Ammonium nitrate neutralizer
Abstract
Abstract HIGHLY DILUTE NITRIC ACID IS NEUTRALIZED WITH AMMONIA BY FEEDING THE ACID INTO AN AQUEOUS FIRST REACTION ZONE OF A THERMAL SIPHON-PRESSURE PUMP NEUTRALIZER, FEEDING AMMONIA INTO PROXIMITY TO AN AQUEOUS SECOND REACTION ZONE, WHICH IS CONTIGUOUS WITH SAID FIRST REACTION ZONE, AND IN CIRCULATING COMMUNICATION THEREWITH IN THE NEUTRALIZER, CIRCULATING THE NITRIC ACID INTO THE SECOND REACTION ZONE SUCH THAT WHEN THE ACID ENTERS THE SECOND REACTION ZONE ITS CONCENTRATION IS LESS THAN 15% AND PREFERABLY LESS THAN 0.5 TO 1%. A PREDOMINANT PROPORTION OF THE NITRIC ACID IS NEUTRALIZED WITH THE AMMONIA IN THE SECOND REACTION ZONE SO AS TO FORM AN AMMONIUM NITRATE CONTAINING SOLUTION. THIS SOLUTION IS REMOVED FROM THE SECOND REACTION ZONE, RECIRCULATED TO THE FIRST REACTION ZONE, AND IS RECOVERED AS AN AMMONIUM NITRATE PRODUCT. CIRCULATION FOR THE PROCESS IS FACILITATED BY A THERMAL SIPHON AND PRESSURE EFFECT CAUSED BY THE EXOTHERMAL HEAT OF NEUTRALIZATION OF THE NITRIC ACID WITH THE AMMONIA AND BY THE DENSITY DIFFERENTIAL BETWEEN THE PRODUCT SOLUTION AND THE REACTED SOLUTION.
Inventors
- 👤 T Cook
- 👤 G Tucker
- 👤 M Brown
Bibliographic Details
Claims Analysis
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