VAPORIZING LIQUID AMMONIA THEREBY PROVIDING LATENT HEAT FOR THE VAPORIZING STEP AND SIMULTANEOUSLY COOLING THE HOT CONCENTRATED SOLUTION OF AQUA AMMONIA, AND WITHDRAWING THE COOLED CONCENTRATED AQUA AMMONIA AS THE PRODUCT OF THE OPERATION.

Claim 3

A PROCESS FOR PRODUCING AN AQUEOUS AMMONIUM PHOSPHATE SOLUTION FROM LIQUID AMMONIA, PHOSPHORIC ACID AND WATER COMPRISING THE STEPS OF VAPORIZING SAID LIQUID AMMONIA, ABSORBING THE SO-PRODUCED VAPOROUS AMMONIA IN WATER THEREBY PRODUCING A WARMED DILUTE AQUA AMMONIA COOLING THE WARM DILUTE AQUA AMMONIA BY INDIRECT HEAT EXCHANGE, DIVIDING THE COOLING DILUTE AQUA AMMONIA IN TWO PORTIONS, RETURNING ONE PORTION TO THE ABSORPTION STEP AS AT LEAST A PORTION OF THE ABSORBENT WATER SEPARATELY INJECTING ADDITIONAL LIQUID AMMONIA INTO THE OTHER PORTION OF THE COOLED DILUTE AQUA AMMONIA THEREBY PRODUCING A HEAT CONCENTRATED AQUA AMMONIA, COOLING THIS HEAT CONCENTRATED AQUA AMMONIA BY PASSING SAME INDIRECT HEAT EXCHANGE WITH THE ABOVE MENTION VAPORIZING LIQUID AMMONIA WHEREBY LATENT HEAT IS PROVIDED AND THE HEATED CONCENTRATED AQUA AMMONIA IS SIMULTANEOUSLY COOLED, INJECTING PHOSPHORIC ACID INTO THE COOLED CONCENTRATED AQUA AMMONIA THEREBY PRODUCING AQUEOUS AMMONIUM PHOSPHATE, AND REMOVING THIS AQUEOUS AMMONIUM PHOSPHATE AS THE PRODUCT OF SAID OPERATION.

Claim 4

A PROCESS FOR PRODUCING AN AQUEOUS AMMONIUM PHOSPHATE SOLUTION FROM LIQUID AMMONIA, PHOSPHORIC ACID AND WATER COMPRISING THE STEPS OF VAPORIZING SAID LIQUID AMMONIA, ABSORBING THE SO-PRODUCED VAPOROUS AMMONIA IN WATER THEREBY PRODUCING A WARMED DILUTE AQUA AMMONIA COOLING THE WARM DILUTE AQUA AMMONIA BY INDIRECT HEAT EXCHANGE, DIVIDING THE COOLING DILUTE AQUA AMMONIA IN TWO PORTIONS, RETURNING ONE PORTION TO THE ABSORPTION STEP AS AT LEAST A PORTION OF THE ABSORBENT WATER SEPARATELY INJECTING ADDITIONAL LIQUID AMMONIA INTO THE OTHER PORTION OF THE COOLED DILUTE AQUA AMMONIA THEREBY PRODUCING A HEAT CONCENTRATED AQUA AMMONIA, COOLING THIS HEAT CONCENTRATED AQUA AMMONIA BY PASSING SAME INDIRECT HEAT EXCHANGE WITH THE ABOVE MENTION VAPORIZING LIQUID AMMONIA WHEREBY LATENT HEAT IS PROVIDED AND THE HEATED CONCENTRATED AQUA AMMONIA IS SIMULTANEOUSLY COOLED, INJECTING PHOSPHORIC ACID INTO THE COOLED CONCENTRATED AQUA AMMONIA THEREBY PRODUCING AQUEOUS AMMONIUM PHOSPHATE, AND REMOVING THIS AQUEOUS AMMONIUM PHOSPHATE AS THE PRODUCT OF SAID OPERATION.